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DESCRIPTION JP2004312637

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DESCRIPTION JP2004312637
The present invention provides a voice input device capable of making it possible for a user to
reliably recognize whether recording is being performed reliably and which of a main-unit-side
microphone and an external microphone is currently working effectively. The IC recorder 20 as a
voice input device can be connected to a remote control microphone device 30 having a remote
control microphone 32 as an external microphone and a remote control side LED 33, and the IC
recorder 20 has a built-in microphone 1 and a built-in microphone. A changeover switch 17 to
which the output line of the microphone 1 or the remote control microphone 32 is connected, an
external jack 16 to which the remote control microphone device 30 is connected, and a body side
LED 7 are provided. When the remote control microphone 32 is not connected, the main body
side LED 7 is turned on, and sound recording by the built-in microphone 1 is performed. When
the remote control microphone 32 is connected, the remote control LED 33 is turned on, and
audio recording by the remote control microphone 32 is performed. [Selected figure] Figure 1
Voice input device
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
audio input device to which an external microphone can be connected. Conventionally, a
broadcasting apparatus disclosed in Japanese Patent Application Laid-Open No. 2002-176404
comprises a plurality of remote control microphones, a speaker unit disposed in a plurality of
broadcast areas, and a center unit for controlling voice input and output. Is a proposal relating to
a commercial broadcast apparatus having In this business-use broadcast apparatus, the audio
input from the remote control microphone is broadcasted by the speaker installed in the desired
broadcast area via the center unit. The remote control microphone is provided with a display unit
composed of an LED and an LCD, and the display unit displays whether or not broadcasting in a
target broadcast area is possible. Moreover, it is also possible to monitor a broadcast state via a
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monitor speaker separately from a display part. SUMMARY OF THE INVENTION However, in the
commercial broadcasting apparatus disclosed in the above-mentioned Japanese Patent
Application Laid-Open No. 2002-176404, the present voice output under the condition where a
plurality of microphones are used. To check whether broadcasting in the desired area is possible
or not, and does not indicate whether voice recording can be reliably performed. Also, it does not
inform the user whether any of the microphones are currently recordable. The object of the
present invention has been made in view of the above circumstances, and allows the user to
recognize whether recording is reliably performed and which one of the main microphone and
the external microphone is effectively working. It is an object of the present invention to provide
a voice input device that can According to a first aspect of the present invention, there is
provided a voice input device comprising: a built-in microphone provided on a main body of the
voice input device; a connection unit for connecting an external microphone; A selection means
for selecting one of a microphone and an external microphone connected to the connection
section; and a display means for displaying which one of the built-in microphone and the external
microphone is selected by the selection means The audio signal of either the built-in microphone
selected by the selection unit or the remote control microphone is input, and the display on the
side selected by the display unit is performed. A voice input device according to claim 2 of the
present invention is the voice input device according to claim 1, wherein the display means is a
main body when the built-in microphone is selected by the selection means. The first indicator
provided on the external microphone is activated, and when the external microphone is selected
by the selection means, the second indicator provided on the external microphone is activated.
【0007】 。 The voice input device according to a third aspect of the present invention is the
voice input device according to the second aspect, wherein the display means detects that an
external microphone is connected to the connection portion. , The second indicator is operated
for a predetermined time. The voice input device according to a fourth aspect of the present
invention is the voice input device according to the second aspect, wherein the display means
detects that the connection of the external microphone to the connection portion has been
released. In the case, the first indicator is operated for a predetermined time. The voice input
device according to claim 5 of the present invention is the voice input device according to claim
2, further comprising a recording medium for recording a voice signal inputted from the built-in
microphone or the external microphone. Means, and instruction means for instructing the start
of recording of the audio signal, the display means displaying the built-in microphone by the
selection means when the start of recording of the audio signal is instructed by the instruction
means When the first indicator is selected, the first indicator is activated, and when the start of
recording of the audio signal is instructed by the instruction means, the first external microphone
is selected by the selection means. Activate the 2 indicator. A voice input device according to a
sixth aspect of the present invention is the voice input device according to the fifth aspect,
wherein in the recording means, the external microphone is selected by the selection means, and
the recording is performed. When the connection of the external microphone to the connection
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unit is released, the recording is stopped. The voice input device according to claim 7 of the
present invention is the voice input device according to claim 5, further comprising receiving
means for receiving a control signal from the external microphone, and the recording The means
starts the recording when the recording start is instructed by the instructing means, or when the
control means for instructing the recording start from the external microphone is received by the
receiving means. The voice input device according to an eighth aspect of the present invention is
the voice input device according to the first aspect, wherein the selection means is automatic
when the external microphone is connected to the connection portion. Select the above external
microphone. The voice input device according to a ninth aspect of the present invention is the
voice input device according to the eighth aspect, wherein the selection means is configured to
disconnect the connection of the external microphone to the connection portion. Automatically
select the above internal microphone.
The voice input device according to claim 10 of the present invention is the voice input device
according to claim 9, further comprising a recording medium for recording an audio signal input
from the built-in microphone or the external microphone. Means, and holding means for holding
the selection result of the selection means when the recording is started, the selection means
connecting the external microphone to the connection portion during recording by the recording
means If the selection result held by the holding means indicates that the external microphone is
used at the start of the recording, the external microphone is selected and held by the holding
means. If the selection result indicates that the built-in microphone is used at the start of
recording, the built-in microphone is selected. According to an eleventh aspect of the present
invention, in the voice input device, the built-in microphone provided in the main body of the
voice input device, a connection unit for connecting an external microphone, the abovementioned built-in microphone, or the connection unit Selection means for selecting one of the
selected external microphones, recording means for recording an audio signal input from the
built-in microphone selected by the selection means or the external microphone on a recording
medium, and an audio input device The information display apparatus displays information on
the operation state of the apparatus using characters or symbols, and displays information
indicating that recording is in progress while recording by the recording means, and the
information display apparatus is separately disposed from the information display apparatus. An
indicator provided on the voice input device main body, which displays an indication that
recording is in progress, is provided only when the above recording is performed using the builtin microphone. Or the information display device displays that the audio signal input from the
built-in microphone selected by the selection means or the external microphone is being
recorded, and the recording is performed using the built-in microphone The indicator shows that
recording is in progress only when the operation is in progress. According to a twelfth aspect of
the present invention, in the voice input device according to the eleventh aspect, recording of an
audio signal input from the external microphone is performed by the recording means. When it is
on, control means is provided to control to activate an indicator provided on the external
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microphone. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the
present invention will be described with reference to the drawings. FIG. 1 is a block diagram of
an IC recorder as an audio input device according to a first embodiment of the present invention.
As shown in FIG. 1, the IC recorder 20 has a recorder main body 21 in which respective
constituent members to be described later are accommodated, and in the recorder main body 21,
a remote control microphone device 30 which is an external microphone device is provided. It is
detachable via a connection cord. The IC recorder 20 is a system control unit having a CPU which
controls the overall control of the IC recorder 20 and the control of the external microphone
device 30 as a component housed in the recorder main body 21. 6, a digital signal processor
(DSP) 5 that performs audio signal processing at the time of recording or reproduction, a built-in
microphone (built-in microphone, MIC) 1 built in the recorder main body 21, a built-in
microphone 1 or Switch, which is selection means for selecting one of the remote control
microphones 32, a microphone amplifier (AMP) 2 for amplifying an audio output signal of the
microphone, an LPF 4 which is an input-side low pass filter, and an A / D converter 4, D / A
converter 12, LPF 4 which is a reproduction side low pass filter, and an amplifier for amplifying
the reproduction audio signal. The word amplifier (AMP) 14, the speaker 15, the LCD display 10,
the LCD drive circuit 9 for driving the LCD display 10, and the body side LED 7 as a first
indicator that operates when the built-in microphone 1 is selected. , The recording medium 8
formed of a semiconductor memory, the operation switch group 11, and the external jack 16
which is a connection portion to which the remote control microphone device 30 which is an
external microphone device can be connected via the connection cord 34. . The remote control
microphone unit 30 controls the remote control microphone according to an instruction from the
system control unit 6 when the remote control microphone control unit 31, the remote control
microphone (remote control microphone) 32 which is an external microphone, and the remote
control microphone 32 are selected. The remote control side LED 33 of the second indicator
operated through the unit 31 and a connection cord for connecting the audio output signal of the
remote control microphone 32 to the IC recorder main body 21 side are provided. In the IC
recorder 20, the output end of the microphone 1 is connected to one of the contact points of the
changeover switch 17. The common side of the changeover switch 17 is connected to the input
end of the microphone amplifier 2, and the output end of the microphone amplifier 2 is
connected to the input end of the LPF 3. Further, the output end of the LPF 3 is connected to the
input end of the A / D converter 4. An output end of the A / D converter 4 is connected to an
input end of the digital signal processing unit 5, and an output end of the digital signal
processing unit 5 is connected to an input end of the D / A converter 12.
The output end of the D / A converter 12 is connected to the input end of the LPF 13, the output
end of the LPF 13 is connected to the input end of the power amplifier 14, and the output end of
the power amplifier 14 is It is connected to the input end. The built-in microphone 1 converts
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sound into an electrical signal. The microphone amplifier 2 amplifies the electric signal from the
built-in microphone 1 or the remote control microphone 32. Also, the LPF 3 or 13 cuts
unnecessary frequency bands to prevent the generation of noise. Further, the A / D converter 4
converts an input audio signal (analog signal) into a digital signal. The digital signal processing
unit 5 is controlled by the system control unit 6 and performs encoding processing of the audio
signal converted into a digital signal by the A / converter 4 at the time of recording, and at the
time of reproduction, the encoded audio Data decoding processing is performed, and the audio
data is output to the D / A converter 12. The D / A converter 12 converts an input digital signal
into an analog signal. The power amplifier 14 amplifies the audio signal, and the speaker 15
converts the audio signal into audio and emits it. The control signal lines of the recording
medium 8, the LCD drive circuit 9, the LCD display 10, and the operation switch group 11 are
connected to the system control unit 6, and a connection indicating the connection state of the
external jack 16 is further provided. A state detection signal line, and a switching signal line for
switching and controlling the changeover switch 17 are connected. Then, the system control unit
6 takes in the output of the built-in microphone 1 on the main body side or switches the output
of the remote control microphone 32 by switching the changeover switch 17 in addition to the
recording means for voice recording and the reproduction means for reproduction. A selection
control means (selection means) for controlling whether to take in is incorporated. Furthermore,
the system control unit 6 incorporates reception means for receiving a control signal from the
remote control microphone 32 via the external jack 16, and starts recording of an audio signal
from the remote control microphone 32 based on the reception signal of the reception means. It
incorporates instruction means to instruct. Furthermore, the lighting state of the main body side
LED 7 which is a first indicator for displaying whether the output of the built-in microphone 1 is
recorded or the output of the remote control microphone 32 and the remote control side LED 33
which is a second indicator The display control means (display means) to control is incorporated.
In the recording medium 8, in addition to audio data, for example, the user ID, selection setting of
recording mode, selection setting of BEEP sound, selection setting of sound activated recording,
reproduction position of data, etc. are supplied to the system control unit 6. Are stored under the
control of the system control unit 6 through the system control unit 6.
The operation state of the recorder when the LCD display 10 starts a predetermined sequence
operation by operating any switch of the operation switch group 11 by the LCD drive circuit 9
driven and controlled via the system control unit 6 Information is displayed using characters or
symbols, and while recording is being performed, it is displayed that recording is in progress. The
operation switch group 11 is an operation switch group for controlling various functions, and a
recording switch (REC SW) and a reproduction switch (PLAY) which are turned on / off by the
operation of each corresponding operation button provided on the exterior of the recorder. SW),
stop switch (STOP SW), fast forward switch (FF SW), fast reverse switch (REW SW), and menu
switch (MENU SW). Further, by using these switches, the user can input and set any user ID code
when using the recorder. At the time of initial setting, an arbitrary ID code is set in the fixed
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information storage unit (not shown) incorporated in the system control unit 6 as the user ID
code. Then, any user ID code stored at the time of this initial setting or any user ID code set by
the operation switch group 11 is controlled by the system control unit 6 and recorded in the
recording medium 8. It has become. Although the connection cord 34 of the remote control
microphone device 30 can be connected to the external jack 16, a signal indicating the
connection state of the connection cord 34 is taken into the system control unit 6. The selection
control means of the system control unit 6 switches the changeover switch 17 as described later
based on the connection state of the connection cord 34 or the microphone selection state, and
an audio signal from the built-in microphone 1 or the remote control microphone 32 One of the
audio signals from is selected, and audio processing is performed at a later stage. Further,
lighting or blinking of the LED 7 on the IC recorder 20 side or the LED 33 on the remote control
microphone device 30 side is based on the connection state of the connection cord 34 or the
microphone selection state as described later. It is controlled by the display control means of the
unit 6. The LED 7 is a two-color LED that lights in red during recording and lights in green during
playback. The LED 33 is a single-color LED that lights in red during recording. Next, control
processing of the IC recorder 20 including the remote control microphone device 30 of the
present embodiment will be described using the flowcharts of FIGS.
FIG. 2 shows a flowchart of a main routine executed after the main switch in the IC recorder 20 is
turned on. FIG. 3 is a flow chart of the subroutine "REC MODE" called during the main routine of
FIG. FIG. 4 is a flow chart of a subroutine "recording process" called during the subroutine "REC
MODE" of FIG. The main switch is turned on in the IC recorder 20, power supply power is
supplied to the entire system, and the processing of the main routine of FIG. 2 starts. All of these
process steps are processed under the control of the system control unit 6. In step S101,
predetermined initial settings necessary for recording and reproduction are performed. After
that, it is checked in step S102 whether there has been a switch state change of the operation
switch group 11, that is, whether or not a switch operation has been performed. When the switch
operation is performed, on / off of each switch is checked in steps S103 to S107, and the
corresponding subroutine is called. That is, when the recording switch (REC SW) of the operation
switch group 11 is turned on, the process jumps to step S108, the subroutine "REC MODE" is
called, and the recording mode processing is executed. When the play switch (PLAY SW) is
turned on, the process jumps to step S109, the subroutine "PLAY MODE" is called, and the play
mode processing is executed. When the fast-forwarding switch (FF SW) is turned on, the process
jumps to step S110, the subroutine "FF MODE" is called, and the fast-forwarding mode process is
executed. When the fast rewind switch (REW SW) is turned on, the process jumps to step S111,
the subroutine "REW MODE" is called, and fast reverse mode processing is executed. When the
menu switch (MENU SW) is turned on, the process jumps to step S112, the subroutine "menu
setting mode" is called, and the menu setting mode process is executed. After execution of each
mode, the process returns to step S102. When the subroutine "REC MODE" is called in step S108,
as shown in FIG. 3, first, in step S121, the system control unit 6 detects the connection state of
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the remote control microphone 32 to the main body side external jack 16. If it is connected, the
process jumps to step S124. If it is not connected, the process proceeds to step S122.
In step S122, the main body side LED 7 is turned on to indicate that recording is performed by
the built-in microphone 1, and in step S123, the changeover switch 17 is switched to the built-in
microphone side, and recording start processing by the built-in microphone 1 is performed. Ru.
When jumping to step S 124, the remote control side LED 33 is turned on to indicate that
recording is performed by the remote control microphone 32, and the changeover switch 17 is
switched to the remote control microphone side in step S 125. Processing is done. Subsequently,
in step S 126, the subroutine “recording process” of FIG. 4 is called, and the recording process
described later is executed. Then, in step S127, the recording end check is performed. That is,
when it is detected that the stop switch (STOP SW) is operated, the recording memory area
shortage of the recording medium 8 is detected, or the battery voltage drop is detected, the
process proceeds to step S128, and the recording end process is performed. Is executed, and the
process returns to step S102 of the main routine. However, if they are not detected, the process
returns to step S126 and the recording is continued. In the subroutine “recording process”
called in step S 126, as shown in FIG. 4, first, in step S 131, the system control unit determines
whether the remote control microphone 32 is inserted into the external jack 16 via the
connection cord. Check with 6. If the insertion of the remote control microphone 32 is detected,
the process proceeds to step S132. If the insertion of the remote control microphone 32 is not
detected, the process proceeds to step S136. In step S136, the system control unit 6 further
checks whether the remote control microphone 32 has been removed from the external jack 16.
If the remote control microphone 32 has been removed, the process proceeds to step S137. If it
has not been removed, the process jumps to step S140 assuming that there is no change in the
connection state of the remote control microphone 32. In step S132, the system control unit 6
switches the changeover switch 17 so that an audio signal from the remote control microphone
32 can be input. Then, in step S133, the main body side LED 7 is turned off, and in step S134,
the remote control side LED 33 is turned on to indicate a state in which the remote control
microphone 32 is recording. In step S135, recording start processing by the remote control
microphone 32 is performed, and the process proceeds to step S140.
When the process proceeds to step S137, the switch 17 is switched by the system control unit 6
so that an audio signal input from the built-in microphone 1 can be input, and the remote control
side LED 33 is turned off in step S138. The side LED 7 is turned on to indicate that recording is
performed by the built-in microphone 1. In step S139, recording start processing by the built-in
microphone 1 is performed, and the process proceeds to step S140. At step S140, encoding
processing of the audio input signal is performed, and at step S141, the audio signal is written to
the recording medium 8, and the process returns to step S127 of the subroutine "REC MODE". As
described above, in the IC recorder 20 of the present embodiment, when the remote control
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microphone 32 is not connected, the audio signal from the built-in microphone 1 is recorded in a
state in which the main body side LED 7 is lit. When 32 is connected, the audio signal from the
remote control microphone 32 is recorded in a state where the remote control side LED 33 is lit.
Furthermore, when the remote control microphone 32 is connected or disconnected during the
above recording operation, the sound from the remote control microphone 32 or the built-in
microphone 1 is switched to be recorded, and at the same time, the recording state is adjusted.
The remote control side LED 33 or the main body side LED 7 is turned on. Therefore, the
microphone side being used can be easily recognized, and the usability is improved. Next, an IC
recorder according to a second embodiment of the present invention will be described with
reference to FIG. FIG. 5 is a flowchart of a subroutine "recording process" in the IC recorder of
the present embodiment. The IC recorder of the present embodiment and the remote control
microphone device connectable to the IC recorder have the same configuration as the IC recorder
20 and the remote control microphone device 30 of the first embodiment shown in FIG. 1, but in
particular In the present embodiment, the subroutine "recording process" in the first embodiment
shown in FIG. 4 is the subroutine "recording process" called in step S126 (FIG. 3) of the
subroutine "REC MODE" in the main routine of the control process. It is different from Further,
the system control unit 6 in the present embodiment indicates information indicating whether
the built-in microphone 1 was used at the start of recording or the remote control microphone
32 was used, that is, which of the changeover switches 17 was selected. It further incorporates
holding means for holding and storing information.
Hereinafter, the same components as those in the first embodiment are denoted by the same
reference numerals, and different subroutines "recording processing" will be described. In the
subroutine “recording process” in the present embodiment, as shown in FIG. 5, first, in step S
151, the system control unit 6 checks whether the remote control microphone 32 is inserted into
the external jack 16. If the insertion of the remote control microphone 32 is not detected, the
process proceeds to step S152. If the insertion of the remote control microphone 32 is not
detected, the process jumps to step S157. In step S 152, the file currently being written is
checked, and whether there is a trace (remote control recording portion) recorded by the remote
control microphone 32 is referred to the information of the holding means of the system control
unit 6. Check. That is, it is checked whether recording is currently performed by the remote
control microphone 32 or recording has been performed by the remote control microphone 32
at the initial stage of recording. If recording is performed by the remote control microphone 32
or the recording portion exists, that is, when recording is started by the remote control
microphone 32, the process proceeds to step S153, but the recording portion is present If not,
that is, when the recording is started, if the recording is performed by the built-in microphone 1,
the process jumps to step S157. That is, the process jumps to step S157 without being switched
to the recording state by the remote control microphone 32. In step S153, the switch 17 is
switched to a state in which the audio signal input from the remote control microphone 32 is
recorded. In step S154, the main body side LED 7 is turned off, and the display state in which the
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built-in microphone 1 does not record is set. Further, in step S155, the remote control side LED
33 is turned on. Then, in step S156, recording start processing by the remote control
microphone 32 is performed. Thereafter, in step S140, the audio input signal is encoded. In step
S141, the audio signal is written to the recording medium 8, and the process returns to step
S127 of the subroutine "REC MODE" of FIG. According to the IC recorder of the second
embodiment, in addition to the effect by the IC recorder 20 of the first embodiment, when
recording is performed by the built-in microphone 1 at the start of recording, the remote control
microphone 32 is halfway Is controlled so as not to switch to the recording by the remote control
microphone 32 even if it is connected.
Therefore, there is no generation of noise due to the connection of the remote control
microphone, or interruption of recording (discontinuance of voice), and if recording start time is
built-in microphone recording, it is limited to only recording from built-in microphone, There is
no confusion in the recorded content. Next, an IC recorder according to a third embodiment of
the present invention will be described with reference to FIG. FIG. 6 is a flowchart of the
subroutine "REC MODE" in the IC recorder of the present embodiment. The IC recorder of this
embodiment and the remote control microphone device connectable to the IC recorder have the
same configuration as the IC recorder 20 and the remote control microphone device 30 of the
first embodiment shown in FIG. 1, but recording The subroutine "REC MODE" called in the main
routine of control processing is different. Therefore, the same components are denoted by the
same reference numerals, and the different subroutine "REC MODE" will be described below. In
the subroutine "REC MODE" in this embodiment called in step S108 of the main routine of FIG. 2,
steps S161 to S165 are the same as steps S121 to S165 in the subroutine "REC MODE" of FIG. 3
as shown in FIG. It is the same as the processing contents up to S125. In step S 166, the
subroutine “recording process” is called. This recording process is the same as the subroutine
“recording process” in the first embodiment shown in FIG. There is no step of checking if it has
been removed from the Therefore, if the insertion of the remote control microphone 32 is not
detected in the insertion check of the remote control microphone 32 into the external jack 16 in
step S131 of FIG. 4, the process proceeds directly to step S137. Except for this processing,
processing similar to that of the subroutine "recording processing" of FIG. 4 is performed.
Subsequently, in step S 167, the system control unit 6 checks whether the remote control
microphone 32 has been removed from the external jack 16. If it is removed, the process jumps
to step S169, the recording end process is executed, the recording operation is ended, and the
process returns to step S102 of the main routine of FIG. If not removed, the process proceeds to
step S168. In step S168, a recording end check is performed. That is, when it is detected that the
stop switch (STOP SW) is operated, the recording memory area shortage of the recording
medium 8 is detected, or the battery voltage drop is detected, the process proceeds to step S169
and the recording end processing is performed. Is executed, and the process returns to step S102
of the main routine of FIG.
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However, if they are not detected, the process returns to step S166 and the recording is
continued. According to the IC recorder of the third embodiment, in addition to the effect by the
IC recorder 20 of the first embodiment, when the remote control microphone 32 is removed
during recording by the remote control microphone 32, the recording operation is immediately
performed. Since the process is ended, it is possible to record only the data recorded by the
remote control microphone 32 in the same file in a state of being automatically divided. Next, an
IC recorder which is a voice input device according to a fourth embodiment of the present
invention will be described with reference to FIGS. FIG. 7 shows a flowchart of a main routine
executed after the main switch is turned on in the IC recorder of this embodiment. FIG. 8 is a
flowchart of the subroutine "microphone switching process" called during the main routine. The
configurations of the IC recorder according to the present embodiment and the remote control
microphone device connectable to the IC recorder are the same as the configurations of the IC
recorder 20 and the remote control microphone device 30 according to the first embodiment
shown in FIG. In particular, in the present embodiment, a part of the main routine of the control
processing in the first embodiment is different. That is, steps S183 and S184 of the main routine
are added to the main routine shown in FIG. 2 as shown in FIG. 7, and the subroutine
“microphone switching process” in FIG. 8 is called there. Hereinafter, the same reference
numerals are given to the same constituent members, and different parts of the control
processing will be described. In the IC recorder of this embodiment, as shown in the flowchart of
FIG. 7, the processing from step S171 to step S182 is similar to the processing from step S101 to
step S112 in the main routine of FIG. It will be. Then, in this routine, after the processing of steps
S178 to S182, the process proceeds to step S183. In step S 183, the system control unit 6 checks
whether the remote control microphone 32 has been inserted or removed according to the state
of the external jack 16. If it is inserted or removed, the process jumps to step S184, and the
subroutine "microphone switching process" is called. If not inserted or removed, the process
returns to step S172. When the subroutine “microphone switching process” is called in step
S184, the system control unit 6 checks whether the remote control microphone 32 has been
inserted in step S191 according to the state of the external jack 16 as shown in FIG.
If inserted, the process proceeds to step S192. If not inserted, the process jumps to step S193. In
step S193, the system control unit 6 checks whether the remote control microphone 32 has been
removed according to the state of the external jack 16. If it is removed, the process proceeds to
step S194. If not removed, the process returns to the main routine. In step S192, in order to
indicate that the remote control microphone 32 has been inserted and connected, the remote
control LED 33 is turned on for 2 seconds, and the process returns to the main routine, and the
processing in step S172 and subsequent steps is performed. In step S194, in order to indicate
that the remote control microphone 32 has been removed, the main body side LED 7 is turned on
for 2 seconds, and the process returns to the main routine, and the processing in step S172 and
subsequent steps is performed. As described above, according to the IC recorder of this
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embodiment, in addition to the effects of the first embodiment, when remote control microphone
32 is removed or inserted even when recording is not performed, By turning on the main unit
side LED 7 or remote control side LED 33 for a short time that the remote control microphone 32
has been removed or inserted, it is ensured to the user which microphone will work effectively
when recording starts. Can be recognized and recording errors can be prevented. As described
above, according to the present invention, it is ensured to the user whether recording is reliably
performed, and which one of the main microphone and the external microphone is effectively
working. An audio input device that can be recognized can be provided. BRIEF DESCRIPTION OF
THE DRAWINGS FIG. 1 is a block diagram of an IC recorder of a voice input device according to a
first embodiment of the present invention and a remote control microphone device connectable
to the IC recorder. FIG. 2 is a flowchart of a main routine of control processing in the IC recorder
of FIG. 1; FIG. 3 is a flowchart of a subroutine “REC MODE” called in the main routine of FIG. 2;
FIG. 4 is a flowchart of a subroutine “recording process” called in the subroutine “REC
MODE” of FIG. 3; FIG. 5 is a flowchart of a subroutine “recording process” in an IC recorder
according to a second embodiment of the present invention. FIG. 6 is a flowchart of a subroutine
“REC MODE” in an IC recorder according to a third embodiment of the present invention.
FIG. 7 is a flowchart of a main routine of control processing in an IC recorder according to a
fourth embodiment of the present invention. 8 is a flowchart of a sub “microphone switching
process” called in the main routine of FIG. 7; Explanation of symbols 1 ... built-in microphone 6
... system control unit (recording means, display means, instruction means, receiving means,
holding means, control means) 7 ... main body side LED (first indicator, display means) 10 ... LCD
Display unit (information display device) 16 ... External jack (connection unit) 17 ... Selection
switch (selection means) 21 ... IC recorder main body (voice input device main body) 30 ... remote
control microphone device (external microphone main body) 32 ... remote control microphone
(external) Microphone ... 33 ... LED on the remote control (second indicator, display means)
10-04-2019
11
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