JP3774070B2 - Multi-track recorder with built-in tuner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a multitrack recorder with a built-in tuner, and more particularly to a multitrack recorder with a built-in tuner that measures a pitch of a signal input from an input jack, an output signal of a built-in microphone, and a playback signal of a recording track. .
[0002]
[Prior art]
When playing a plurality of musical instruments separately and recording these performances as a single performance on a multitrack recorder, it is necessary to tune the plurality of musical instruments to match the pitch between the sounds generated by the plurality of musical instruments. . In general, prior to recording with a multitrack recorder, a single tuner that is independent of the multitrack recorder is used, and based on this, a plurality of musical instruments are tuned to a reference pitch.
[0003]
In order to tune a plurality of musical instruments to a reference pitch using a single tuning device, first, an acoustic signal of the musical instrument to be tuned is input to the tuning device. Here, in order to input an acoustic signal to the tuner, if the musical instrument is an electronic musical instrument, the acoustic signal output terminal is connected to the acoustic signal input terminal of the tuner. In this state, the sound signal is generated by operating a key having a pitch corresponding to the reference pitch of 440 Hz. If the musical instrument is an acoustic musical instrument, the sound signal output terminal of the microphone is connected to the tuner and the sound signal input terminal of the tuner. In this state, the sound signal generated by performing the performance of the pitch corresponding to the reference pitch of 440 Hz on the microphone is input to the tuner. The tuning unit amplifies, shapes, and A / D-converts the input acoustic signal as described above, supplies it to the CPU, detects the fundamental period of the acoustic signal, and uses this as the reference fundamental period of the tuning unit. In comparison, the pitch error is measured and displayed (for details of the tuner, see Registered Utility Model Publication No. 3033255). The musical instrument player performs tuning while recognizing the pitch error measured and displayed to make the pitch error zero.
[0004]
[Problems to be solved by the invention]
Depending on the manner of tuning as described above using a single tuning device, it is not possible to perform proper and rapid tuning in various respects.
When recording performances of a plurality of musical instruments on a multi-track recorder, the players of each musical instrument are not always tuned and recorded by a common tuner in a common performance studio. In many cases, each musical instrument player tunes and records performance with a separate tuning device in a separate performance studio.
[0005]
In this case, first, a deviation of the reference basic period of each tuner becomes a problem. Even if the tuning instrument used is limited to a specific one, if the performance studio is different, the condition of the tuning instrument varies due to the different recording environment, and the four instruments are shared by a common standard. It is not tuned based on the basic period. Even if the performance studio is shared and the tuning device used is limited to one specific tuning device, if the recording is performed at different times when playing different instruments, the tuning studio status and the performance studio status Both fluctuate due to different use times.
[0006]
When the musical instrument is an electronic musical instrument, its acoustic signal output terminal is connected to a jack which is an acoustic signal input terminal of the tuner. However, although standards are specified for jacks that are plugs and input terminals for carrying out this connection, a plurality of types of plugs and jacks that are specified are not always used. Therefore, the plug connected to the output terminal of the electronic musical instrument does not always match the jack of the tuner.
[0007]
The present invention provides a multi-track recorder that eliminates the above-described problems by incorporating a tuner.
[0008]
[Means for Solving the Problems]
The multi-track recorder with built-in tuner of the present invention includes a plurality of recording tracks set in the hard disk recording device, and multiplex-records the same piece of music at different times for each of the plurality of recording tracks, and simultaneously records the plurality of recording tracks. In a multitrack recorder that can be played back, a tuner that measures an error between the basic period of the acoustic signal and the reference period assigned to each pitch name;
[0009]
A playback track output terminal selector switch for selecting a playback track output terminal corresponding to one of the recorded tracks on which the musical sound that determines the frequency of the reference sound for the next performance is recorded, and obtaining a playback signal from the recorded track An input selection switch for connecting any of the output terminal of the built-in microphone, the output terminal of the line input jack, and the playback track output terminal selected by the playback track output terminal switch to the input terminal of the tuner;
[0010]
A touch panel is provided on the display surface. The touch panel controls the operation of the tuner selection switch, controls the input selection switch, and the playback track output terminal selector switch. A liquid crystal display that displays the presence of these controls on the touch panel that constitutes the controls of the tuner selection switch, the input selection switch, and the playback track output terminal changeover switch according to the operating state. It is characterized by providing.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
In FIG. 1, 1 is a selection switch, 2 is a reference frequency oscillator, 3 is an operator, 4 is a waveform shaping circuit, 5 is a CPU, and 6 is a liquid crystal display.
FIG. 2 shows the liquid crystal display 6, which is attached and fixed to the multitrack recorder RE. 2A shows the liquid crystal display 6 displaying the input assignment screen 61, and FIG. 2B shows the liquid crystal display 6 displaying the tuner screen 62. FIG. The liquid crystal display 6 is configured such that the liquid crystal display surface itself constitutes the operation element 3 including a touch panel and an input selection switch 11 is provided on the lower side thereof.
[0012]
When the input push button 60 attached to the multi-track recorder RE is pressed, the input assign screen 61 is displayed on the liquid crystal display 6 and the tuner 611 of the tuner selection switch surrounds the Tuner in four corners. Is displayed. When the tuner selection switch operator 611 is pressed and touched, the liquid crystal display 6 is switched from the input assign screen 61 to the tuner screen 62. On the tuner screen 62, an operator 621 of the input selection switch 11 is formed. The input to be tuned can be selected by pressing and contacting the operation element 621 of the input selection switch 11 . By pressing and contacting the INPUT area of the operation element 621 of the input selection switch 11, one of the selected jacks among the plurality of jacks provided in the tuner is selected. When the MIC area of the operation element 621 of the input selection switch 11 is pressed and touched, a microphone built in the multi-track recorder RE is selected. When the TRACK area of the operation element 621 of the input selection switch 11 is pressed and touched, one of the selected playback tracks is selected from the playback tracks of the multi-track recorder RE.
[0013]
3 and 4 are block diagrams of an embodiment of a multi-track recorder with a built-in tuner. The recording operation of the multitrack recorder RE will be described with reference to FIGS.
The acoustic signal input to the multitrack recorder RE from the microphone or the input jack via the input selection switch 11 is input to the selected channel via the operational amplifier 71, the A / D converter 72, and the recording track selection switch 73. . The acoustic signal input to the selected channel reaches the selection switch 75 via the changeover switch 741, the equalizer 742, the changeover switch 743, and the first recording track output / input line 744. The acoustic signal that has reached the selection switch 75 is recorded on the 8-track hard disk storage device 78 via the changeover switch 76 and the selection switch 77. Note that this hard disk storage device 78 is also connected to the CPU 5 to perform arithmetic control processing. By providing a plurality of types of input jacks, it is possible to easily connect various electronic musical instruments having different plugs.
[0014]
2 to refer to FIG. 4 describes the operation of the tuner TU.
The built-in tuner TU is selected in the multi-track recorder RE by pressing the input push button 60 and pressing the input push button 60 to the tuner 611 (FIG. 2A) of the tuner selection switch , and the use state is formed. Then, according to whether the musical instrument to be tuned is an electronic musical instrument or an acoustic musical instrument, the operator 621 (FIG. 2B) of the input selection switch 11 for the tuning TU is selectively pressed and contacted, and a microphone or an input jack is connected. select.
[0015]
An acoustic signal input to the tuner TU from the microphone or the input jack via the input selection switch 11 is amplified by the operational amplifier 71, and the tuner TU is input via the microphone or microphone line input / output lines 791 and 792 and the input selection switch 11. Are input to the waveform shaping circuit 4 via the input terminal TI (FIG. 4) , where the fundamental period is extracted by amplification and waveform shaping and supplied to the CPU 5. The fundamental period of the acoustic signal supplied to the CPU 5 is compared with the reference fundamental period generated by the reference frequency oscillator 2 included in the tuner TU, and the pitch error is measured. The pitch error measured by the CPU 5 is displayed on the liquid crystal display 6, and the musical instrument player tunes the musical instrument while recognizing the displayed pitch error to finally make this pitch error zero.
[0016]
Here, a description will be given of a method of inputting an acoustic signal recorded in the 8-track hard disk storage device 78 of the multi-track recorder RE to the tuner TU and measuring its pitch. Also in this case, the input push button 60 is pressed, and the built-in tuner TU is selected by pressing and touching the tuner selection switch operator 611 (FIG. 2) , and the recorded acoustic signal is input. Correspondingly, the TRACK area of the operator 621 (see FIG. 2B) of the input selection switch 11 is pressed and contacted to switch from the display of the tuner screen FIG. 2 (b) to the display of the track number selection screen FIG. 2 (c). Select and touch numbers 1 to 8 to select a track to be reproduced. In this state, the sound signal recorded on the selected first track of the 8-track hard disk storage device 78 of the multi-track recorder RE is read and reproduced, and the reproduced sound signal is reproduced on the first reproduction track input / output line 781, The reproduction track output terminal changeover switch 782 (see FIG. 4) is input to the tuner TU via the input selection switch 11. The reproduced sound signal input to the tuner TU is compared with the reference fundamental period generated by the reference frequency oscillator 2 included in the tuner TU in the same manner as in the case of the acoustic signal generated by the musical instrument performance. Is displayed on the liquid crystal display 6.
[0017]
【The invention's effect】
As described above, there has never been a multi-track recorder with a built-in tuner, but the multi-track recorder itself has a built-in tuner so that a multi-track performance can be performed. When recording using a recorder, the tuning operation of each instrument and the handling operation of the multi-track recorder can be easily simplified. Specifically, the performance of a plurality of musical instruments can be recorded on a multi-track recorder by providing a configuration in which the output terminal of the microphone and the output terminal of the line input jack are switched and connected to the tuner input terminal via an input selection switch. In this case, the player of each instrument tunes with a common tuner built in any performance studio, and the problem of deviation of the reference basic period of the tuner is essentially eliminated.
[0018]
And by providing a configuration in which the playback track output terminal of the hard disk storage device of the multi-track recorder is also switched and connected to the tuner input terminal via the input selection switch, the recorded acoustic signal is input to the tuner. Since the pitch can be measured, it is possible to tune the musical instrument to be played later with reference to the pitch of the recorded acoustic signal. As a result, when recording multiple instruments at different performance studios and at different times, even if the state of the tuner and the state of the performance studio fluctuate, each pitch is determined based on the pitch of the previous performance in this state. Since the instrument is tuned, this tune can be made appropriate.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an embodiment.
FIG. 2 illustrates a liquid crystal display portion.
FIG. 3 is a diagram illustrating an entire multitrack recorder.
FIG. 4 is a continuation of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Selection switch 11 Input selection switch 11 'Recording track output terminal changeover switch 2 Reference frequency oscillator 3 Manipulator 4 Waveform shaping circuit 5 CPU
6 Liquid crystal display 60 Input push button 61 Input assign screen 611 Tuner selection switch operator 62 Tuner screen 621 Input selection switch 11 operator 71 Operational amplifier 72 A / D converter 73 Recording track selection switch 741 Changeover switch 742 Equalizer 743 changeover switch 744 first recording track input / output line 75 selection switch 76 changeover switch 77 selection switch 77
78 Hard disk storage device 781 First playback track input / output lines 791, 792 Microphone line input / output lines RE Multi-track recorder TI Tuning device input terminal TU Built-in tuning device

Claims (1)

In a multi-track recorder comprising a plurality of recording tracks set in a hard disk recording device, multiple recordings of the same song at different times for each of the plurality of recording tracks, and enabling the simultaneous playback of these recording tracks.
A tuner that measures the error between the basic period of the acoustic signal and the reference period assigned to each pitch name;
A playback track output terminal selector switch for selecting a playback track output terminal corresponding to one of the recorded tracks on which the musical sound that determines the frequency of the reference sound of the next performance is recorded, and obtaining a playback signal from the recorded track; ,
An input selection switch for connecting any of the output terminal of the built-in microphone, the output terminal of the line input jack, and the playback track output terminal selected by the playback track output terminal switch to the input terminal of the tuner.
A touch panel is provided on the display surface, and the operation unit of the tuner selection switch that controls the operation of the tuner by the touch panel, the operation unit of the input selection switch, and the operation unit of the playback track output terminal changeover switch are configured. Depending on the operating state of the recorder, the presence of these controls is present in the touch panel portion that constitutes the controls of the tuner selection switch, the input selection switch, and the playback track output terminal changeover switch. A liquid crystal display to display,
A multi-track recorder with a built-in tuner.

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