JPH0731408Y2 - Disk recording system - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a disk recording system, and particularly to a disk capable of automatically stabilizing the recording peak level regardless of the difference in the recording level of each disk. Regarding recording system.

[Conventional technology]

On CDs, the peak level of recorded signals is generally high for rock and symphony, and low for popular and string musical instruments.

Further, even for the same song, the peak level of the recording signal is usually different depending on the CD software manufacturer.

Therefore, when attempting to record from a CD to tape, conventionally, before recording, perform a trial CD play, turn the knob of the recording level adjustment VR while watching the peak meter of the tape deck, It was necessary to adjust to an appropriate level that does not cause recording distortion.

However, since the playing time of the CD is about several tens of minutes, it takes a long time to adjust the recording level in the above method, and the adjustment is troublesome.

In view of this point, in recent years, CCRS (Computer Control CD Recording System) has been developed which systemizes a CD player and a tape deck.

This searches for the peak level of the CD, automatically adjusts the peak level to the optimum level, and plays and records.

Specifically, the system deck (tape deck for CCRS)
When the CCRS key provided in is turned on, the system microcomputer of the system deck bypasses the recording level adjustment VR and performs line input from the system CD player,
The recording level on the deck side is set to the maximum fixed level regardless of the position, and the CCRS command is sent to the system microcomputer of the system CD player (CD player for CCRS).

Based on the CCRS command, the system microcomputer of the system CD player reproduces a predetermined portion of a predetermined music number of the CD in order to search for a peak level.

At this time, the CD playback signal is input to the output level adjustment unit with variable gain (attenuation), and this output level adjustment unit automatically adjusts the peak level output from the output level adjustment unit so that it does not exceed a certain level. Variable gain, CD
The output peak level to the system deck side is automatically adjusted according to the peak level of, and the recording level is adjusted to the optimum level for the system deck set to the maximum.

When the search for the peak level is completed, the system microcomputer of the system CD player starts playing the first music piece of the CD, and at this time, outputs a REC start control signal to the system deck.

The system microcomputer of the system deck that receives the REC start control signal starts recording on tape. At this time,
The recording level remains fixed at the maximum level.

After that, when the performance of all the songs on the CD is completed, the system microcomputer of the system CD player stops the performance of the CD and outputs a REC stop control signal to the system deck.

The system microcomputer of the system deck that receives the REC stop control signal stops recording by tape.

In this way, according to CCRS, the search for the peak level of the CD, the optimum adjustment of the recording level for the peak level, the performance of the CD and the synchronous recording are all done automatically only by turning on the CCRS key. The labor is significantly reduced, and
It also saves time.

The output level adjuster is set to the maximum gain (attenuation is zero) when playing normally with the system CD player, and the recording level adjustment is used when performing normal recording with the system deck.
Line input through VR.

[Problems to be solved by the device]

However, the system CD used in conventional CCRS
The player can only store one CD, and there is no systemized multi-CD player that can store multiple CDs. Therefore, users who want to use the multi-CD player cannot enjoy the inconvenience described above when recording a CD. was there.

Also, in the conventional CCRS, the CCRS key is installed on the system deck side, and unless the CCRS key of the system deck is turned on, the system CD player does not perform the peak search and output level adjustment operations described above, and has only the system CD player. ,
Even users without a system deck were not immune to the inconvenience mentioned above when recording a CD.

The present invention has been made in view of the above-mentioned problems of the conventional technology, and an object thereof is to provide a disk recording system with improved convenience for the user.

More specifically, it is an object of the present invention to obtain a disc recording system that enables performance / recording of peak level automatic adjustment even with a multi-disc player.

Furthermore, continuous peak level automatic adjustment performance / recording is possible for multiple discs stored in the multi-disc player, and peak level automatic adjustment performance / recording is possible with simple operation for all discs. The purpose is to do.

[Means for Solving the Problems]

The disk recording system of this invention performs disk storage means for storing a plurality of disks, disk selection operation means for selecting a plurality of disks to be continuously played, and peak level automatic adjustment performance / record command generation operation. Command generation operation means, disk reproducing means for reproducing a disk, output level adjusting means for adjusting an output level provided on the output side of the disk reproducing means, and a disk reproduction signal output from the output level adjusting means. A recording means for inputting and recording on a predetermined recording medium, and a plurality of disks selected by the disk selecting operation means are sequentially taken out from the disk storing means and set in the disk reproducing means each time the performance of one disk is completed. After the disc to be played is selected by the disc exchanging device and the disc selecting and operating device, While the automatic level adjustment performance / recording command is not issued, the normal performance control is performed to the disc reproducing means, and the output level adjusting means is fixed to a predetermined level so that the normal level of the disc set in the disc reproducing means is maintained. When the normal performance control means for performing the performance and the peak level automatic adjustment performance / recording command are issued, the predetermined peak search control for the disk playback means is performed for only one disk immediately before the performance or the current performance. , Automatic peak level adjustment including performance control for the disc reproducing means and synchronous recording control for the recording means after making the output level adjusting means perform a predetermined peak level adjustment for constant peak level And a peak level automatic adjustment performance / recording control means for controlling.

In another disk recording system of the present invention, the peak level automatic adjusting performance / recording control means targets only one disk immediately before or when the peak level automatic adjusting performance / recording command is issued. Instead, among the disks selected by the disk selecting operation means, the peak level automatic adjustment performance / recording control is performed for each disk for which the performance has not been completed yet. .

Still another disk recording system of the present invention is one in which all the disks are selected by the disk selection operation means when the peak level automatic adjustment performance / recording command is issued while the disks are not selected by the disk selection means. It is characterized by treating as.

〔Example〕

 A first embodiment of the present invention will be described with reference to FIG.

FIG. 1 shows a block diagram of a CD recording system according to the present invention.

The CD recording system comprises a system multi-CD player 10 and a system deck 40.

First, the system multi-CD player 10 is a CD reproducing unit including a magazine unit 12 as a CD storing unit for storing a plurality of CDs, a spindle motor, an optical pickup, a signal processing circuit, a D / A converter, and various servo circuits. Part 14, CD
An output level that is provided on the output side of the CD exchanging mechanism section 16 and the CD reproducing section 14 for exchanging CDs between the reproducing section 14 and the magazine section 12, and that adjusts the output level of the CD reproduction signal (analog audio signal) It comprises an output level adjusting section 18 as an adjusting means, a CD reproducing section 14, a CD exchanging mechanical section 16, a system microcomputer 20 for controlling the output level adjusting section 18, and an operating section 22 connected to the system microcomputer 20.

The magazine section 12 can store four CDs in this embodiment,
Each CD is numbered 1 to 4.

The CD reproducing unit 14 performs a normal PLAY performance for a CD by the normal performance control by the system microcomputer 20 and a peak search performance by the peak search control.

The CD exchanging mechanism section 16 causes the CD exchanging control section of the system microcomputer 20 to return the finished CD from the CD reproducing section 14 to the magazine section 12 or to return the CD to be performed from the magazine section 12
It is taken out from and set in the CD playback unit 14.

The output level adjusting unit 18 can change the gain (attenuation amount) in a plurality of stages, and when set to the variable mode under the control of the system microcomputer 20, the output level from the output level adjusting unit 18 is a predetermined constant value. Each time the peak level of the CD playback signal that exceeds the level is input, the amount of attenuation is increased by one step and the output level from the output level adjusting unit 18 is automatically increased to the maximum level within the range where the peak does not exceed a certain level. It has the function of adjusting and stabilizing the peak level.

Further, when the output level adjusting section 18 is set to the fixed mode under the control of the system microcomputer 20, thereafter, the attenuation amount is fixed.

Further, the output level adjusting unit 18 is the initial setting control by the system microcomputer 20 regardless of the variable mode or the fixed mode,
The amount of attenuation can be set to zero (maximum gain).

The output side of the output level adjusting unit 18 is connected to the line output terminal L _OUT .

As shown in FIG. 1, the operation section 22 includes CD select keys 24 to 30 and a PLAY key 32 as a CD selecting operation means, and a CCRS as a peak level automatic adjusting performance / recording command generating operation means.
A key 34 is included, and a key-on signal according to a user's key-on operation is output to the system microcomputer 20.

The system microcomputer 20 is composed of a CPU, a ROM, and a RAM connected to a bus, and based on a predetermined program stored in the ROM,
Depending on the user's key operation, the CD for the CD replacement mechanical unit 16
Exchange control, normal performance control for the CD playback unit 14, peak search control for the CD playback unit 14, variable mode switching control before peak search for the output level adjustment unit 18, initial setting control, and fixed mode at the end of peak search Peak search and output level automatic adjustment control consisting of switching control,
Various control processes such as performance control after the peak search for the CD reproducing unit 14 and synchronous recording control for the external system deck 40 after the peak search are executed.

A series of controls from peak search control to synchronous recording control
Peak level automatic adjustment performance / recording control.

The output side of the recording control signal of the system microcomputer 20 is connected to the control output terminal C _OUT .

The CD exchange mechanism section 16 and the system microcomputer 20 constitute a CD exchange means.

The line output terminal L _OUT and control output terminal C _OUT of the system multi-CD player 10 are the line input terminals of the system deck 40.
It is connected to L _IN and the control input terminal C _IN .

In the system deck 40, the line level input terminal L _IN is connected to a recording level manual adjustment unit 42 including a recording level adjustment VR, and the user can adjust the recording level arbitrarily by turning the adjustment knob.

The output side of the recording level manual adjustment section 42 is connected to one input terminal a of the changeover switch 44, and the other input terminal b of the changeover switch 44 is connected to the line input terminal.
L _IN is connected.

The changeover switch 44 is controlled to be changed over by the system microcomputer 46, and is changed over to the side a during normal recording and the side b during automatic peak level adjustment / recording.

To the output side of the changeover switch 44, a tape recording section 48 as a tape recording means including a line amplifier, an AC bias circuit, a magnetic head, and a tape running system is connected.

The tape recording section 48 starts or stops recording on the tape under the control of the system microcomputer 46.

The system microcomputer 46 has an operation unit 50 and a control input terminal C _IN.
Are connected.

The operation unit 50 is provided with a REC key, a STOP key, etc., and outputs a key-on signal according to a user's key-on operation to the system microcomputer 46.

The system microcomputer 46 is composed of a CPU, a ROM, and a RAM connected to a bus, and based on a predetermined program stored in the ROM, a normal recording control according to a user's key operation on the operation unit 50 (to the a side for the changeover switch 44) And the synchronous recording control based on the recording control signal input from the system multi-CD player 10 side (including the switching control to the side b with respect to the changeover switch 44).

Next, the operation of this embodiment will be described with reference to the flow charts of FIGS.

2 to 4 show the operation in the system microcomputer 20 of the system multi-CD player 10, and FIG. 5 shows the operation of the system microcomputer 46 in the system deck 40.

The system microcomputer 20 of the system multi-CD player 10 is
I is cleared when the power switch is turned on (second
Step 60 in the figure).

First, for example, the second and third stored in the magazine section 12.
If you want to perform automatic peak level adjustment performance / recording for the second CD in sequence, set the cassette tape on the system deck 40 in advance, and then operate the system multi-CD player 10.
Turn on the CD select keys 26 and 28 provided in 22 in succession,
Finally, turn on the CCRS key 34.

When the CD select key 26 is turned on and a key-on signal is input to the system microcomputer 20, it is determined that there is a CD selection operation (step 62), and the selection number "2" is registered in the RAM as N _i = N ₁ (step). 64).

After i is incremented to 2 (step
66), after confirming that i does not exceed 4, wait for another CD selection operation, PLAY key 32 ON operation, or CCRS key 34 ON operation (step 66).
~ 76).

Next, when the CD select key 28 is turned on, the system microcomputer 20 determines YES in step 70 and sets the selection number "3" to N.
Register _i = N ₂ in RAM (step 64).

Then, i is incremented to 3 (step 6)
Four).

Next, when the user turns on the CCRS key 34 and the key-on signal (peak level automatic adjustment performance / recording command signal) related to the CCRS key 34 is input from the operation unit 22 to the system microcomputer 20, it is determined to be YES in step 74. Then, the process proceeds to step 100 of FIG. 3 and first, j = 1 is set, and N _j = N ₁ = “2” is referred to and the CD
The exchange mechanism section 16 is controlled to eject the second CD from the magazine section 12 and set it in the CD reproducing section 14 (step 10).
2).

Then, the system microcomputer 20 controls the output level adjusting unit 18 to the variable mode, and also performs the initial setting control to make the attenuation amount zero (the state of maximum gain) (step 10).
Four).

Then, referring to the TOC information of the CD, peak search control is performed on the CD playback unit 14 for the first to third songs, 15 seconds before the end of each song, and the last song for the last song. For 15 seconds to perform a peak search (step 10
6).

These playing ranges are those where the probability that the maximum peak level of CD appears statistically is extremely high.

During this peak search, the CD reproduction signal is input from the CD reproduction unit 14 to the output level adjustment unit 18 for a performance time of 15 seconds for each song.

Since the output level adjuster 18 is initially set to the maximum gain in the variable mode, the amount of attenuation is increased each time a large CD reproduction signal whose output level of the output level adjuster 18 exceeds a predetermined constant level is input. Is gradually increased.

Therefore, when the peak search performance of each song is completed, the output level adjusting unit 18 automatically sets the peak level of the line output to the maximum level within a range not exceeding a predetermined constant level during CD playback, and keeps the peak level constant. Try to change.

When the peak search is completed, the system microcomputer 20 controls the output level adjusting unit 18 to set the fixed mode, and thereafter,
The setting level of the output level adjusting unit 18 is prevented from changing carelessly (YES in step 108, 110).

Then, the CD reproducing unit 14 is controlled to reproduce the CD from the beginning of the first music, and the REC start control signal is output to the system deck 40 side through the control signal output terminal C _OUT (steps 112 and 114). .

After that, the system microcomputer 20 waits for the performance of the CD to be completed (step 116).

The CD reproduction section 14 reproduces the CD reproduction signal, and the output level adjustment section 18
After the necessary attenuation is applied at, it is output to the system deck 40 side via the line output terminal L _OUT .

On the other hand, on the system deck 40 side, after the power switch is turned on, the system microcomputer 46 repeatedly determines whether or not the operation unit 50 has the REC key ON operation and whether or not the REC start control signal is input. Cage (Step 20 in Figure 5)
0, 202), and when a REC start control signal is input via the control input terminal C _IN , it is determined to be YES in step 202. At this time, the system microcomputer 46 controls the changeover switch 44 to switch to the b side, The recording level on the side is fixed to the maximum predetermined level (step 204).

Then, REC start control is performed on the tape recording unit 48 to record the audio signal input from the line input terminal L _IN via the changeover switch 44 on the tape (step 206).

At this time, the peak of the line input is adjusted to the optimum level on the output level adjusting section 18 side, and the tape is recorded at the optimum level without signal distortion regardless of the type of CD.

After that, the system microcomputer 46 waits for a REC stop control signal to be input from the system multi-CD player 10 side via the control input terminal C _IN (step 208).

When the playing of the CD is completed on the system multi-CD player 10 side, the system microcomputer 20 performs STOP control to the CD reproducing section 14 to stop the playing of the CD (step of FIG. 3).
When YES is determined in 116, 118), a REC stop control signal is output to the system deck 40 side (step 120).

Then, the CD exchange mechanism section 16 is controlled to return the CD to the original position of the magazine section 12 (step 122).

On the other hand, in the system deck 40, the system microcomputer 46, to which the REC stop control signal is input, performs the REC stop control on the tape recording unit 48 to stop the recording on the tape (YES in step 208 of FIG. 5, 210). .

After the processing of step 122 in FIG. 3, j (= 1) ≠ i−
Since it is 1 (= 2), the system microcomputer 20 makes a step 124.
When NO is determined in step S11, j is incremented to 2 (step 126), the process returns to step 102, and the same process as described above is repeated for the CD with N ₂ = “3”, and the peak for the third CD is reached. Automatic level adjustment Perform and record.

When the third CD is finished playing, j = i-1 =
Since it is 2, the system microcomputer 20 returns to step 60 of FIG. 2 after judging YES in step 124
Ends the continuous peak level automatic CD performance and recording process.

If you want to automatically perform peak level adjustment and record only the second CD, turn on the CD select key 26 and then the CCRS key.
It suffices to turn on 34. At this time, when the performance of the second CD ends, j = i-1 = 2, so the system microcomputer 20 determines YES in step 124, and automatically adjusts and records the peak level. The process ends.

Unlike this, the recording level manual adjustment section provided on the system deck 40 for the second and third CDs.
If you want to record at the manually set recording level by operating step 42, set the cassette tape on the system deck 40 and then first select the CD select keys 26 and 28 of the operating section 22.
Then, turn on, and finally turn on the PLAY key 32.

As the CD select keys 26 and 28 are turned on, the system microcomputer 20 registers N ₁ = “2” and N ₂ = “3” (second
Steps 62-70, 64, 66 in the figure).

At this time, i = 3.

Next, when the key-on signal accompanying the ON operation of the PLAY key 32 is input from the operation unit 22, the system microcomputer 20 determines YES in step 72, moves to step 150 in FIG. 4, and first sets j = 1. To do.

Then, the CD exchange mechanism section 16 is controlled to set the second CD corresponding to N _j = N ₁ = “2” in the CD reproducing section 14 (step 15
2) After confirming that the CCRS key 34 has not been turned on (step 154), the output level adjusting unit 18 is controlled to perform the initial setting in the fixed mode so that the attenuation amount becomes zero (step 156). .

Then, the CD reproducing section 14 is controlled so that a normal performance is performed from the beginning of the first music (step 158).

At this time, the CD reproduction signal output from the CD reproduction unit 14 is line-output and input to the system deck 40 without being attenuated.

The system microcomputer 20 executes CCRS after the processing of step 158.
The determination as to whether or not the key 34 has been turned on and the determination as to whether or not the CD performance has ended are repeated (steps 160 and 16).
2).

On the other hand, when the REC key of the operation section 50 of the system deck 40 is turned on at the time when the CD performance starts, the system microcomputer 46 is energized by the key-on signal output from the operation section 50 and the system microcomputer 46 moves to the side a relative to the changeover switch 44. The switching control to the tape recording unit 48 and the REC start control to the tape recording unit 48 are performed (steps 200, 212 and 214 in FIG. 5).

As a result, the line-input audio signal is recorded on the tape at the recording level desired by the user set by the recording level manual adjustment unit 42.

When the reproduction of the second CD is completed, the system microcomputer 20 determines YES in step 162, performs STOP control on the CD reproduction section 14 and stops the performance of the second CD (step 16).
4) Return the CD to the original position of the magazine section 12 by controlling the CD exchange mechanism section 16 (step 166).

Then, it is determined whether or not j = i−1 (step 16
8) In this case, j (= 1) ≠ i−1 (= 2), so
The system microcomputer 20 determines NO, increments j by 2 (step 170), returns to step 152, and then performs the same process as described above for the third CD indicated by N ₂ to perform normal operation. Let them play.

As a result, the audio signal of the third CD is recorded at the recording level desired by the user on the system deck 40 side.

In step 168 after the performance of the third CD, j = i-1 = 2, so YES is determined, and the process returns to step 60 in Fig. 2 to return to the normal continuation of the second and third CDs. Stop playing.

When the user finishes playing the third CD, the operation unit 50
When the STOP key is turned on, the system microcomputer 46 is energized by the key-on signal input from the operation unit 50 to perform REC stop control to the tape recording unit 48 and stop recording on the tape (step in FIG. 5). If 216 is YES, 218).

If you want to record and adjust the recording level of the second CD manually and then perform peak level automatic adjustment performance / recording for the third CD, when you have finished playing the second CD Turn on the STOP key on the operation unit 50 to temporarily stop the tape recording, and the third CD
The CCRS key 34 may be turned on after being set in the reproducing section 14.

For example, when the CCRS key 34 is turned on before the performance of the third CD starts, the system microcomputer 20 determines YES in step 154 of FIG. 4, and at this time, moves to step 174, and By the same processing, the peak level automatic adjustment performance and recording are performed for the third CD (step 17).
YES determination in 4-190, 166, 168, step 202 in FIG.
210).

When the CCRS key 34 is turned on after the start of the third CD, it is determined to be YES in step 160, and once the CD playback section 14 is instructed.
After performing STOP control (step 172), the process proceeds to step 174.

After turning on the CD select keys 26 and 28 and the PLAY key 32,
CCRS key 34 before or during the second CD performance
When is turned on, the peak level automatic adjustment performance / recording is performed only for the second CD (step 154).
YES judgment, 174-190, 166, 168 NO judgment, 170, 15
2, again, YES in step 160, 172-190, 166, 16
NO judgment at 8, 170, 152, steps 202 to 21 of FIG.
0), the user needs to turn on the REC key and the STOP key of the operation unit of the system deck 40 when the normal performance of the third CD starts and ends.

It should be noted that, after determining YES in step 154 and after the process of step 172, instead of proceeding to step 174 of FIG. 4, if the process proceeds to step 104 of FIG. 3, the second C
If the CCRS key 34 is turned on after D is set and before the second CD is played, the second and third CDs
On the other hand, it is possible to continuously perform automatic peak level adjustment performance and recording.

In contrast to this, when the user wants to perform peak level automatic adjustment performance / recording for all the CDs No. 1 to No. 4 stored in the magazine unit 12, set the cassette tape on the system deck 40 and then select CD. Keys 24-30 and PLAY
The CCRS key 34 may be turned on immediately without the key 32 being turned on.

Then, the system microcomputer 20 determines YES in step 78 of FIG.
And N ₁ = “1”, N ₂ = “2”, N ₃ = “3”, N ₄ =
After setting “4” and i = 4 (step 80),
Since the process proceeds to the third step 100, the peak level automatic adjustment performance / recording is continuously performed from the first CD to the fourth CD by repeating the same process as described above.

If the player wants to normally play the first to fourth CDs, he or she may turn on the PLAY key 32 without turning on the CD select keys 24 to 30 or the CCRS key 34.

Then, the system microcomputer 20 performs YE in step 82 of FIG.
Judged as S, N ₁ = “1”, N ₂ = “2”, N ₃ = “3”, N ₄
= “4” and i = 4 (step 8
4) Then, the operation proceeds to step 150 in FIG. 4, so that the same processing as described above is repeated, and the normal performance is continuously performed from the first CD to the fourth CD.

According to this embodiment, when two or more CDs are selected by the CD select key, the PLAY key 32 is turned on to start a normal continuous performance, and then the CCRS key 34 is turned on, the set is started.
For the CD or only one CD that is currently playing but has not finished playing, if the system microcomputer 20 has not set the CD, set it in the CD playback unit 14, then set the CD playback unit 14 and the output level. After performing peak search and automatic output level adjustment control on the adjustment section 18, performance control for the CD playback section 14 and synchronous recording control for the system deck 40 are performed, so
Even a CD player user can play and record the peak level automatically, which is convenient.

And if there are multiple desired CDs to record, the user may
After selecting multiple CDs you want to record with the select key and starting continuous performance, simply CC for each CD you want to record immediately before or during the performance of the CD you want to record.
By simply turning on the RS key 34, you can perform peak level automatic adjustment performance and recording from each desired recording CD to tape, and the operation is easy. In addition, you can select multiple CDs that you want to record at the same time, so you can select the same CD by mistake and select the same CD twice rather than repeat the selection and the peak level automatic adjustment performance / recording. And there are no recording mistakes such as recording twice.

In this regard, when the peak level automatic adjustment performance / recording control that was done with the conventional one-disc system CD player and system deck is simply applied to the multi-CD player,
Select one CD for recording, perform peak level automatic adjustment performance / record command generation operation, and select the next one for recording
If CD selection, peak level automatic adjustment performance / recording, and more than one desired CD for recording, the user first selects the multiple CDs desired to be recorded with the CD select key, starts the continuous performance, and then simply , CD for each desired recording CD
Just by turning on the CCRS key 34 immediately before or during the performance of, the peak level automatic adjustment performance / recording from each desired recording CD to the tape is possible, and the operation is easy.
Also, you can select multiple CDs that you want to record at the same time, so you can select the same CD one by one by mistake rather than selecting the desired CDs and automatically adjusting the peak level. And there are no recording mistakes such as recording twice.

In this regard, when the peak level automatic adjustment performance / recording control that was done with the conventional one-disc system CD player and system deck is simply applied to the multi-CD player,
Select one CD for recording, perform peak level automatic adjustment performance / record command generation operation, and select the next one for recording
If CD selection, peak level automatic adjustment performance / recording, and more than one desired CD for recording, the user first selects the multiple CDs desired to be recorded with the CD select key, starts the continuous performance, and then simply , CD for each desired recording CD
Just by turning on the CCRS key 34 immediately before or during the performance of, the peak level automatic adjustment performance / recording from the desired recording CD to the tape is possible, and the operation is simple.
In addition, you can select multiple CDs that you want to record at the same time, so you can select the same CD by mistake and select the same CD twice rather than repeat the selection and the peak level automatic adjustment performance / recording. And there are no recording mistakes such as recording twice.

In this regard, when the peak level automatic adjustment performance / recording control that was done with the conventional one-disc system CD player and system deck is simply applied to the multi-CD player,
Select one CD for recording, perform peak level automatic adjustment performance / record command generation operation, and select the next one for recording
CD selection, peak level automatic adjustment Performance / recording means for inputting the disc playback signal to be recorded and recording on a specified recording medium, and multiple discs selected by the disc selection operation means, playing one disc Each time, is finished,
After the disc exchange means to be taken out from the disc storage means and set in the disc playback means and the disc to be played is selected by the disc selection operation means, while the new peak level automatic performance / record command is not issued, the disc is played back. The normal performance control means for performing the normal performance control of the disk set in the disk reproducing means while the output level adjusting means is fixed at a predetermined level while the normal performance control is performed for the means. When a peak level automatic adjustment performance / recording command is issued before the performance of all the played discs is finished, a predetermined peak search control for the disc playing means is performed only for one disc that is being played or is currently playing. In addition, the output level adjusting means provides a predetermined peak level for stabilizing the peak level. After to perform an integer, and performance control for the disk reproducing means, and the peak level automatic adjustment performed and recorded control means for the peak level automatic adjustment performed and recorded control include making synchronous recording control for recording means,
By including the above, it becomes convenient for the user of the multi-disc player to easily perform the recording at the optimum level regardless of the difference in the recording level for each disc.

Moreover, if there are multiple recording-desired discs, the user first selects a plurality of discs that he / she wants to record, starts the continuous performance, and then simply starts playing the recording-desired disc for each recording-desired disc. Just before and during the performance, the peak level automatic adjustment performance / recording command is generated, and the peak level automatic adjustment performance / recording from a desired recording medium to a predetermined recording medium becomes possible, which simplifies the operation.

In addition, since a plurality of discs desired to be recorded can be selected in a lump at the beginning, a recording error such as accidentally selecting the same disc twice and recording twice does not occur.

Also, the peak level automatic adjustment performance / recording control means, when the peak level automatic adjustment performance / recording command is issued,
Instead of targeting only one disc that is being played or is currently playing, among the discs selected by the disc selecting operation means, the discs that have not been played yet are the target and the peak level is automatically adjusted for each disc. By performing performance / recording control, it is possible to continuously perform peak level automatic adjustment performance / recording for multiple desired discs only by generating a peak level automatic adjustment performance / recording command once.
You can save the trouble of generating peak level automatic adjustment performance and recording commands for each desired disc.

Furthermore, when a peak level automatic adjustment performance / recording command is issued before the disc is selected by the disc selection means, all the discs are treated as selected by the disc selection operation means, so that one-touch operation is possible. You can perform continuous peak level automatic adjustment performance and recording of all discs.

[Brief description of drawings]

FIG. 1 is a block diagram of a CD recording system according to an embodiment of the present invention, FIGS. 2 to 4 are flow charts showing the operation of the system multi-CD player in FIG. 1, and FIG. 5 is in FIG. 3 is a flowchart showing the operation of the system deck of FIG. Explanation of main symbols 10: System multi-CD player, 12: Magazine section, 14: CD
Playback section, 16: CD exchange mechanism section, 18: Output level adjustment section, 20, 4
6: System microcomputer, 24-30: CD select key, 32: PLAY
Key, 34: CCRS key, 40: System deck.

Claims (3)

[Scope of utility model registration request] 1. A disk storage means for storing a plurality of disks, a disk selection operation means for selecting a plurality of disks to be continuously played, and a command generation operation for performing a peak level automatic adjustment performance / recording command generation operation. Means, a disc reproducing means for reproducing the disc, an output level adjusting means for adjusting the output level provided on the output side of the disc reproducing means, and a disc reproducing signal outputted from the output level adjusting means for input. A recording means for recording on a predetermined recording medium, and a plurality of disks selected by the disk selection operation means,
After each performance of one disc is completed, a disc exchanging means for taking out the disc from the disc storing means and setting it in the disc reproducing means, and a disc to be played by the disc selecting operation means are selected, and then a new peak level is automatically adjusted. While the performance / recording command is not issued, the disc playback means is controlled as usual and the output level adjusting means is fixed to a predetermined level to perform the normal performance of the disc set in the disc playback means. The normal performance control means and the peak level automatic adjustment performance / recording command is issued, the predetermined peak search control for the disk playback means is performed for only one disk immediately before the performance or the current performance, and the output level is controlled. After making the adjustment means perform the predetermined peak level adjustment for constant peak level,
A disk recording system comprising: a peak level automatic adjustment performance / recording control means for performing performance control for the disk reproduction means and a synchronous recording control for the recording means; . 2. A peak level automatic adjusting performance / recording control means selects a disk instead of targeting only one disk immediately before or when a peak level automatic adjusting performance / recording command is issued. The automatic peak level adjustment performance / recording control is performed for each disk among the disks selected by the operating means, for which the performance has not been completed yet. Disk recording system. 3. A disc selecting operation means handles all the discs when a peak level automatic adjusting performance / recording command is issued while the disc selecting means does not select the discs. The disk recording system according to claim 2.