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JP2005192004

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Notice
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
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DESCRIPTION JP2005192004
PROBLEM TO BE SOLVED: To make it possible to surely respond to a call from a third party or
ringing of a telephone, a door intercom or the like while listening to music using a headset.
SOLUTION: Music data inputted from an external device (personal computer 2) for reproducing
music is outputted to speaker units 101 and 102 to enable music appreciation. The voice from
the voice is recognized by the voice recognition unit 116, and as a result of the recognition, when
a specific keyword, a voiceprint of a specific person, or a sound of a certain level or more is
detected for a certain time or more, A process (mute process) of stopping the output of the music
data to 102 is executed. [Selected figure] Figure 3
Method of controlling playback of headset and headset music data
[0001]
The present invention relates to a headset for reproducing music data transmitted from a music
reproducing apparatus or the like, which controls reproduction of a music signal in response to
an external sound or the like, and a reproduction control method of the music signal.
[0002]
In recent years, Bluetooth (R) has attracted attention as a wireless communication technology.
Bluetooth (R) is a low-cost, low-power-consumption, near-field wireless communication
technology suitable for mobile devices, and is used to wirelessly connect mobile devices owned
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by individual users. Since the mobile devices are wirelessly connected, the devices can be
connected freely and easily as compared with the conventional wired connection.
[0003]
Furthermore, the application of Bluetooth (R) has been studied in various fields, and the
application to AV devices such as music playback devices has also started.
[0004]
Considered as one of the applications to this AV device is wireless data transmission to voice data
to a wireless headset.
In this case, by connecting the wireless headset with a music reproduction device such as a
portable music player, a conventional connection cable is not required, and a more comfortable
audio reproduction environment is expected (for example, Patent Document 1). Japanese Patent
Application Laid-Open No. 2002-112383
[0005]
Such a wireless device receives compressed music data mainly transmitted from a music
reproducing apparatus serving as a short distance wireless communication apparatus such as
Bluetooth (R), and decodes and reproduces the received music data. Enables music appreciation.
Further, by operating an operation button provided on the headset, a command to perform
reproduction control such as music reproduction, pause, fast forward, rewind and the like is
wirelessly transmitted to the music reproduction apparatus, whereby this music reproduction
apparatus Control of the
[0006]
However, conventional headsets often do not notice even if someone outside is invited while the
user is listening to music while wearing the headset. In addition, when listening to music using a
headset at home, if the volume of the music you are watching with the headset is relatively high,
you may hear a ringer on the phone or in the front door. In some cases, the user may not be
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aware of it, may not receive a response, and may cause inconvenience to the user.
[0007]
Therefore, according to the present invention, even when a user listens to music using a headset,
if a third party is called by a third party or if a telephone or a door interphone at a front door
rings, the response can be reliably made. It is an object of the present invention to provide a
headset and a method of controlling playback of music data of the headset.
[0008]
In order to achieve the above object, in the headset according to the present invention, a speaker
unit, output means for reproducing music data input from an external device and outputting the
data to the speaker unit, and detection means for detecting an external sound When the music
data is output to the speaker unit by the output unit, if the detection unit detects a sound from
the outside, the detected sound is recognized, and the recognition result is displayed. Based on
the above, when the predetermined condition is satisfied, the apparatus further comprises:
control means for executing a process of stopping the output of the music data from the output
means to the speaker unit.
[0009]
Further, in the method of controlling reproduction of music data of a headset according to the
present invention, when music data input from an external device is output to a speaker unit and
the music data is output to the speaker unit, external sound is output. When the detected sound
is recognized, the output of the music data to the speaker unit is stopped when a predetermined
condition is satisfied based on the recognized result. It is.
[0010]
In the headset according to the present invention, even when the user is listening to music using
the headset, when the sound of the specific content, voiceprint or level is detected, the mute
processing of the music reproduction is performed accordingly. Run.
Therefore, even while listening to music, it is possible to reliably respond to a necessary call from
the outside.
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[0011]
Hereinafter, embodiments of the present invention will be described with reference to the
drawings.
[0012]
FIG. 1 is a block diagram showing a wireless communication system using a headset 1 according
to an embodiment of the present invention.
In the configuration diagram shown in FIG. 1, the personal computer 2 is the connection
destination of the headset 1.
[0013]
The headset 1 executes, for example, wireless communication conforming to the Bluetooth (R)
standard, and can perform data communication and the like with an electronic device having a
wireless communication function conforming to the Bluetooth (R) standard.
The personal computer 2 is provided with a communication unit that performs wireless
communication by Bluetooth (R), wireless connection is established between the headset 1 and
the personal computer 2, and data transmission / reception is performed.
[0014]
Also, the headset 1 is provided with the Advanced Audio Distribution Profile (A2DP) Sink
function and the Audio Video Remote Control Profile (AVRCP) CT function.
[0015]
A2DP's Sink function is a function as a transfer destination device in streaming reproduction of
audio data such as music, and is used to receive and play a stream of audio data sent by wireless
signal.
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Also, the CT function of the AVR is a function as a control side device in remote control, and is
used to transmit a remote control signal to a controlled side device by a wireless signal.
[0016]
On the other hand, the personal computer 2 has a source function of A2DP and a TG function of
AVRCP.
The source function of A2DP is a function of a destination device in streaming reproduction, and
is used to transmit a stream of audio data by a wireless signal. For example, the personal
computer 2 is installed with an application program having a music reproduction function, and
performs streaming transmission of music data through a wireless connection (link) for A2DP
established with the headset 1.
[0017]
The TG function of the AVR CP is a function as a controlled device in remote control, and for
example, starts and stops streaming reproduction based on a remote control signal transmitted
from the controlled device by a wireless signal.
[0018]
The wireless communication between the headset 1 having the functions as described above and
the personal computer 2 will be specifically described. A wireless connection is made via the
antennas 107 and 108 mounted on each device to transmit and receive data. Do.
[0019]
Here, according to the AV profile of Bluetooth (R), the audio data transmitted by streaming is
received by the headset 1 having the sink function of A2DP from the personal computer 2 having
the source function of A2DP using the transport channel. Thus, music can be viewed on the
headset 1.
[0020]
Also, a remote control signal is transmitted from the headset 1 having AVRCP CT function, and
this remote control signal is received by the personal computer 2 having the AVRCP TG function,
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so that the remote control from the headset 1 is performed by It is possible to perform
operations such as playback start, stop, pause, fast forward, and rewind on the music playback
application being operated on the personal computer 2.
[0021]
Next, the configuration of the headset 1 according to an embodiment of the present invention
will be described with reference to FIG.
[0022]
The headset 1 outputs audio data transmitted by a wireless signal from a personal computer 2 or
the like and an external device, and includes speaker units 101 and 102, a headband 103, and a
microphone 105.
[0023]
The speaker units 101 and 102 are for outputting, for example, audio data transmitted from the
personal computer 2, and are provided at both ends of the head band 103.
In a state where the headset 1 is worn on the head of the user, the speaker units 101 and 102
are attached so as to cover the right ear and the left ear, respectively.
[0024]
The headband 103 is used when worn on the head of the user who uses the headset 1.
[0025]
The microphone 105 is a nondirectional input device for inputting voice from the outside, and is
provided extending from the speaker unit 102.
[0026]
Furthermore, the headset 1 has an operation switch 106 for inputting an instruction operation
such as music reproduction by the user, and an antenna attached to the headband 103 for
performing wireless communication with the personal computer 2 as an external device. And
107 are provided.
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[0027]
Next, the system configuration of the headset 1 will be described with reference to FIG.
[0028]
As shown in FIG. 3, the headset 1 includes a system control unit 111, a memory 112, a wireless
communication device 113, an audio input unit 114 and an audio in addition to the speaker units
101 and 102, the microphone 105, the operation switch 106 and the antenna 107. And an
output unit 115.
[0029]
The system control unit 111 is a processor for controlling the operation of the headset 1 and
controls the wireless communication device 113, the voice input unit 114, and the audio output
unit 115 by executing a program stored in the memory 112. .
Further, the system control unit 111 is provided with a voice recognition unit 116 that executes
the above-described voice recognition process and a process of obtaining a voice input level.
[0030]
The memory 112 is composed of a non-volatile memory device, and stores a program for
controlling the operation of the headset 1.
The program includes a routine for causing the system control unit 111 to execute the A2DP
Sink function, and a routine for causing the system control unit 111 to execute the AVRCP CT
function.
[0031]
The wireless communication device 113 is a device that executes wireless communication with
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the personal computer 2 in a procedure conforming to the Bluetooth (R) standard, and includes a
baseband processing unit and an RF unit.
The wireless communication device 113 is used to receive audio data such as music transmitted
by a wireless signal from the personal computer 2 or to transmit a remote control signal to the
personal computer 2 by a wireless signal.
[0032]
The voice input unit 114 converts the voice of the user input via the microphone 105 from an
analog signal into a digital signal, and transmits the digital signal to the system control unit 111.
Also, the audio output unit 115 receives a stream of audio data such as music transmitted from
the personal computer 2 via the wireless communication device 113 and the system control unit
111, and receives the received stream from the speaker units 101 and 102. Execute data
reproduction processing to convert into an electric signal that can be output.
The input gain of the audio input unit 114 and the output gain of the audio output unit 115 can
be adjusted by the system control unit 111.
[0033]
In the headset 1 having such a configuration, when wireless connection with the personal
computer 2 is established, streaming is transmitted from the personal computer 2 through the
A2DP connection of the wireless communication device 113 under the control of the system
control unit 111. The received music data is received by the wireless communication device 113
via the antenna 107, and is output from the audio output unit 115 to the speaker units 101 and
102.
[0034]
In addition, the user's operation instruction input through the microphone 105 and the voice
input unit 114 through the AVRCP connection executes recognition processing in the voice
recognition unit 116 of the system control unit 111, and the recognition result is used as a
remote signal. It is transmitted to the personal computer 2 via the communication device 113
and the antenna 107.
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[0035]
In the headset 1 according to the embodiment of the present invention configured as described
above, while the user is listening to music or the like using the headset 1, a call from the outside,
an interphone for a telephone or an entrance, etc. Even if it sounds, it is possible to easily check
the voice of the call or the sound of the telephone or intercom.
That is, the headset 1 according to the embodiment of the present invention has a function of
muting the music reproduction process being executed when recognizing a sound word or
voiceprint from the outside, or a volume higher than a certain bell. There is.
[0036]
Next, a method of controlling music reproduction in the headset according to the present
invention will be described with reference to the flowcharts shown in FIG. 4 to FIG.
(Process of recognizing specific keyword information and muting music reproduction) In the
headset 1 according to an embodiment of the present invention, the specific keyword
information is stored in the memory 112 of the headset 1, and this keyword information is
stored. When the same content is emitted from the outside, the process of muting the music
playback in progress is executed.
[0037]
FIG. 4 is a flowchart for explaining a processing method of muting music reproduction when
specific keyword information coming from the outside is recognized according to this
embodiment.
[0038]
According to this processing method, first, when music reproduction processing is executed in
the headset 1 (S20), a third party from the outside can hear the user listening to music using the
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headset 1. I asked him something to him.
In this case, in the headset 1, the voice that the third party has called the user is input from the
microphone 105 (S21).
The input third-party voice is passed to the voice recognition unit 116 via the voice input unit
114, and voice recognition processing is performed (S22).
[0039]
Here, as a result of the speech recognition process in the speech recognition unit 116, the
memory 112 of the headset 1 is collated in advance with the contents of the keyword
information to be a keyword for muting music reproduction (S23). When the stored keyword
information matches the content of the voice recognized by the voice recognition unit 116, the
recognition result is passed to the system control unit 111, and the system control unit 111
temporarily performs music reproduction processing by the audio output unit 115. It is stopped
(S24).
[0040]
If the keyword information stored in the memory 112 does not match the content of the third
party's voice recognized by the voice recognition unit 116 as a result of the collation processing
in the voice recognition unit 116, the system control unit 111 And the music output process by
the audio output unit 115 is continued.
[0041]
When a specific example will be described of the case where muting processing of the music
reproduction is performed, for example, previously set stores the information "Hello ○○ I" as a
keyword for muting the music playback in the memory 112 of the headset 1.
Accordingly, when the call of "Hello ○○ san" has been carried out from the outside from a third
party, in the head set 1, as a result of the recognition in the speech recognition unit 116, of the
same keywords and content that is stored in the memory 112 When it is recognized that the
content is emitted from a third party, the process of music playback is automatically muted once.
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Therefore, for a user who uses the headset 1 are listening to music, it is easy to respond for call
from a third party of the "Hello ○○-san".
[0042]
In addition, in this headset 1, when the conversation with a third party is ended in a state where
the music reproduction is in the mute state, and it is desired to execute the music reproduction
again, an instruction for music reproduction is inputted by the operation switch 106 Do.
In response to this instruction, the system control unit 111 resumes the audio output in the
audio output unit 115, and the music reproduction process is executed again.
[0043]
In addition, keyword information to be stored in the memory 112, does not have to be limited to
one thing called "Hello ○○-san", it may be allowed to register more than one keyword
information.
In this case, it becomes possible to cope with the contents of a plurality of calls from a third
party.
[0044]
By performing the processing as described above, in this headset 1, for example, when the user is
listening to music using the headset 1, a call from a third party (for example, a specific content) If
the "Hello ○○'s") have been made, automatically for music playback is muted, and can be easily
confirmed call from a third party.
[0045]
(Recognition of Specific Person and Mute Music Reproduction) Next, as a second embodiment of
the present invention, a process of muting music reproduction processing based on a voice
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emitted from a specific person will be described.
In this embodiment, a specific voiceprint is registered in advance in the headset 1, and a
voiceprint of a voice emitted from a specific party is analyzed, and when it matches the
registered voiceprint, the headset 1 is used. Execute processing to mute music playback.
[0046]
FIG. 5 is a flowchart for explaining the processing method of analyzing the voiceprint of the voice
emitted from the specific party which is this embodiment and muting the music reproduction
based on the analysis result of this voiceprint.
[0047]
According to this processing method, first, when music reproduction processing is executed in
the headset 1 (S30), the user who is listening to music using the headset 1 receives a third party
from the outside. Suppose that he made a voice to the user.
In this case, the voice called by the third party to the user is input to the headset 1 from the
microphone 105 (S31).
The input third-party voice is passed to the voice recognition unit 116 via the voice input unit
114, and voice recognition processing is performed (S32).
[0048]
Next, as a result of the speech recognition process, a collation process with a voiceprint for
muting music reproduction is performed in advance (S33).
As a result of the voice recognition process, when the specific voiceprint stored in the memory
112 matches the voiceprint of the voice input from the outside, the recognition result is passed
to the system control unit 111, and the system control unit 111 is Thus, the music reproduction
process by the audio output unit 115 is temporarily stopped (S34). By executing the above-
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described processing, in the headset 1 of the present invention, for example, voiceprint data of a
specific person is registered in advance in the memory 112 of the headset 1 and there has been a
call from the specific person. In the case, music playback is automatically muted. Therefore, the
user of the headset 1 can react to a call from a specific person while listening to music.
[0049]
Further, in this headset 1, as in the first embodiment, when the conversation with a specific
person ends in a state where music playback is muted, and it is desired to continue the music
playback again, the operation switch 106 By inputting the music reproduction instruction (S35),
the music reproduction process in the audio output unit 115 can be resumed based on the
control of the system control unit 111. The voiceprint data that can be registered in the memory
112 of the headset 1 need not be particularly limited to one, and multiple voiceprint data can be
registered at the same time. Make it possible to execute.
[0050]
(Recognizing audio input above the reference level for more than the reference time and muting
music playback) Further, as a third embodiment of the present invention, in the headset 1 of the
present invention, voice over the reference level is recognized for more than the reference time
In this case, it is possible to mute the music reproduction process.
[0051]
FIG. 6 is a flowchart for explaining this processing method, and a specific processing method will
be described using this figure.
[0052]
In the processing method shown in FIG. 6, for example, when the user is listening to music at
home using the headset according to the present invention (during the music reproduction
process) (S40), the telephone rings. Suppose that the interphone is sounded.
In this case, the voice of a telephone or an interphone is input to the headset 1 from the
microphone 105 (S41), and the input voice is passed to the voice recognition unit 116 via the
voice input unit 14, and voice input level acquisition processing is performed. Is executed.
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[0053]
In this headset 1, the voice level at the time of silence level is registered in advance in the
memory 112, and the voice level registered in the memory 112 is used as a reference level
(reference level for muting music reproduction) as a voice recognition unit. The voice level input
to 116 is compared (S42).
As a result of the comparison, when it is determined in the speech recognition unit 116 that
there is a speech input level higher than the reference level for muting music reproduction in
advance, the speech recognition unit 116 further outputs the inputted speech level. It is
determined whether or not the input is continued at the reference time (for example, 5 seconds)
or more and the reference level or more (S43).
[0054]
As a result, when it is determined that the voice input higher than the reference input level is
continuously input for the reference time or more, the system control unit 111 stops the audio
output of the audio output unit 115 and mutes the music reproduction. The process is executed
(S45). However, if the voice input level is not detected continuously for the reference time or
more, or if the voice input level above the reference is not detected, the music reproduction
process is continuously executed.
[0055]
Even in the case of this embodiment, with the headset 1 in a state where music playback is
muted, if it is desired to continue music playback again after responding to a call by a telephone
or interphone, the operation switch 106 By inputting the music reproduction instruction (S46),
the system control unit 111 can control the audio output unit 115 to resume the music
reproduction process.
[0056]
By performing the above processing, for example, when the user wears the headset 1 in a quiet
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room and is listening to music, the telephone in the room may ring or the chime of the entrance
may ring. When the voice input above the reference level is continuously detected for the
reference time or more, the music playback mute processing is automatically performed. Even
when the ringing sounds, the sound can be confirmed with certainty.
In the present embodiment, the reference level and reference time of voice input can be
arbitrarily set and changed.
[0057]
Further, in the processing methods of the first to third embodiments described above, when the
speaker units 101 and 102 are attached to the user's ear, an external sound is generated even
when the music reproduction is muted. It is difficult to hear.
[0058]
Therefore, in the headset 1 of the present invention, while the music reproduction is muted, the
system control unit 111 takes in the voice input from the microphone 105 through the voice
input unit 114 and passes the voice to the audio output unit 115. A function of outputting to the
speaker units 101 and 102 may be provided.
In this case, by selecting this function, the user can make the external sound more easily audible
by the speaker units 101 and 102 while the music reproduction is muted.
[0059]
(Mute Process of Music Reproduction Using Remote Control Command) Further, in the headset 1
of the present invention, the mute of music reproduction is performed on an external device
(personal computer 2) that performs music reproduction using the remote control command. It is
also possible to send processing instructions.
[0060]
FIG. 7 illustrates a process for instructing the personal computer 2 to execute a mute process of
music reproduction using a remote control command performed by the headset 1 according to
the fourth embodiment as a fourth embodiment. It is a flowchart.
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[0061]
As shown in this figure, the headset 1 executes an event monitoring process for temporarily
stopping music reproduction (S70).
The event monitoring process here is, for example, a process of specifying a keyword by speech
recognition process, a process of specifying a voiceprint by speech recognition process, or an
input level equal to or higher than a reference level, as described in the above embodiments. To
perform any of the processes for identifying
[0062]
By this monitoring process, it is determined whether or not an event for temporarily stopping
music reproduction has occurred in the headset 1 (S71), and if an event for temporarily stopping
has occurred, the headset 1 can Sends a PAUSE command to the AVR CP-TG of the personal
computer 2.
[0063]
By executing this process, the personal computer 2 receives the PAUSE command in the AVR CPTG, and temporarily suspends the music reproduction process being executed by the personal
computer 2.
By this process, it is possible to instruct the music transmission source to temporarily stop the
music reproduction while the mute process of the music reproduction is being performed by the
headset 1.
[0064]
Further, in the headset 1, after muting the music reproduction, when it is desired to execute the
music reproduction again, the music reproduction instruction is transmitted to the personal
computer 2 by inputting the reproduction instruction with the operation button 106 (The AVR
CP PLAY command is transmitted to the AVR CP-TG of the personal computer 2 under the
control of the system control unit 111), and music playback can be resumed from the point
where it was paused.
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[0065]
This process prevents the music reproduction process in the personal computer 2 from being
continued while the mute process for music reproduction is performed in the headset 1, and the
user of the headset 1 performs the mute process. However, after that, it is possible to continue to
listen to music from the time when the muting process is started.
[0066]
The present invention is not limited to the above-described embodiment, and various
modifications can be made without departing from the scope of the invention.
[0067]
For example, in the processes described in the first embodiment, the second embodiment and the
third embodiment, music playback is muted by different triggers, but all of them are combined to
combine all the functions. It is also possible to mount it in the headset 1 of the present invention.
[0068]
In the first, second, and third embodiments described above, the process of muting music
reproduction is performed in the inside of the headset 1, but the music reproduction is
performed in the headset 1 of the first embodiment, the second embodiment, and the third
embodiment. Processing for temporarily stopping music reproduction on the personal computer
2 side by transmitting the PAUSE command of AVRCP of the headset 1 to the personal computer
side as described in the fourth embodiment without executing the mute processing The same
effect can be obtained by executing.
[0069]
It is a block diagram of the radio | wireless communications system using the headset concerning
embodiment of this invention.
It is a figure which shows the structure of the headset of embodiment of this invention shown by
FIG.
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It is a block diagram which shows the circuit structure of the headset shown by FIG.
It is a flowchart which shows the processing content of one Embodiment of the mute process of
the music reproduction of the headset shown by FIG.
It is a flowchart which shows the processing content of 2nd Embodiment of the mute process of
the music reproduction of the headset shown by FIG.
It is a flowchart which shows the processing content of 3rd Embodiment of the mute process of
the music reproduction of the headset shown by FIG.
It is a flowchart which shows the processing content of 4th Embodiment of the mute process of
the music reproduction of the headset shown by FIG.
Explanation of sign
[0070]
DESCRIPTION OF SYMBOLS 1 ... Headset 2 ... Personal computer 101, 102 ... Speaker unit 103 ...
Headband 105 ... Microphone 106 ... Operation switch 107 ... Antenna 111 ... System control part
112 ... Memory 113 ... Wireless communication device 114 ... Audio input part 115 ... Audio
output Part 116 ... Speech recognition part
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