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JP2004201194

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2004201194
An object of the present invention is to make it possible for a player who has headphones to
distinguish between a game sound and the voice of the other player. A sound image of game
sound output from an online game device with a communication function is localized outside the
head of a player wearing headphones by a signal processing circuit, and the voice of the
opponent player's voice output from the game device. The sound image is localized in the same
player's head. [Selected figure] Figure 16
Headphone device
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
headphone device used to listen to game sounds, music, voices of human voices and the like. 2.
Description of the Related Art A game device has been developed which can be enjoyed by
connecting to a communication network such as the Internet and exchanging information via the
communication network. Such game devices are generally referred to as online game devices. In
a conventional game device, a person playing a game (hereinafter referred to as a "player". Only
one player or two or more players gather in one place and only enjoy the game using one game
device. On the other hand, according to the online game device, it is possible to enjoy one game
together using the game devices owned by two or more players in different places. For example,
two players in different places can compete in one game, or many players in various places can
participate in one game. Some online game devices have a function that allows a plurality of
players to have conversations via a communication network (hereinafter, this function is referred
to as a “voice communication function”). If a voice communication function is used, for
example, voice can be exchanged with the player of the opponent during the game. More
specifically, each player wears a microphone-equipped headphone in which a microphone and a
headphone are integrated. Then, when one player makes a voice, the voice is input to the on-line
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game device through the microphone of the headphone with a microphone, and reaches the online game device of the other player via the communication network. Reaches the other player's
ear via the microphone-equipped headphones that the player is wearing. Such voice exchange
can be bi-directional. On the other hand, in general, game devices have built-in sound
reproducing means, and music such as music, sound effects, game characters and the like
recorded on a ROM disk or a built-in hard disk etc. It is called "sound". ) Has the ability to play.
These game sounds are reproduced according to the contents of the game. As described above, in
the online game device with the voice communication function, the player can enjoy the game
while simultaneously listening to the voice of the other player and the game sound.
In this case, usually, the voice of the opponent player reaches the ear via the headphone with a
microphone, and the game sound is output to the room from a speaker connected to the online
game device. For example, since an online game device is usually connected to a television, game
sound is output from a speaker provided on the television. Also, in order to enjoy game sound
with higher sound quality, an online game device may be connected to an audio device, and game
sound may be output from a large speaker provided in the audio device. By the way, in an online
game apparatus with a voice communication function, since game sound is output from a
speaker such as a television or an audio device toward the room, the game sound becomes noise.
There is a case. For example, if a resident who lives in an apartment plays a game with loud noise
at midnight, the game sound will be noise, which will cause trouble to his neighbors. Therefore, it
is conceivable to capture not only the voice of the opponent player but also the game sound into
the headphone and output both the voice and the game sound only to the ear of the player.
However, when voice and game sound are simply synthesized and output by headphones, voice
and game sound are mixed in the same sound field. As a result, there is a problem that the player
can not distinguish the voice and the game sound clearly. For example, if the voice of the
opponent player is buried in the game sound, the game can not be enjoyed depending on the
contents of the game. This problem may occur not only in connection with gaming devices, but
also in connection with various devices. That is, this problem may occur in connection with
various devices that are supposed to synthesize two or more sounds and listen to them with
headphones. For example, in a device having a function of combining music output from a CD
player or the like and voice output from a mobile phone (such as a ringing tone and the other
party's voice) and listening with headphones, the listener A problem may occur that the music
output from the CD player or the like and the sound output from the mobile phone can not be
clearly distinguished. For example, if the ringing tone or voice of the mobile phone is buried in
the music output from the CD player, it will be difficult to make a call. The present invention has
been made in view of the problems as exemplified above, and an object of the present invention
is to provide a headphone device which can clearly distinguish two or more sounds.
A second object of the present invention is to provide a gaming headphone device capable of
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clearly discriminating between the voices of other players and game sounds. SUMMARY OF THE
INVENTION In order to solve the above-mentioned problems, a headphone device according to
claim 1 comprises two at least a first input means and a second input means for inputting an
audio signal. An audio signal whose position is determined by the first localization means, and at
least a first localization means for determining the position of the sound image of the audio
signal input to the first input means as described above to an arbitrary position. And synthesizing
means for synthesizing the audio signal input to the second input means, and output means for
outputting the audio signal synthesized by the synthesizing means. In order to solve the above
problems, a gaming headphone device according to an eighteenth aspect comprises the
headphone device according to any one of the first through seventeenth aspects, and an audio
input to the first input means. The signal is a game sound. BEST MODE FOR CARRYING OUT THE
INVENTION Hereinafter, embodiments of the present invention will be described based on the
drawings. First Embodiment A first embodiment of the present invention will be described with
reference to FIG. A headphone device according to a first embodiment of the present invention
(hereinafter, referred to as a "first headphone device". Shows the configuration of. FIG. 1 is an
illustration of the components and the like according to the embodiment of the present invention
as long as the technical concept is described, and the shapes, positions, connection relationships,
etc. of the respective components and the like are limited thereto It is not something to be done.
The same applies to FIGS. 2 to 13 used in the following description of the embodiments of the
present invention. The first headphone device 10 shown in FIG. 1 is a headphone device used to
listen to game sound, music, voice such as human voice. The first headphone device 10 includes
two or more input units including at least a first input unit 11 and a second input unit 12, a first
localization unit 13, a combining unit 14, and an output unit 15. The input means is a means for
inputting an audio signal. Two or more input means exist, and include at least a first input means
11 and a second input means 12. The number of input means may be three or four as long as it
is two or more, but for convenience of explanation, it is assumed that there are two input means
of the first input means 11 and the second input means 12 below. Take an example. Audio
signals are input to the first input unit 11 and the second input unit 12 separately.
However, the audio signals respectively input to the first input unit 11 and the second input unit
12 may be identical or different from each other. The audio signal input to the first input means
11 may be a monaural, 2-channel stereo, 5-channel surround, or multi-channel audio signal
having a number of channels or more. The same is true for the second input means 12. That is,
the number of channels of the audio signal input to each input means is not limited. Specifically,
the first input unit 11 may be configured by a connection terminal such as a jack or a plug.
Further, when it is necessary to convert an audio signal of an analog signal into a digital signal,
an analog-digital converter may be provided in the first input means 11. Furthermore, when
another signal conversion process is required, the necessary signal conversion circuit may be
provided in the first input means 11. The specific configuration that can be adopted is the same
for the second input unit 12. The voice signal is a signal corresponding to voice such as game
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sound, music, human voice, etc., and may be a digital signal if it is an analog signal. The first
localization means 13 is means for localizing the sound image of the audio signal input to the
first input means 11 outside the head of the listener. When the listener listens to the audio
output from the two speaker units provided in the headphone and the headphone, when the
audio is a mere monaural or stereo two-channel audio, the audio naturally comes to the listener's
Localize in the head. However, by performing appropriate signal processing on the audio signal
supplied to the speaker unit of the headphone, the audio output from the headphone is output as
if it were outside the head of the listener, for example, from the front, side or back of the listener
It can create the illusion of being As described above, a technology for localizing the sound
output from the headphone outside the head of the listener by performing signal processing on
the audio signal supplied to the headphone (hereinafter, this is referred to as “the out-of-head
sound image localization technology”. Several are known (for example, refer UnexaminedJapanese-Patent No. 11-557999). FIGS. 2 to 4 show an example of a general out-of-head sound
image localization technique. In FIG. 2, the voice generation source 1L is on the left side of the
listener L in the front direction, and the voice generation source 1R is on the right side of the
listener L in the front direction. The sound sources 1L and 1R are, for example, speakers
connected to an audio device.
The speech generation source 1L outputs speech SL, and the speech generation source 1R
outputs speech SR. Therefore, first, transfer function TF1 of voice SL from voice generation
source 1L to left ear EL of listener L, transfer function TF2 of voice SL from voice generation
source 1L to right ear ER of listener L, voice generation source 1R The transfer function TF3 of
the voice SR from the listener L to the left ear EL and the transfer function TF4 of the voice SR
from the voice generation source 1R to the right ear ER of the listener L are determined. Next, a
signal processing circuit 20 as shown in FIG. 3 is prepared. That is, the signal processing circuit
20 is provided with the filters 21, 22, 23 and 24 and the combiners 25 and 26. An audio signal
corresponding to the audio SL is input to the filters 21 and 22, respectively. Audio signals
corresponding to the audio SR are input to the filters 23 and 24, respectively. A filter coefficient
based on the transfer function TF1 is set in the filter 21, and a filter coefficient based on the
transfer function TF2 is set in the filter 22. A filter coefficient based on the transfer function TF3
is set in the filter 23, and a filter coefficient based on the transfer function TF4 is set in the filter
24. Further, the audio signals output from the filter 21 and the filter 23 are synthesized by the
synthesizer 25 and the synthesized audio signal is supplied to the left speaker unit 2L of the
headphone 2 shown in FIG. Further, the audio signal output from the filter 22 and the filter 24 is
synthesized by the synthesizer 26, and the synthesized audio signal is supplied to the right
speaker unit 2 R of the headphone 2. Thereby, as shown in FIG. 4, when the listener L who is the
headphone 2 listens to the audio SL and SR output from the speaker units 2L and 2R of the
headphone 2, the sound image of the audio SL is in front of the listener L on the left side. The
sound is localized at the position PL, and the sound image of the sound SR is localized at the
front right side position PR of the listener L. As a result, the listener feels as if the voices SL and
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SR are emitted from the front left side position PL and the front right side position PR of the
listener L. In the examples shown in FIGS. 2 to 4, the case where the two voices are localized at
two positions in the front left side and the front right side outside the head of the listener has
been described as an example. The present invention can also be applied to the case where one
or more sounds are localized at any one or more positions outside the head of the listener. For
example, in order to make the listener who is using headphones feel a so-called five-channel
surround sound field, a transfer function that is established between each channel and each ear
of the listener is determined, and a total of ten filters are obtained. The filter coefficients based
on the ten transfer functions may be respectively set, and the outputs from the filters may be
combined appropriately to obtain outputs of two channels, and these may be respectively
supplied to the left speaker unit and the right speaker unit of the headphone.
The first localization means 13 of the first headphone device 10 can be realized by adopting the
above-described out-of-head sound image localization technique. Specifically, the first localization
means 13 includes a DSP, and the DSP reproduces an out-of-head sound image localization
technique. The above-mentioned out-of-head sound image localization technology is realized by
reading the software into a CPU (central processing unit) and other circuits provided in a
general-purpose computer, instead of configuring the first localization means 13 with a dedicated
DSP. May be reproduced. The position / location of the audio signal input to the first input unit
11 outside the head of the listener by the first localization unit 13 depends on the application /
specification or input of the first headphone device 10. Can be selected appropriately based on
the number of channels of the signal. For example, the first localization means 13 may localize
the sound image of the audio signal input to the first input means 11 at two positions outside the
head of the listener. In addition, the sound image of the audio signal input to the first input unit
11 may be localized at five or more positions outside the head of the listener. More specifically,
as shown in FIG. 5, the sound image of the audio signal input to the first input means 11 is
outside the head of the listener by the first localization means 13 and is located to the left of the
listener in the forward direction. It may be configured to be localized at the right side position in
the forward direction and the forward direction. Further, as shown in FIG. 6, the sound image of
the audio signal input to the first input means 11 is outside the head of the listener, and the front
left position, front center position, front right position of the listener, It may be configured to be
localized at five or more positions including the lateral left position and the lateral right position.
Furthermore, as shown in FIG. 7, the sound image of the audio signal input to the first input
means 11 is outside the head of the listener, and the front left position, front center position,
front right position of the listener It may be configured to be localized at eight or more positions
including the lateral left position, the lateral right position, the rear left position, the rear center
position, and the rear right position. In addition, the sound image of the audio signal input to the
first input unit 11 may be localized at any one point outside the head of the listener. Returning to
FIG. 1, the combining means 14 is means for combining at least the audio signal in which the
sound image is localized by the first localization means 13 and the audio signal input to the
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second input means 12. The synthesizing unit 14 can be realized by, for example, a mixer or the
like, but may be configured to realize synthesis of an audio signal by reading software in a CPU
or other circuit provided in a general-purpose computer.
When the audio signal output from the first localization unit 13 or the second input unit 12 is a
digital signal, a digital-analog converter may be provided at the input unit or output unit of the
synthesis unit 14 or the like. The audio signal output from the combining means 14 has at least
two channels. The output means 15 is means for outputting the audio signal synthesized by the
synthesizing means 14. The output unit 15 includes, for example, a speaker unit attached to the
ear of the listener. More specifically, the output means 15 includes a left speaker unit and a right
speaker unit of headphones. The audio signals of two channels synthesized by the synthesizing
means 14 are respectively outputted to the left speaker unit and the right speaker unit of the
headphone. According to the first headphone device 10 having such a configuration, for example,
as shown in FIGS. 5 to 7, the audio signal input through the first input unit 11 and the first
localization unit 13 is Localize the headphones outside the head of the listener. On the other
hand, the audio signal input through the second input unit 12 is localized in the head of the
listener. Thus, the audio signal input from the first input unit 11 and the audio signal input from
the second input unit 12 are localized at different positions. Therefore, the listener can clearly
distinguish both sounds even when the sound input from the first input unit 11 and the sound
input from the second input unit 12 are simultaneously output from the headphones . Of course,
three or more input means are provided, and an audio signal inputted to one of the input means
is directly supplied to the synthesizing means, and an audio signal inputted to the remaining
input means excluding the input means Is provided to the synthesizing means via the
corresponding two or more localization means, and the localization means arranges the sound
images of the audio signals at mutually different positions by three or more audio signals. It is
possible to realize a headphone device that can be clearly discriminated. Second Embodiment A
second embodiment of the present invention will be described with reference to FIG. FIG. 2
shows a headphone device according to a second embodiment of the present invention
(hereinafter referred to as “second headphone device”. ) Is shown. As shown in FIG. 2, like the
first headphone device 10, the second headphone device 30 comprises a first input unit 11, a
second input unit 12, a first localization unit 13, a combining unit 14 and an output unit. It has
fifteen.
Furthermore, the second headphone device 30 is provided with a second localization means 31.
The second localization means 31 localizes the sound image of the audio signal input to the
second input means 12 at a position different from the position of the sound image determined
by the first localization means 13. Similar to the first localization means 13, the second
localization means 31 can be realized by adopting a well-known out-of-head sound image
localization technique, and the specific realization method is by DSP or the like. It does not
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matter whether it is due to The position of the sound image localized by the second localization
means 31 may be any position that is different from the position of the sound image localized by
the first localization means 13. That is, the position of the sound image localized by the second
localization means 31 may be inside or outside the listener's head. Further, the number of
positions for localizing the sound image may be one or plural. The audio signal in which the
sound image is localized by the second localization unit 31 is synthesized with the audio signal in
which the sound image is localized by the first localization unit 13 by the synthesizing unit 15
and supplied to the output unit 15. Also by the second headphone device 30 having such a
configuration, a sound image of an audio signal input through the first input unit 11 and the first
localization unit 13, and a second input unit 12 and the second localization unit Since the sound
image of the sound signal input via 31 is localized at mutually different positions, the listener
who has the headphone can clearly distinguish these two sounds. In particular, according to the
second headphone device 30, not only the position of the sound image of the sound signal input
to the first input unit 11 but also the position of the sound image of the sound signal input to the
second input unit 12 can be set. Since it is possible to freely control the direction of generation of
two or more sounds, not only the listener can identify two or more sounds, but also specify the
direction of generation of the sounds, and generate the direction of generation of plural sounds.
To create an illusion that the sound travels outside the head of the listener, or an illusion that the
sound travels between the head and the head of the listener. can do. Third Embodiment A third
embodiment of the present invention will be described with reference to FIG. FIG. 9 is a
headphone device according to a third embodiment of the present invention (hereinafter, this is
referred to as a “third headphone device”. ) Is shown. As shown in FIG. 9, the third headphone
device 40, like the first headphone device 10, comprises a first input unit 11, a second input unit
12, a first localization unit 13, a combining unit 14 and an output unit. It has fifteen.
Furthermore, the third headphone device 40 receives a wireless transmission means 41 for
wirelessly transmitting an audio signal in which a sound image is localized by the first
localization means 13, and an audio signal wirelessly transmitted by the wireless transmission
means 41. And wireless receiving means 42 for supplying the combining means 14 to the
combining means 14. The wireless transmission means 41 and the wireless reception means 42
can be composed of, for example, a transmitter and a receiver using infrared light, light, radio
waves, electromagnetic waves and the like. Also, it may be a transmitter / receiver that transmits
and receives digital signals, or a transmitter / receiver that transmits and receives analog signals.
Thus, the audio signal input to the first input unit 11 and whose sound image has been localized
by the first localization unit 13 is wirelessly transmitted from the wireless transmission unit 41.
The wirelessly transmitted voice signal is received by the wireless receiving means 42, and is
combined with the other voice signal input to the second input means 12 by the combining
means 14, and the combined voice signal is output via the output means 15. Output to the
listener's ear. According to the third headphone device 40 having such a configuration, since the
wireless transmission means 41 and the wireless reception means 42 are provided, the first input
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means 11, the first localization means 13 and the wireless transmission means 41 are provided.
And the second input means 12, the combining means 14, the output means 15 and the wireless
receiving means 42 can be separated in place. For example, the third headphone device 40
includes a signal processing unit including the first input unit 11, the first localization unit 13
and the wireless transmission unit 41, the second input unit 12, the wireless reception unit 42,
the combining unit 14 and the output unit 15. And a headphone unit, and the signal processing
unit and the headphone unit can be separated from each other. As a result, for example, it
becomes possible to adopt different power supply systems for the signal processing unit
including the first localization means 13 with relatively high power consumption and the
headphone unit with relatively low power consumption. Further, it is also possible to realize the
signal processing unit with a general purpose computer and realize the headphone unit as a
compact headphone. A second localization unit may be added to the third headphone device 40
in substantially the same manner as the second headphone device 30. Fourth Embodiment A
fourth embodiment of the present invention will be described with reference to FIG. FIG. 10 is a
headphone device according to a fourth embodiment of the present invention (hereinafter, this is
referred to as a “fourth headphone device”.
) Is shown. As shown in FIG. 10, the fourth headphone device 50, like the first headphone device
10, comprises a first input unit 11, a second input unit 12, a first localization unit 13, a
combining unit 14 and an output unit. It has fifteen. Furthermore, the fourth headphone device
50 receives the wireless transmission means 51 for wirelessly transmitting the audio signal
synthesized by the synthesizing means 14 and the audio signal wirelessly transmitted by the
wireless transmission means 51, and outputs this audio signal to the output means. And a
wireless receiving means 52 for supplying. The wireless transmission means 51 and the wireless
reception means 52 can be configured similarly to the wireless transmission means 41 and the
wireless reception means 42, respectively. As a result, the audio signal input to the first input
unit 11 and the audio signal whose sound image is localized by the first localization unit 13 and
the audio signal input from the second input unit 12 are synthesized by the synthesis unit 14,
and then wirelessly It is wirelessly transmitted from the transmission means 51. The wirelessly
transmitted voice signal is received by the wireless receiving means 52 and output to the
listener's ear via the output means 15. According to the fourth headphone device 50 having such
a configuration, since the wireless transmission means 51 and the wireless reception means 52
are provided, the first input means 11, the second input means 12, the first localization means
13. A unit including the combining unit 14 and the wireless transmission unit 51 can be spatially
separated from a unit including the wireless reception unit 52 and the output unit 15. In
particular, according to the fourth headphone device 50, the headphone unit can be realized
more compactly than the third headphone device 40. Furthermore, if the signal input means to
the headphone unit is only the wireless receiving means 52, the headphone unit can be
completely wireless. A second localization unit may be added to the fourth headphone device 50
in substantially the same manner as the second headphone device 30. Fifth Embodiment A fifth
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embodiment of the present invention will be described with reference to FIG. FIG. 11 is a
headphone device according to a fifth embodiment of the present invention (hereinafter, this is
referred to as a “fifth headphone device”. ) Is shown. As shown in FIG. 11, the fifth headphone
device 60, like the first headphone device 10, comprises a first input unit 11, a second input unit
12, a first localization unit 13, a combining unit 14 and an output unit. It has fifteen.
Furthermore, the fifth headphone device 60 generates or reproduces an audio signal based on
the information recorded in the recording medium, and generates an audio generation unit 61
which supplies this to the first input unit 11, and an audio received from the communication
network And network receiving means for supplying a signal to the second input means 12.
As a result, the audio signal generated or reproduced based on the information recorded on the
recording medium is localized to the listener by the first localization means 13 and supplied to
the synthesizing means. On the other hand, the voice signal received from the communication
network is directly supplied from the second input unit 12 to the combining unit 14. Then, the
synthesizing means 14 synthesizes these audio signals and supplies the synthesized audio signal
to the output means 15. Therefore, since the sound image of the sound reproduced from the
recorded information is localized outside the head of the listener and the sound image of the
sound received from the communication network is localized in the head of the listener, the
listener clearly identifies these sounds. Can be heard. A second localization unit may be added to
the fifth headphone device 60 in substantially the same manner as the second headphone device
30. As a result, the sound image of the sound received from the communication network can be
localized not only in the head of the listener but also at an arbitrary position different from the
sound image of the sound reproduced from the recording medium. The recording medium
includes a recording disk, a hard disk, a semiconductor memory, and the like. A second
localization unit may be added to the fifth headphone device 60 in substantially the same manner
as the second headphone device 30. Sixth Embodiment A sixth embodiment of the present
invention will be described with reference to FIG. FIG. 12 is a headphone device according to the
sixth embodiment of the present invention (hereinafter, this is referred to as a “sixth headphone
device”. ) Is shown. As shown in FIG. 12, the sixth headphone device 70 is, like the first
headphone device 10, a first input unit 11, a second input unit 12, a first localization unit 13, a
combining unit 14 and an output unit. It has fifteen. Furthermore, the sixth headphone device 70
is integrally provided with a microphone 71 for inputting the voice of the listener with the output
means 15 in place, and a microphone voice for outputting the voice signal outputted from the
microphone 71 to the outside An output unit 72 is provided. Thus, so-called headphones with a
microphone can be realized, and the recipient can input his own voice to the microphone 71
while listening to the voice input to the first input unit 11 and the second input unit 12. . If the
voice signal output from the microphone output means 72 is supplied to, for example, another
listener and the voice is made to be audible to the other listener, conversation between the
listeners can be realized. A second localization unit may be added to the sixth headphone device
70 in substantially the same manner as the second headphone device 30.
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Seventh Embodiment A seventh embodiment of the present invention will be described. FIG. 13 is
a headphone device according to a seventh embodiment of the present invention (hereinafter,
this is referred to as a “seventh headphone device”. ) Is shown. As shown in FIG. 13, the
seventh headphone device 80, like the sixth headphone device 70, includes the first input unit
11, the second input unit 12, the first localization unit 13, the combining unit 14, and the output
unit. A microphone 71 and a microphone sound output unit 72 are provided. The seventh
headphone device 80 further includes a network transmission means 81 for transmitting the
audio signal output from the microphone audio output unit 72 to the communication network. As
a result, the voice of the listener becomes an audio signal by the microphone 71 and is
transmitted to the communication network via the microphone output means 72 and the network
transmission means 81. For example, if this audio signal is supplied to other listeners via a
communication network so that the audio can be heard by the other listeners, they are far away
from each other via the communication network. A conversation between listeners can be
realized. A second localization means may be added to the seventh headphone device 80 in
substantially the same manner as the second headphone device 30. Eighth Embodiment A
headphone device according to an eighth embodiment of the present invention will be described.
The headphone device according to the eighth embodiment of the present invention is one in
which any one of the first headphone device 10 to the seventh headphone device 80 described
above is applied to a game device, and in this case, it is inputted to the first input means 11. The
voice signal is a game sound, and the voice signal input to the second input means 12 is the voice
of the game player. That is, the game apparatus is, for example, a home-use game apparatus, and
usually, the game apparatus is connected to a television, executes a game program in the game
apparatus, and displays a video generated or reproduced thereby by the television And output
the sound to a speaker provided on the television. However, when the headphone device
according to the embodiment of the present invention is applied to such a game device, an audio
signal corresponding to the game sound generated and reproduced in the game device is input to
the first input means 11. And the voice signal corresponding to the voice of the game player
(usually another game player such as a game opponent or a game participant) is connected to be
input to the second input means 12.
Thereby, the game sound is localized by the first localization means 13 outside the head of the
listener (main game player), and the voice of the game opponent or the game participant is
localized in the head of the listener. it can. Thus, the listener can clearly distinguish between the
game sound and the game opponent or the voice of the game participant. When the game
headphone device according to the embodiment of the present invention is applied to an online
game device with a voice communication function, the game sound is localized outside the head
of the listener (main game player) to communicate The voice of the game opponent or game
participant transmitted through the network can be localized in the listener's head. As a result,
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even if the listener hears the game sound and the voice of the other party at the same time
through the headphones, the listener can clearly hear the game sound and the voice of the other
party. Therefore, for example, even in an environment where the game sound can not be loudly
emitted toward the room, if the game headphone device according to the embodiment of the
present invention is used, the game by the online game device with the voice communication
function is fully utilized. It can be enjoyed. Embodiments of the present invention will be
described below with reference to the drawings. The following embodiment is an example in
which the headphone device of the present invention is applied to a game system. First
Embodiment A first embodiment of the present invention will be described with reference to
FIGS. 14 to 16. FIG. First, a game system including the headphone device according to the first
embodiment of the present invention will be described. FIG. 14 shows a game system including
the headphone device according to the first embodiment of the present invention. As shown in
FIG. 14, the game system includes a game device 100, a game controller 110, a television 120,
and a headphone device 130. The game device 100 is an online game device with a voice
communication function. The game device 100 includes, for example, a disk drive, a CPU, a
memory, a decoder, an Internet communication interface, and the like. The game device 100
reads a game program, audio information corresponding to a game sound, video information
corresponding to a game video, etc. recorded on a DVD-ROM disc or the like, and executes or
reproduces them. Further, the video output terminal of the game apparatus 100 is connected to
the video input terminal of the television 120, and the reproduced video is displayed on the
display of the television 120.
Furthermore, the Internet communication interface of the game device 100 is connected to the
Internet. Thus, the game device 100 can bidirectionally transmit and receive information and the
like regarding the game via the Internet. In particular, the game device 100 can transmit an
audio signal of the player's voice to the Internet, and another player (e.g., a player who enjoys a
game by connecting another online game device with a voice communication function to the
Internet) An audio signal of the game opponent's or game participant's voice may be received via
the Internet. Hereinafter, the player of the game apparatus 100 is referred to as a “main
player”, and the other player who enjoys the game by connecting another online game device
with a voice communication function to the Internet is referred to as a “counter player”.
Furthermore, the game sound output terminal of the game device 100 is connected to the signal
processing unit 140 of the headphone device 130. Thereby, the game device 100 outputs an
audio signal corresponding to the reproduced game sound to the signal processing unit 140. In
the present embodiment, the game apparatus 100 reproduces game sound of 5-channel
surround sound, and outputs an audio signal corresponding thereto to the signal processing unit
140 as a digital signal. Furthermore, the controller 110 is connected to the controller terminal of
the game apparatus 100. The controller 110 is provided with several switches 110A and several
slider-type knobs 110B, etc. When the player operates these switches 110A or the volume 110B,
the control signal corresponding to the operation becomes the controller 110. Is input to the
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game apparatus 100 or the like. Further, the connection between the game apparatus 100 and
the controller 110 includes not only a line for transmitting and receiving such control signals but
also a line for transmitting and receiving audio signals. The game device 100 outputs an audio
signal of the voice of the other player received via the Internet to the headphone unit 150 of the
headphone device 130 via the controller 110. Furthermore, the game apparatus 100 receives an
audio signal of the player's voice input from the microphone 156 of the headphone unit 150 via
the controller 110. Then, the game device 100 transmits the received voice signal to the Internet
via the Internet communication interface.
The transmitted voice of the player is sent to the other player enjoying the game at the same
time. As a result, the player can enjoy the game while talking (voice communication) with the
other player. The audio signals of the voices of the player and the other player are monaural
audio signals. Also, the voice signal of the voice of the opponent player is a digital signal at the
stage of being received from the Internet. The game device 100 supplies this audio signal in the
form of a digital signal to the headphone unit 150 via the controller 110. On the other hand,
although the voice signal of the player's voice is an analog signal at the stage output from the
microphone 156, it is converted into a digital signal inside the headphone unit 150 and input to
the game apparatus 100 via the controller 110. . The game device 100 transmits this audio
signal in the form of a digital signal to the Internet. Next, the headphone device 130 will be
described. As shown in FIG. 14, the headphone device 130 includes a signal processing unit 140
and a headphone unit 150. The signal processing unit 140 and the headphone unit 150 are
spatially separated from each other. However, between the two, audio signals can be transmitted
and received via infrared rays. Various circuits and the like constituting the signal processing
unit 140 are housed in a box-like case 144. On the other hand, the headphone unit 150 is
provided with a left speaker unit 154, a right speaker unit 155, a microphone 156, a headband
158 connecting the speaker units 154 and 155, and the like as elements forming the
appearance. The microphone 156 is integrally provided with the speaker units 154 and 155 and
the like. The various circuits and the like constituting the headphone unit 150 are disposed, for
example, in the speaker units 154 and 155. FIG. 15 shows the detailed configurations of the
signal processing unit 140 and the headphone unit 150 together with the connection
relationship with the game apparatus 100 and the like. As shown in FIG. 15, the signal
processing unit 140 includes a game sound input unit 141, a signal processing unit 142, and an
infrared transmission unit 143. The game sound input unit 141 is a connection circuit that
receives an audio signal of a game sound reproduced by the game apparatus 100 and output
from the game sound output terminal of the game apparatus 100 and supplies this to the signal
processing unit 142. .
The audio signal of the game sound output from the game sound output terminal of the game
device 100 is a 5-channel digital signal. Therefore, the game sound input unit 141 includes a
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connection terminal for digital signal input. The game sound input unit 141 supplies the audio
signal of the input game sound to the signal processing unit 142 in the form of digital signals of
five channels. The signal processing unit 142 is a digital signal processing circuit that localizes
the sound image of the digital audio signal of five channels at a predetermined position outside
the head of the player. More specifically, the signal processing unit 142 first receives an audio
signal of the game sound supplied from the game sound input unit 141. Next, for the player of
this device equipped with the headphone unit 150 which is basically a two-channel stereo
headphone, the signal processing unit 142 sets the first channel of the game sound of the five
channels to the left of the player's front direction. Out-of-head sound image localization setting is
performed so that the second channel is localized at the front center, the third channel at the
front right, the fourth channel at the left side, and the fifth channel at the right side. Such a signal
processing circuit can be realized, for example, by providing ten filters set with filter coefficients
based on an appropriate transfer function for realizing sound image localization as described
above. Also, these filters can be formed by DSP. Next, the signal processing unit 142 distributes /
consolidates, distributes / consolidates the sound signal of the game sound for which the out-ofhead sound image localization is set, to a 2-channel line so that the out-of-head sound image
localization can be realized. The audio signal of the channel is supplied to the infrared
transmission unit 143 in the state of a digital signal. The infrared transmitting unit 143 is an
infrared wireless transmitter. The infrared transmission unit 143 converts the sound signal of the
game sound supplied from the signal processing unit 142 into an infrared signal, and transmits
the infrared signal to the headphone unit 150. The headphone unit 150 includes an infrared
receiving unit 151, a headphone input unit 152, a combining circuit 153, a left speaker unit 154,
a right speaker unit 155, a microphone 156, and a microphone output unit 157. The infrared
receiver 151 is an infrared wireless receiver. The infrared receiving unit 151 receives the
infrared signal transmitted from the infrared transmitting unit 143, converts it, and restores an
audio signal of the game sound.
Then, the infrared receiving unit 151 supplies the sound signal of the game sound to the
combining circuit 153 in the form of digital signals of two channels. The headphone input unit
152 is a connection circuit that receives an audio signal of the voice of the opponent player
supplied from the game apparatus 100 via the controller 110 and supplies the audio signal to
the synthesis circuit 153. The voice signal of the voice of the opponent player supplied from the
game device 100 is a monaural signal and is a digital signal. Therefore, the headphone input unit
152 includes a connection terminal for digital signal input. The headphone input unit 152
supplies the voice signal of the voice of the opponent player who has been input in the form of a
monaural digital signal to the synthesizing circuit 153. The synthesis circuit 153 is a digital
signal synthesis circuit that synthesizes the voice signal of the game sound supplied from the
infrared receiving unit 151 and the voice signal of the voice of the opponent player supplied
from the headphone input unit 152. More specifically, the sound signal of the game sound is two
channels, the sound signal of the voice of the opponent player is one monaural channel, and the
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output of the synthesis circuit 153 is two channels. A voice audio signal is distributed to two
channels, and each distributed audio signal is added to each channel of the game sound audio
signal. Then, the synthesized voice signal of two channels obtained as a result is subjected to
digital-to-analog conversion, and is output to the left speaker unit 154 and the right speaker unit
155, respectively. The left speaker unit 154 outputs the audio signal of one channel supplied
from the synthesis circuit 153. The right speaker unit 155 outputs the audio signal of the other
channel supplied from the synthesis circuit 153. As a result, the audio signal reaches the right
ear and the left ear of the player, respectively. The microphone 156 is a microphone for inputting
the voice of the player of the present apparatus. The microphone output unit 157 performs
analog-digital conversion on the voice signal of the player's voice input via the microphone 156,
and supplies this to the game apparatus 100 via the controller 110. A line may be added to
supply to the headphone input unit 152 an audio signal of the voice of the player of the present
machine output from the microphone output unit 157. According to the headphone device 130
having such a configuration, as shown in FIG. 16, the game sound is set to the outside sound
image localization by the signal processing unit 142, so the main unit with the headphone unit
150 attached. The localization is performed on the left side in the front direction of the player M,
the center in the front direction, the right side in the front direction, the left side in the lateral
direction, and the right side in the lateral direction.
On the other hand, the voice of the opponent player is distributively output as two monaural
signals without being subjected to any sound image localization processing, so the player M is
naturally localized in the head of the player M. Therefore, even when the game sound and the
voice of the other player are simultaneously output from the speaker units 154 and 155 of the
headphone unit 150, the player of the present apparatus can clearly hear both sounds. In
addition, since the player of this apparatus listens to the game sound and the voice of the other
player through the headphone unit 150, even if the volume of these sounds is increased, a large
sound is not transmitted to the outside. Further, according to the headphone device 130, since
the sound image of the sound signal of the game sound is localized at five positions surrounding
the player of the player, it should be reproduced by using five speakers. The sound field of the
channel surround game sound can be basically reproduced by the headphone unit 150 of a twochannel stereo. As a result, the player can experience the same realism as when the game sound
is released from the five speakers into the room while wearing the headphone unit 150.
Furthermore, since the headphone device 130 is spatially separated into the signal processing
unit 140 and the headphone unit 150, it is advantageous in the following points. That is, when
the power supply of the signal processing unit 140 is supplied from a household outlet and the
power supply of the headphone unit 150 is supplied from a battery, the signal processing unit
142 with relatively large power consumption is disposed on the signal processing unit 140 side.
Therefore, the battery life of the headphone unit 150 can be extended. Further, by disposing the
signal processing unit 142 or the like in the signal processing unit 140, the headphone unit 150
can be made compact or lightweight. Further, according to the headphone device 130, since the
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microphone unit 156 and the like are integrally provided in the headphone unit 150, the player
of the present apparatus can control his / her voice while operating the controller 110 with both
hands. It can be easily input to the side. Thereby, voice communication while playing a game can
be realized. Second Embodiment A second embodiment of the present invention will be described
with reference to FIG. In the second embodiment described below, the same components as those
in the first embodiment are denoted by the same reference numerals and the description thereof
will be omitted.
FIG. 17 shows the headphone device according to the second embodiment of the present
invention, as well as the connection relationship with the game apparatus 100 and the like. As
shown in FIG. 17, the headphone device 200 according to the second embodiment includes a
signal processing unit 210 and a headphone unit 220. The signal processing unit 210 and the
headphone unit 220 are spatially separated. However, between the two, audio signals can be
transmitted and received via infrared rays. The external appearance of each of the signal
processing unit 210 and the headphone unit 220 is substantially the same as the signal
processing unit 140 and the headphone unit 150 shown in FIG. 14, but the headphone unit 220
is more compact and lighter than the headphone unit 150. It is. Furthermore, as shown in FIG.
14, the headphone unit 150 is connected to the controller 110 via a cord, but the headphone
unit 220 is completely wireless. As shown in FIG. 17, the signal processing unit 210 includes a
game sound input unit 141, a signal processing unit 142, a synthesis circuit 153, an infrared
transmission unit 143 for game sound, a headphone input unit 152, and an infrared reception
for a microphone. A unit 211 is provided. Although these components are different in
arrangement except for the infrared receiver 211, their substantial internal structure is the same
as that of the headphone device 130 according to the first embodiment. The infrared receiver
211 for the microphone is an infrared wireless receiver. The infrared receiving unit 211 receives
an infrared signal corresponding to the voice signal of the player's voice transmitted from the
headphone unit 220, converts the signal into a voice signal, and supplies the voice signal to the
game apparatus 100. On the other hand, the headphone unit 220 includes an infrared receiver
151 for game sound, a left speaker unit 154, a right speaker unit 155, a microphone 156, a
microphone output unit 157, and an infrared transmitter 221 for the microphone. Although
these components are different in arrangement except for the infrared transmission unit 221,
their substantial internal structure is the same as that of the headphone device 130 according to
the first embodiment. The infrared ray transmitter 221 for microphone is a wireless transmitter
of infrared ray system. The infrared transmission unit 221 converts an audio signal of the
player's voice input via the microphone 156 and the microphone output unit 157 into an
infrared signal, and transmits the infrared signal to the signal processing unit 210.
In the headphone device 200, not only the voice signal of the game sound output from the game
apparatus 100, but also the voice signal of the voice of the opponent player is supplied to the
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signal processing unit 210 side. Further, the audio signal after being synthesized by the synthesis
circuit 153 in the signal processing unit 210 is converted into an infrared signal by the infrared
transmission unit 143, and is transmitted to the headphone unit 220. Then, in the headphone
unit 220, the infrared signal transmitted from the signal processing unit 210 is received by the
infrared receiving unit 151, converted into an audio signal, and output to the speaker units 154
and 155, respectively. Further, in the headphone device 200, an audio signal of the voice of the
player of the player is also converted into an infrared signal by the infrared transmission unit
221 in the headphone unit 220, and is transmitted to the signal processing unit 210. Then, in the
signal processing unit 210, this infrared signal is received by the infrared receiving unit 211,
converted into an audio signal, and output to the game apparatus 100. According to the
headphone device 200 having such a configuration, as in the headphone device 130 according to
the first embodiment, the sound image of the game sound is localized outside the head of the
player of this machine, and the sound image of the voice of the other player Can be localized in
the player's head. As described above, by separating the sound image of the game sound and the
sound image of the voice of the other player at different positions, the player of the present
apparatus can simultaneously receive the game sound and the voice of the other player from the
speaker units 154 and 155 of the headphone unit 150. Even when output, both voices can be
clearly distinguished. In particular, according to the headphone device 200, the infrared receiver
151 and the infrared transmitter 221 are disposed in the headphone unit 220, and both the
input of the game sound and the output of the player's voice are wirelessly transmitted. Since the
configuration is performed, the headphone unit 220 can be completely wireless. This makes it
easier for the player to move. Furthermore, according to the headphone device 200, the number
of circuits and the like disposed in the headphone unit 200 is reduced, so that the headphone
unit 200 can be further miniaturized, reduced in weight, and saved in power. In the headphone
device 130, means for changing the position of the game sound or the sound image of the other
player's voice may be added.
For example, the filter coefficient set for each filter in the signal processing unit 142 can be
changed, and the sound image of the game sound can be adjusted to move in the direction away
from or closer to the player of the player, and the adjustment knob In the case 144 of the signal
processing unit 140 or the like. The same applies to the headphone device 200. In addition, in
the headphone device 130, means for increasing or decreasing the volume of the game sound or
the voice of the opponent player may be added. For example, a circuit for increasing or
decreasing the volume is provided between the output of the signal processing unit 142 and the
input of the synthesis circuit 153, and the volume control knob electrically connected thereto is
used in the case 144 of the signal processing unit 140 and the headphone unit 150. The speaker
unit 154 or 155 is provided. For example, as the volume control knob, the knob 110B of the
controller 110 or the knob 155A provided on the right speaker unit 155 may be used. The same
applies to the headphone device 200. The headphone unit 150 may not be of the type in which
the speaker unit 154 and the speaker unit 155 are connected by the head band 158. For
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example, a band connecting the speaker units may be disposed on the back side of the neck, or
there may be no band connecting the speaker units, so each speaker unit may be attached
directly to the listener's ear It may be The same applies to the headphone unit 220. Further, the
present invention can be appropriately modified without departing from the scope and spirit of
the present invention which can be read from the claims and the entire specification, and a
headphone device and a game headphone device with such a modification are also possible. It is
included in the technical idea of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram showing a configuration of a headphone device according to a first
embodiment of the present invention. FIG. 2 is an explanatory view showing an out-of-head
sound image localization technique. FIG. 3 is a circuit diagram showing a circuit for realizing an
out-of-head sound image localization technique. FIG. 4 is an explanatory view showing an out-ofhead sound image localization technique. FIG. 5 is an explanatory view showing a state in which
a sound image is localized outside the head and inside the head of the listener. FIG. 6 is an
explanatory view showing a state in which a sound image is localized outside the head and inside
the head of the listener. FIG. 7 is an explanatory view showing a state in which a sound image is
localized outside the head and inside the head of the listener. FIG. 8 is a block diagram showing
the configuration of a headphone device according to a second embodiment of the present
invention.
FIG. 9 is a block diagram showing the configuration of a headphone device according to a third
embodiment of the present invention. FIG. 10 is a block diagram showing the configuration of a
headphone device according to a fourth embodiment of the present invention. FIG. 11 is a block
diagram showing the configuration of a headphone device according to a fifth embodiment of the
present invention. FIG. 12 is a block diagram showing the configuration of a headphone device
according to a sixth embodiment of the present invention. FIG. 13 is a block diagram showing the
configuration of a headphone device according to a seventh embodiment of the present
invention. FIG. 14 is an external view showing a game system including the headphone device
according to the first embodiment of the present invention. FIG. 15 is a block diagram showing
the configuration of the headphone device according to the first embodiment of the present
invention, as well as the connection relationship with the game device and the like. FIG. 16 is an
explanatory view showing a state in which the sound image of the game sound and the sound
image of the voice of the opponent player are separately separated and localized; FIG. 17 is a
block diagram showing a configuration of a headphone device according to a second
embodiment of the present invention, as well as a connection relationship with a game device or
the like. [Description of the code] 10, 30, 40, 50, 60, 70, 80, 130 ... headphone device 11 ... first
input means 12 ... second input means 13 ... first localization means 14 ... synthesis means 15 ...
output means 31 ... second localization means 41, 51 ... radio transmission means 42, 52 ... radio
reception means 61 ... voice generation means 62 ... network reception means 71, 156 ...
microphone 72 ... microphone sound output means 81 ... network transmission means 100 ...
game device 110 ... controller 140, 210 ... signal processing unit 141 ... game sound input unit
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142 ... signal processing unit 143 ... infrared transmission unit 151 ... infrared reception unit 152
... headphone input unit 153 ... combining circuit 150, 220 ... headphone unit 154, 155 ... speaker
Unit 157 ... Microphone output unit
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