JP2689441B2 - Automatic recording level display - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic recording level display for automatically setting a recording level and displaying the process when an information signal reproduced by an optical disk reproducing device is recorded by a tape recorder or the like. It relates to the device. 2. Description of the Related Art In recent years, an automatic recording level display device of this type has been commercialized that has an electronic volume as a level adjusting means and a function of automatically adjusting a recording level. An example of the above-described conventional automatic recording level display means will be described below with reference to the drawings. FIG. 4 is a block diagram of a main part of a conventional automatic recording level display device. In FIG. 4, numeral 20 is composed of an optical pickup or the like for reading music signals recorded on an optical disc (hereinafter referred to as a disc) and performance time information. The peak value of the music signal is searched and the vicinity of the peak value is output. While the disc reproducing means is in a pause state, 21 is an operation command inputting means for inputting a search operation command of a peak value, 22 is a logical signal outputting means for outputting a predetermined logical signal after the search operation is completed, and 23 is a disk reproducing means. 20, operation command input means
21, a logical operation means for controlling the logical signal output means 22, 24 is an optical system such as a compact disk player comprising a disk reproducing means 20, an operation command input means 21, a logical signal output means 22, a logical operation means 23 and the like. It is a disk reproducing device. Reference numeral 25 is a magnetic head for recording a music signal reproduced by the optical disk reproducing device 24 on a recording medium (magnetic tape or the like),
Recording means comprising a drive unit and the like (not shown), 26 is recording means
A level adjusting means such as an electronic volume for adjusting the level of a recording signal (music signal reproduced by the optical disc reproducing device 24) input to 25, and 27 for controlling DA of the level adjusting means 26. The converting means 28 is a peak hold section 29 for holding the peak value of the recording signal supplied via the level adjusting means 26, and an AD for converting the peak hold value held by the peak hold section 29 into a DC voltage value. Converter 30
And a DC voltage value converted by the A / D converter 30 with a predetermined reference voltage value, and outputs a predetermined control signal from the comparator 31 and the logic signal output means 22. An automatic control signal generating means, which is activated by a logic signal and stops counting by the control signal from the comparing portion 31, and an automatic control signal generating means, 33 indicates the level of the recording signal input through the level adjusting means 26. Display means for performing 34, control means for controlling the recording means 25, 35 for recording means 25, level adjusting means 26, DA converting means 27, automatic control signal generating means 28, display means 33, control means.
It is a recording device such as a tape recorder provided with 34 or the like. The operation of the automatic recording level display device configured as described above will be described below with reference to FIG. First, when the user inputs a peak level search operation command from the operation command input means 21 of the optical disk reproducing device 24 to the logical operation means 23, the logical operation means 23 controls the disk reproduction means 20 and the optical pickup While moving in the outer peripheral direction, the peak level music signal is automatically recorded by repeating the operation of storing the larger value compared to the previous value each time the signal level recorded on the disc is input. The position is detected, and the music signal is output at that position to enter the pause state. Further, the logical signal output means 22
Is also controlled, and a predetermined logic signal is output and supplied to the recording device 35 together with the searched peak level music signal. Then, the predetermined logic signal is supplied to the counting section 32 of the automatic control signal generating means 28 to activate it. Then, the peak level music signal is adjusted by the level adjusting means.
It is held in the peak hold unit 29 via 26, converted into a DC voltage in the A / D converter 30, and compared with a predetermined reference voltage in the comparator 31, and then is counted by the counter as a predetermined control signal.
The counter that was supplied to 32 and was previously activated by a predetermined logic signal
The counting of 32 is stopped, and an automatic control signal for automatically controlling the level adjusting means 26 is generated. This automatic control signal is supplied to the DA converting means 27, converted into a DC voltage value, and the adjustment amount of the level adjusting means 26 is automatically controlled. As a result, a proper recording level of the music signal to be recorded is set, and the recording means 25 records it on a magnetic tape or the like. At the same time, the result adjusted by the level adjusting means 26 is suddenly displayed on the display means 33 provided via the level adjusting means 26 as the set level. Problems to be Solved by the Invention However, in the above configuration, although the automatic recording level setting is performed by the peak level value of the music signal reproduced by the optical disc reproducing apparatus, the user completes the setting and Until the start of the operation (until recording is started), I had no choice but to wait with anxiety as to whether the recording device was operating normally, and there was always the user's anxiety about automation. . In view of the above problems, the present invention allows a user to visually confirm a process of automatically adjusting a music signal or the like reproduced by an optical disc reproducing device to a level suitable for recording on a display unit (level meter or the like). An automatic recording level display device is provided. Means for Solving the Problems In order to solve the above problems, the automatic recording level display device of the present invention is in a pause state in which the peak value of the signal recorded on the disk is searched and the vicinity of the peak level is output. A disc reproducing means; a logical signal output means for outputting a predetermined logical signal after the search operation is completed; and a reproducing device comprising a logical operation means for controlling the disc reproducing means and the logical signal output means, Recording means for recording a signal reproduced by the reproducing device on a recording medium, level adjusting means for adjusting the level of a recording signal input to the recording means, and an adjustment amount of the level adjusting means by the disk reproducing means. An automatic control signal generating means for automatically controlling according to the detected peak value, and a level table of the recording signal inputted through the level adjusting means. A recording device comprising display means for displaying, a recording means, and a control means for controlling the automatic control signal generating means, and after searching the peak value of the signal recorded on the disc, the logic By outputting the predetermined logic signal from the signal output means and supplying it to the control means, the automatic control signal generation means is controlled, and recording is performed after the level attenuation amount of the level adjustment means once reaches the maximum or minimum. Control the signal you are trying to achieve to an appropriate recording level,
The display means displays the adjustment process of the level adjusting means. Effect of the Invention With the above-described structure of the present invention, when the optical disc reproducing device finishes searching the peak value of the music signal recorded on the disc, the level adjusting means is automatically controlled to adjust to an appropriate recording level. At this time, since the level adjustment amount is once set to the maximum or minimum and the recording level is gradually adjusted to an appropriate level, the display unit provided via this level adjustment unit has , The adjustment process will be displayed. Embodiment An automatic recording level adjusting apparatus according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a main part of a recording level adjusting apparatus according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a disk reproducing means including an optical pickup for reading music signals recorded on an optical disk (hereinafter, referred to as a disk) and performance time information, and searches for a peak value of the music signal or the like of the disk. , While the recording signal near the peak value is being output, a pause state (that is, a state of repeated reproduction) can be achieved. 2 is an operation command input means for inputting a search operation command for a peak value, 3
Is a logic signal output means for outputting a predetermined logic signal after the search operation is completed. Reference numeral 4 is a logical operation means for controlling the disk reproducing means 1, the operation command input means 2, and the logical signal output means 3. Reference numeral 5 denotes a reproducing device, which comprises the above-mentioned disc reproducing means 1, first and second operation command input means 2, logical signal output means 3, logical operation means 4 and the like. Reference numeral 6 denotes a recording means, which is composed of a magnetic head for recording the music signal reproduced by the reproducing apparatus 5 on a recording medium (magnetic tape or the like), a drive unit and the like (not shown). Reference numeral 7 is a level adjusting means such as an electronic volume for adjusting the level of a recording signal (such as a music signal reproduced by the reproducing device 5) input to the recording means 6, and 8 is an automatic control of the adjustment amount of the level adjusting means 7 which will be described later. It is a DA converting means for receiving and controlling an automatic control signal from the signal generating means 9. The automatic control signal generator 9 includes a peak hold unit 10 that holds the peak value of the recording signal supplied via the level adjuster 7, and a piece hold unit 10.
The A / D conversion unit 11 for converting the peak hold value held by the DC voltage value into a DC voltage value and the DC voltage value converted by the A / D conversion unit 11 are compared with a predetermined reference voltage value. A comparator 12 that outputs a control signal based on the value of the difference, and a count that is started by the logic signal from the logic signal output means 3 and counts and stops the control signal (difference value) output from the comparator 12. Department
It is composed of 13 and. Reference numeral 14 is a display means for displaying the level of a recording signal input via the level adjusting means 7,
Is a control means for controlling the recording means 6 and the automatic control signal generating means 9, 16 is a recording means 6, a level adjusting means 7, a DA converting means 8, an automatic control signal generating means 9, a displaying means 14, a controlling means 15, A recording device such as a tape recorder provided with the above. The operation of the automatic recording level display device configured as described below will be described below with reference to FIG. First, when the user inputs a peak level search operation command from the operation command input means 2 of the reproducing apparatus 5 to the logical operation means 4, the logical operation means 4 controls the disk reproduction means 1 to move the optical pickup in the outer peripheral direction of the disk. The position where the music signal of the peak level is automatically recorded by repeating the operation of memorizing the larger value compared with the previous value each time the signal level recorded on the disk is input while moving. Is detected and a music signal is repeatedly output at that position, and a pause state is set. Furthermore, the logical operation means 4 causes the logical signal output means 3
Is also controlled so that a predetermined logic signal is output and supplied to the recording device 16 together with the searched peak level music signal. Then, the automatic control signal from the automatic control signal generating means 9 is changed to D by the control means 15 provided in the recording device 16.
It is supplied to the level adjusting means 7 via the -A converting means 8 and the level attenuation amount once becomes maximum. Further, the predetermined logic signal is also supplied to the counter 13 of the automatic control signal generator 9 to activate it. Then, the music signal of the peak level is held in the peak hold section 10 via the level adjusting means 7, and the first A-
After being converted into a DC voltage by the D conversion unit 11 and compared with a predetermined reference voltage by the comparison unit 12, it is supplied to the counting unit 13 as a predetermined control signal, and the counting is started by a predetermined logic signal first. The counting of the section 13 is stopped, and an automatic control signal for automatically controlling the level adjusting means 7 is generated. This automatic control signal is supplied to the D / A conversion means 8 and converted into a DC voltage value, and automatically controlled so that the adjustment amount of the level adjustment means 7 gradually becomes the set value. As a result, an appropriate recording level of the music signal to be recorded is set and recorded on the magnetic tape or the like by the recording means 6. At the same time, the adjusting process is displayed on the display means 14 provided via the level adjusting means 7. As described above, according to the present embodiment, the disc reproducing means in the pause state in which the peak value of the signal recorded on the disc is searched for and the vicinity of the peak level is output, and the predetermined operation after the search operation is completed. A reproducing apparatus comprising a logical signal output means for outputting a logical signal, the disk reproducing means, and a logical operation means for controlling the logical signal outputting means, and a signal reproduced by the reproducing apparatus is recorded on a recording medium. Via the recording means, the level adjusting means for adjusting the level of the recording signal input to the recording means, the automatic control signal generating means for automatically controlling the adjustment amount of the level adjusting means, and the level adjusting means. A recording device comprising a display means for displaying the level of the input recording signal, and a control means for controlling the recording means and the automatic control signal generating means. After searching the peak value of the signal recorded on the disc, the predetermined logical signal is output from the logical signal output means and supplied to the control means to control the automatic control signal generation means, By controlling so that the level attenuation amount of the level adjusting means becomes a predetermined level attenuation amount after once becoming maximum or minimum, and by providing the display means to display the adjustment process of the level adjusting means, The user can easily and properly adjust the recording level of the music signal reproduced by the optical disc reproducing device, and at the same time, visually check the process of automatic recording level adjustment. You can relieve the anxiety even a little. A second embodiment of the present invention will be described below with reference to FIGS.
This will be described with reference to the drawings. FIG. 2 is a block diagram of a main part of an automatic recording level display device according to a second embodiment of the present invention, in which the same components as those in the first embodiment are designated by the same reference numerals. FIG. 3 is a timing chart for explaining the operation. First, in FIG. 2, 1 is a disk reproducing means, 2 is an operation command inputting means, 3 is a logical signal outputting means, 4 is a logical operation means, 5 is an optical disk reproducing apparatus, 6 is a recording means, and 7 is a recording means.
Is a level adjusting means, 8 is a D-A converting means, 9 is an automatic control signal generating means, and 14 is a displaying means. The above is the same as the configuration of FIG. The difference from the configuration of FIG. 1 is that the muting means 18 is provided in series or in parallel with the response time determining section (not shown) of the level display means 14 and is controlled by the control means 17. . The operation of the automatic recording level display device configured as described above will be described below. In FIG. 2 as well, an appropriate recording level of a music signal or the like to be recorded is set by the same operation as in FIG. 1, and at the same time, a display means 14 provided via the level adjusting means 7 is provided.
The adjustment (setting) process will be displayed on the display. Generally, the response time determining unit (time constant circuit) that determines the response time (attack time, recovery time) of the level is displayed on the display means such as the level. Since (not shown) is provided in the input section or the like, the timing t at which the logic signal is supplied to the control means 17 as shown in the timing chart of FIG.
Then, the control signal is output from the automatic control signal generating means 9 so that the attenuation amount of the level adjusting means becomes the maximum once. However, since the display unit does not instantly have zero shake due to the recovery time described above, the muting control signal is output from the control unit 17 so that the muting unit 18 is activated at the timing t, and thus The response time determination unit is set in the inoperative state, and the shake of the display unit 14 is adjusted to the timing at which the level adjusting unit 7 once maximizes the attenuation amount. As described above, the muting means is provided in series or in parallel with the response time determination unit of the level display means, the muting means is controlled by the control means, and the logic signal is supplied to the control means. When it is supplied, the muting means is controlled so as to operate in synchronization with the operation timing of the level adjusting means where the level attenuation once becomes maximum or minimum. It is possible to accelerate the recovery time of the response time determining unit by operating the muting means, and as a result, the visual adjustment operation of the display means can be performed in synchronization with the level adjustment means once maximizing the attenuation amount. Therefore, the user can visually check the process of the appropriate automatic recording level adjustment. As described above, the present invention searches the peak value of the signal recorded on the disk and outputs the disk reproducing means in the vicinity of the peak level, and the disk reproducing means in a pause state. A reproducing apparatus comprising a logical signal output means for outputting a logical signal, the disk reproducing means, and a logical operation means for controlling the logical signal outputting means, and a signal reproduced by the reproducing apparatus is recorded on a recording medium. Via the recording means, the level adjusting means for adjusting the level of the recording signal input to the recording means, the automatic control signal generating means for automatically controlling the adjustment amount of the level adjusting means, and the level adjusting means. A recording apparatus comprising a display means for displaying the level of the input recording signal, and a control means for controlling the recording means and the automatic control signal generating means. The automatic control signal generating means is controlled by outputting the predetermined logical signal from the logical signal output means after searching the peak value of the signal recorded on the disc and supplying the predetermined logical signal to the control means. The level adjustment means is controlled such that the level attenuation amount once reaches the maximum or minimum and reaches a predetermined level attenuation amount, and the display means displays the adjustment process of the level adjustment means. This allows the user to easily and appropriately adjust the recording level of the music signal reproduced by the reproducing device, thereby eliminating the troublesomeness and time constraint, and performing the process of automatic recording level adjustment. It is possible to provide an automatic recording level display device which can be visually confirmed and which can alleviate anxiety associated with automation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a main part of an automatic recording level display device according to a first embodiment of the present invention, and FIG. 2 is an automatic recording level display device according to a second embodiment of the present invention. FIG. 3 is a block diagram of a main part, FIG. 3 is a timing chart for explaining the operation of FIG. 2, and FIG. 4 is a block diagram of a main part of a conventional automatic recording level display device. 1 ... disk reproducing means, 2 ... operation command input means, 3
... Logic signal output means, 4 Logic operation means, 5 Reproduction device, 6 Recording means, 7 Level adjustment means, 8
... DA conversion means, 9 ... automatic control signal generation means, 14 ...
... display means, 15 ... control means, 16 ... recording device.

Claims (1)

(57) [Claims] Search for the peak value of the signal recorded on the disc,
A disk reproducing means in a pause state for outputting the vicinity of the peak level, a logic signal outputting means for outputting a predetermined logic signal after the search operation is completed, and a logic for controlling the disk reproducing means, the logic signal outputting means. A reproducing device including a computing device, a recording device for recording a signal reproduced by the reproducing device on a recording medium, a level adjusting device for adjusting the level of a recording signal input to the recording device, and the level. An automatic control signal generating means for automatically controlling the adjustment amount of the adjusting means according to the peak value detected by the disk reproducing means, and a display for displaying the level of the recording signal inputted through the level adjusting means. And a recording device that includes a recording unit and a control unit that controls the automatic control signal generating unit. After searching the peak value of the signal, the predetermined logical signal is output from the logical signal output means and supplied to the control means to control the automatic control signal generating means, and the level of the level adjusting means. It is configured such that a signal to be recorded is controlled to have an appropriate recording level after the attenuation amount once reaches the maximum or minimum and the display unit displays the adjustment process of the level adjustment unit. Automatic recording level display device.