JPH0552900

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DESCRIPTION JPH0552900
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
karaoke apparatus for reproducing performance information read from a recording medium and
audio information input from a microphone.
[0002]
2. Description of the Related Art In general, a karaoke reproducing apparatus generally
comprises a circuit for reproducing performance information and a circuit for reproducing audio
information. On the circuit side for reproducing performance information, the player reads out
and reproduces performance information recorded on a recording medium such as a CD
(Compact Disc) or cassette tape, and on the circuit side for reproducing audio information, the
voice of the user who is singing It is detected by a microphone and converted into an audio
signal, and this audio signal is reproduced. Therefore, in the karaoke mode, both circuits are set
to ON, and the performance information and the audio signal are mixed and reproduced so that
the user can sing along with the music. On the other hand, in the normal performance mode, the
circuit for reproducing the audio signal is turned off and only the circuit for reproducing the
performance information is turned on, and only the performance information is reproduced to
play as background music. Switching between the karaoke mode and the normal performance
mode can be performed by manual operation of a mode switch.
[0003]
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Also, although performance information of a plurality of pieces of music is recorded on a CD or
cassette tape for karaoke, when performing karaoke, only a specific piece of music recorded on
the CD or cassette tape is sung Is common. Therefore, when setting the karaoke mode, the mode
switching switch is operated, and only the performance information of the designated music is
reproduced, and a mode for waiting when the music is ended, or immediately before the end of
one music A setting such as a fade-out mode is previously performed by a switch operation,
thereby forming a functional state suitable for the karaoke mode. In addition, when playing
background music, it is general to continuously play back the performance information recorded
on a CD or cassette tape, so the mode switch is operated and at the end of one song Settings such
as a mode for continuously reproducing the next music and a mode for preventing fade-out
immediately before the end of one music are set by switch operation in advance, thereby forming
a functional state suitable for the normal performance mode.
[0004]
As described above, in the conventional karaoke reproducing apparatus, when used in the
karaoke mode or the normal performance mode, the user operates the changeover switch and It
is necessary to operate a switch necessary for execution to form a functional state suitable for
the karaoke mode or a functional state suitable for the normal play mode. Therefore, operations
for forming a functional state suitable for another mode or for forming a functional state suitable
for the mode again become complicated. For this reason, regardless of using a single karaoke
reproduction apparatus not only for karaoke performance but also for normal performance such
as background music performance, the karaoke mode is set steadily and only for karaoke
performance. The fact is that it is being used.
[0005]
The present invention has been made in view of such conventional circumstances, and it is an
object of the present invention to provide a karaoke reproducing apparatus capable of easily
switching between karaoke performance and normal performance. is there.
[0006]
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present
invention comprises reading means for reading performance information from a recording
medium and a detachable microphone for inputting voice information, The functional state
necessary for the karaoke mode for reproducing the performance information and the audio
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information and the functional state required for the normal performance mode for reproducing
only the performance information are respectively set, and reproduction is possible in each
mode. The apparatus automatically sets a functional state necessary for the karaoke mode when
the microphone is attached based on the detection means for detecting the detachment of the
microphone and the detection result of the detection means, and the normal performance mode
when the microphone is detached Setting means for automatically setting the required function
state
[0007]
In the above configuration, when the detachable microphone is attached, the attachment of the
microphone is detected by the detection means, and the setting means sets the functional state
necessary for the karaoke mode.
Then, according to the function state set by the setting means, it is possible to perform karaoke
performance for reproducing the performance information read from the recording medium and
the audio information input from the microphone.
When the microphone is detached, the detecting means detects the detachment of the
microphone, the setting means sets the functional state necessary for the normal performance
mode, and the setting means reads the recording medium from the recording medium according
to the functional state. Only the performance information is reproduced.
[0008]
DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will
be described below with reference to the drawings. That is, FIG. 1 is a block circuit diagram of
the karaoke reproducing apparatus according to the present embodiment, and the CD player 1
reads out the performance information of Rch and Lch stored in the CD and converts it into an
electric signal. Output as). The audio signal (a) is input to the first changeover switch 2 and is
also input to the audio multiplexing circuit 3, and the audio signal (b) subjected to audio
multiplex processing by the audio multiplexing circuit 3 is the first changeover switch Input to 2
The first changeover switch 2 selects one of the audio signals (a) and (b) by switching operation,
and inputs it to the fade-out circuit 4 as an audio signal (c). The fade out circuit 4 outputs an
audio signal (d), and the audio signal (d) is input to the second changeover switch 5 and the
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audio mixing circuit 6. The second changeover switch 5 selects and outputs the audio signal (d)
and the output of the audio mixing circuit 6 by switching operation, and the signal output from
the audio mixing circuit 6 is amplified by an amplifier outside the figure. To the speaker
[0009]
On the other hand, the microphone 7 is a detachable type having a plug at the end of the cord
connected to the microphone body, and is mechanically switched on / off depending on the
presence or absence of the plug inserted in the switch-equipped microphone jack 8. A switch is
provided. With the plug inserted, the microphone audio signal output from the microphone 7 is
input to the microphone amplifier 9 via the switch-equipped microphone jack 8 and amplified by
the microphone amplifier 9. The microphone audio signal amplified by the microphone amplifier
9 is level-adjusted by the microphone volume 10, and a reverberation component is added by the
reverberation circuit 11, and the microphone audio signal to which the reverberation component
is added is the voice mixing circuit. At 6, it is mixed with the audio signal (d). Power is supplied to
the audio mixing circuit 6, the microphone amplifier 9, the reverberation circuit 11, and the
audio multiplexing circuit 3 through the karaoke circuit power switch 14.
[0010]
On the other hand, the KEY group 13 includes a play key, a voice multiplex mode key, a forward
direction jump key, a stop key, a reverberation circuit setting key, a repeat mode key, and a
number key comprising "0 to 9" and "+10". It is configured. The KEY input by the operation of
these KEYs is taken into the CPU 15, and the sub code information read from the CD by the CD
player 1 is further taken into the CPU 15, and the mechanical switch provided on the
microphone jack 8 with switch is turned on. Microphone switch information indicating the off
state is taken. The CPU 15 operates in accordance with the program stored in the internal ROM
to control the CD player 1, the audio multiplex circuit 12, both changeover switches 2, 5, the fade
out circuit 4, the reverberation circuit 11, and the karaoke circuit power switch 14; Writes to and
reads from the memory 16. The memory 16 is provided with a storage area for the karaoke
mode and a storage area for the normal performance mode, and the CPU 15 performs writing
and reading to the corresponding storage area according to each mode.
[0011]
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Next, the operation of this embodiment according to the above configuration will be described
based on the flowchart shown in FIG. The CPU 15 starts the operation according to this flowchart
in response to the turning on of the power supply outside the figure, and first clears the memory
16 etc. to initialize the setting conditions previously set by the operation of the KEY group 13
(S1). Next, based on the microphone switch information from the switch-equipped microphone
jack 8, it is determined whether the plug of the microphone 7 is inserted into the switchequipped microphone jack 8 (S2), and if it is inserted, the karaoke mode And the karaoke circuit
power switch 14 is turned on (S3). As a result, power is supplied to the audio mixing circuit 6,
the microphone amplifier 9, the reverberation circuit 11, and the audio multiplexing circuit 3
through the karaoke circuit power switch 14, and these circuits and amplifiers become operable.
[0012]
Subsequently, the CPU 15 sets a mode for waiting without starting the reading of the next
performance information at the end of one track when the CD player 1 finishes reading the
performance information for one song (S4). Immediately before the end, the fade out circuit 4 is
operated to set a fade out mode (S5). Furthermore, when the disc set in the CD player 1 is audio
multiplex based on the subcode information input from the CD player 1, both selector switches 2
and 5 are set to b (S6). The audio signal (b) from the circuit 6 and the output signal from the
audio mixing circuit 6 are selected. When the key KEY in the key group 13 is depressed during
performance, the depressed key is sequentially stored, and when one tune is ended, a reservation
mode for reproducing the next tune successively is set (S7). Next, after storing the setting
conditions set by the processing of S3 to S8 in the storage area for karaoke mode of the memory
16 (S8), it is determined whether or not there is a change in the mechanical switch of the
microphone jack 8 with switch. (S9).
[0013]
Then, if there is no change, the current state is maintained without progressing to the next step
in this flow, and in the meantime, the CPU 15 responds according to the setting conditions stored
in the storage area for karaoke mode of the memory 16. Control signal is output to the control
circuit. Therefore, for example, the CD player 1 is stopped and made to stand by at the end of one
song corresponding to the setting condition at S4, or the fade out circuit 4 is operated and faded
out immediately before the end of one song corresponding to the setting condition at S5
Processing is performed. When the mechanical switch is changed by pulling out the plug of the
microphone 7 from the switch-equipped microphone jack 8, the process proceeds from S9 to
S10, except for the setting conditions stored in the memory 16 at S8, and the operation of the
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KEY group 13 The current setting conditions (reverberation circuit setting, repeat mode, etc.) set
by are stored in the karaoke mode storage area of the memory 16 (S
[0014]
When the plug of the microphone 7 is pulled out of the switch-equipped microphone jack 8 in
this manner, the normal performance mode is set, and when the determination process from S2
is executed again, the process proceeds from S2 to S11 and the karaoke circuit power switch 14
is turned off (S11). As a result, the supply of power to the audio mixing circuit 6, the microphone
amplifier 9, the reverberation circuit 11, and the audio multiplexing circuit 3 is stopped, and
these circuits and amplifiers that become unnecessary in the normal performance mode become
inoperable. And unnecessary power consumption is prevented
[0015]
Subsequently, the CPU 15 sets a mode for continuously reproducing the next piece of music
when one piece of music information for one piece of music is finished reading (S12), and the
fade-out circuit immediately before the end of one piece of music. The mode which does not fade
out is set without operating 4 (S13). Furthermore, regardless of the type of disc set in the CD
player 1, both selector switches 2 and 5 are set to a (S14), and the audio signal (a) and the audio
signal (d) from the CD player 1 are set. Choose Also, if the key KEY in the KEY group 13 is
pressed during performance, the mode jumps to the track corresponding to that KEY at any time
and the mode to start the performance is set (S15). It is determined whether there is a change in
the mechanical switch of (S9).
[0016]
If there is no change in the mechanical switch, the current state is maintained without
progressing to the next step in this flow, and the CPU 15 keeps the CD player 1 or the
corresponding according to the setting conditions set in S12 to S15. Control signal is output to
the control circuit. Thus, for example, at the end of one song corresponding to the setting
condition at S12, the CD player 1 is continued to reproduce the next song, or the fade-out circuit
4 is performed immediately before the end of one song corresponding to the setting condition at
S13. Processing is performed such as stopping and not fading out. Then, when a change occurs
in the mechanical switch by inserting the plug of the microphone 7 again into the switch-
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equipped microphone jack 8, the process proceeds from S9 to S10, and the current setting
conditions set in S12 to S15 are normally played in the memory 16 The area is stored in the
mode storage area (S10).
[0017]
As described above, when the plug of the microphone 7 is inserted into the switch-equipped
microphone jack 8 again, the above-described discrimination processes of S2 to S9 are executed.
Therefore, as described above, it is determined in S9 whether or not there is a change in the
mechanical switch of the switch-equipped microphone jack 8, and if there is no change, the CPU
15 is stored in the memory 16 without proceeding to the next step. The control signal is output
to the corresponding circuit according to the set conditions to execute the control. At this time, in
the storage area for the karaoke mode of the memory 16, when the mode is changed from the
karaoke mode to the normal performance mode last time, the setting conditions for the first time
are stored by the process of S10. Therefore, the CPU 15 resets the stored setting conditions, and
controls the reverberation circuit 11 and the CD player 1 in accordance with the reverberation
circuit setting stored in the karaoke mode storage area of the memory 16 and the repeat mode.
Therefore, when the karaoke mode is set again, the karaoke performance can be performed
according to the setting conditions set in the previous karaoke mode without operating the
reverberation circuit setting key and the repeat mode key of the KEY group 13 anew. it can.
[0018]
As described above, the present invention detects the detachment of the microphone and
automatically sets the functional state necessary for the karaoke mode when the microphone is
attached, and the normal performance mode when the microphone is detached. The required
function status has been set automatically. Therefore, when using the karaoke reproducing
apparatus in the karaoke mode or the normal performance mode, it is not necessary to form the
functional state necessary for each mode by the switch operation. Therefore, it is possible to
easily switch to each mode, and to increase the frequency of using a single karaoke player not
only for karaoke performance but also for normal performance.
[0019]
Also, since the power supply of the circuit for reproducing the audio information from the
microphone is turned off in the normal performance mode, unnecessary power consumption can
be avoided, and a function necessary for the karaoke mode can be avoided. When setting the
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state, the function state that was set by manual operation at the time of the previous karaoke
mode stored in advance is also automatically set, so simplification of the manual operation when
the karaoke mode is set again Can also be implemented.
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