JPH09180348A - Editing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect editorial element data backing up record management information by providing an auxiliary data area storing data for editing in addition to a main area storing the editorial element data. SOLUTION: An editorial list and a REC ID prepared by a new editing are rewritten on a disk 1 via a buffer 32 and a cross fader 20 at the time of a data saving or a disk ejecting. In this case, when the sound being an editorial element is recorded, a REC ID corresponding to this recording is generated to be stored, but unless the REC ID is saved in the auxiliary area of a disk, the recorded sound can not be reproduced. In a state prier to entering to the working saving the REC ID on the disk, the backup processing of the ID is performed by considering a time when the power source of a device is interrupted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an editing apparatus suitable for application when editing audio data or the like to construct one voice data. Specifically, a plurality of audio editing materials are recorded, at the same time, the recording management information related to the editing materials is recorded on the recording medium, and the editing materials are recorded and reproduced based on the recording management information. In this case, even if the power is turned off before the recording management information is stored in the recording medium, it can be backed up and the backed up recording management information can be recorded in the recording medium after the power is turned on normally. It was done like this.

[0002]

2. Description of the Related Art Recent audio editing apparatuses use a disc-shaped recording medium such as a magneto-optical disc instead of a tape-shaped recording medium, and record a plurality of audio materials on the disc-shaped recording medium.

FIG. 6 shows an example of a data area when an optical disk such as a magneto-optical disk is used as a recording medium. The disk 1 has an outer peripheral side for recording audio data used as audio material. A main data area 2 is provided, and an auxiliary data area 3 is provided on the inner peripheral side thereof.

In the auxiliary data area 3, recording management information at the time of recording and reproducing audio data is recorded, and in the figure, this area is further divided into an inner peripheral side and an outer peripheral side. In the main auxiliary data area (main AUX area) 3a located on the outer peripheral side and the sub auxiliary data area (sub AUX area) 3b located on the inner peripheral side,
The same auxiliary data (AUX data) is recorded. To enable editing material to be played back by using the readable auxiliary data recorded in the other area even when one of the auxiliary data cannot be read, so that the editing work up to now is not wasted. Is.

The address formed on the disk 1 is set so that the boundary point p between the main data area 2 and the auxiliary data area 3 becomes the address 0. The recording management information and the like recorded in the auxiliary data area 3 are recorded and reproduced on a page-by-page basis.
In (zero), recording management information and disc management information described later are recorded. Therefore, this page 0
Based on the record management information and the like recorded in (1), the editing material is cut out or added while referring to other pages.

FIG. 7 shows the relationship between the recording management information and the disc management information among the information recorded in the auxiliary data area. As the disc management information, an erase flag and TOC (Time Of
Contents), disc information and REC
There are four types of information.

The erase flag is for erasing the entire disc when erasing recorded information on the disc 1 (full erase).
This is a generic term for a flag or the like indicating whether it is a partial erase (instant erase).

The disc information is an identification code (disc ID (DISC I
D)) or the like, which uses a code generated by a random number generating means (hardware) provided in the main body of the apparatus. This disc ID has a 32-bit structure. The reason for increasing the number of bits is to reduce the reproducibility of the same random number and prevent the same disc ID from being issued. The disc ID is recorded in this disc information area when the disc is a raw disc.

The REC information is recording management information (REC ID (REC ID)), which is an identification code (recording start address and its end) added each time the audio material (editing material data) is recorded on the disc. Address).

In addition to disk management, there are user data and the like. The user data includes, in addition to the edit data, a list (mark list) indicating marks (marks) for editing attached to the editing material, and the user data and the mark list constitute an edit list (EDL). .

Although there are other auxiliary data than the above, they are not directly related to the present invention, and therefore detailed description thereof will be omitted.

[0012]

By the way, in this editing apparatus, the recording management information (REC ID) used as information for managing the recording data is stored in the memory provided on the apparatus main body side described above. ) Database, and the REC ID is recorded in the auxiliary data area 3 of the disc 1 when saving data or ejecting the disc. Then, the database for the REC ID re-read in the main body of the apparatus is searched, and the mute is released only in the section of the REC ID, so that the sound is output.

Therefore, if the sound material is recorded in the main data area 2 but the power switch is accidentally turned off or the power is cut off due to a power failure or the like before the recording ID is saved in the auxiliary area. , Rec ID cannot be saved in the disk 1. If the record ID is not saved, the sound recorded on the disc 1 cannot be reproduced as described above.

A consumer device such as a mini disc does not cause much problem, but when the editing device is used as a master recorder for mastering a compact disc CD, for example, the power is turned off and the editing work up to that point is wasted. The matter is crucial because it is on the brink of whether or not.

In the process of creating a master for producing a CD, the process of recording sounds (including voices and musical instrument sounds) influences the quality of the CD, so the editor is most nervous and the failure is allowed. This is a work process that is not performed.
This recording process is performed when directly recording directly from a musician or when a material once recorded on a multi-track recorder or the like is tracked down to a master disk.

Since recording over several hours is not uncommon in such a working process using an editing apparatus, even though the necessary sound is finally recorded on the disc at the end of the long recording, the recorded sound is recorded. If it cannot be reproduced, the damage will be very large. In some cases, it may not be possible to start over.

Considering this, the editing device (a tape recorder is frequently used) is provided in case of parallel operation in case of such a situation, so that two machines are always available. There are problems that operation costs are high and operation confirmation is troublesome due to parallel operation.

The present invention has solved the above-mentioned conventional problems. Even when the power is turned off before the recording management information is saved in the disc, the recording management information is backed up and recorded in the recording medium. The editing material data can be protected.

[0019]

In order to solve the above-mentioned problems, in claim 1, the editing material such as audio data is recorded in a recording medium together with the editing data. In addition to the main area for storing the editing material data, the medium is provided with an auxiliary data area for storing the editing data, and based on the recording management information for the recorded editing material data,
The recording / reproducing state of the editing material is managed, and when the device power is turned off before the recording management information is stored in the auxiliary data area, a flag indicating the recording management information and the power-off state is set in the device body. The feature is that it backs up.

In the present invention, a flag (procedure flag) indicating a power-off state according to the state (save procedure) is saved from the start of recording to the end of recording until the recording management information is saved on the disc. Back up to a specific memory area. When each save procedure has passed normally, the corresponding procedure flag is reset, and all procedure flags are reset (turned off) when the recording management information has been saved to the disc.

Therefore, no matter which procedure the power is cut off, the procedure flag is backed up and is not affected by the power cut. If the power is turned off before the recording management information is saved to the disc, the procedure flag immediately before that will remain set (on), so if you refer to this procedure flag when the power is turned on, It is possible to immediately determine from which procedure the process for saving the record management information should be started. This prevents the editing work from being wasted.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a case where an embodiment of an editing apparatus according to the present invention is applied to the above-described audio data editing apparatus will be described in detail with reference to the drawings.

FIG. 1 shows a specific example of the editing apparatus 10 according to the present invention. As the recording medium, a case is shown in which a disk (MO) that records and reproduces data by magneto-optical is used.

The data recording section 5 has a disk 1, which is rotationally driven by a spindle motor 11. An optical pickup means 12 which is movable by a linear motor 13 is arranged on the lower surface of the disk 1, and a laser emitted from the optical pickup means 12 is applied to the disk surface. On the other surface of the disk 1 facing the optical pickup means 12, a magnetic head 15 for recording / reproducing data while keeping a small gap is arranged so as to move in synchronization with the optical pickup means 12.

Linear motor 13 accompanying recording / reproducing of data
Is controlled and the motor 11 is controlled by a system controller (servo controller) 16 with a built-in CPU. Further, sound recording and reproduction are also performed under the intervention of the servo controller 16.

Therefore, the editing material (sound information, including phonemes) supplied to the terminal 18 is A / D converter 19.
Is converted into a digital signal having a predetermined number of bits, supplied to the encoder and modulator 21 via the crossfader 20, encoded in a data format for recording on the disk 1, and modulated. The modulated editing material is supplied to the magnetic head 15 via the buffer RAM 22 and the driver 23 and recorded in the main data area 2.

The editing material reproduced by the CPU 16 includes a harmonic amplifier and a clock generation PL for data reproduction.
It is temporarily stored in the buffer RAM 26 via L25. The editing material read from the RAM 26 by the CPU 33 is supplied to the demodulator and the decoder 27, where data demodulation processing and decoding processing are performed, and interpolation processing for error data is performed by the interpolation means 28 in the subsequent stage. . Further, based on the recording management information managed by the CPU 33, the reproduction mute means 29 controls on / off of mute for reproduction data. The interpolated editing material passes through the crossfader 30 and the D / A converter 31.
Is supplied to and is converted into an analog signal and output.

The TOC information read from the auxiliary area 3 of the disk 1 passes through a decoder 27, an interpolating means 28, a reproduction mute means 29, a crossfader 20, and a buffer 32 which functions for reading and writing auxiliary data. It is supplied to the system controller (main controller) 33.

A keyboard 35 having a display and a remote controller 36 are connected to the main controller 33, and editing instructions are issued from here. Therefore, the servo controller 16 and the main controller 33 are linked to each other. The auxiliary data read from the disk 1, especially the edit list and the record ID, are stored in a non-volatile memory, which is a working RAM (EPRAM) 37 in this example.
At the time of editing, a new editing work is performed with reference to this editing list and the like. The edited result is stored in the RAM 37 as an edited list and a record ID.

The edit list and the record ID created by new edit are stored in the buffer 32 and the crossfader 20 at the time of data saving or disk eject.
After that, the data is rewritten on the disc 1. The crossfader 29 described above is provided for switching (crossfading) between the edited audio material reproduced from the disc 1 and the input audio material before editing.

As described above, when a sound which is an editing material is recorded, a REC ID corresponding to the REC ID is generated and saved. Unless the REC ID is saved in the auxiliary data area 3 of the disc, the recorded sound is recorded. Cannot be reproduced. According to the present invention, the backup processing of the REC ID is performed in consideration of the case where the power source of the apparatus is cut off before starting the operation of saving the REC ID in the disk.

The power is cut off when the editor carelessly turns off the power or a power failure occurs during editing. Therefore, since it is not possible to specify at what timing the power-off occurs, the present invention creates a power-off state flag RIDBF, prepares a flag corresponding to the main editing procedure, and sequentially sets the flag as a procedure flag. Back up this while (flag on).

For example, as shown in FIG. 2, the flag RIDBF is 1
It is composed of 6 bits, of which the lower 4 bits (bits 0 to 3) are used as a procedure flag. Bit 0 is used as a procedure flag for sound recording, bit 3 is used for registering the REC ID in the RAM 37, and bit 2 is used as a procedure flag when the REC ID is saved in the disk. Bit 1 is used as a procedure flag during the period from registration in the RAM 37 to disk saving.

An example of backup processing of the REC ID using these procedure flags will be described with reference to FIG.

When sound recording is started, a backup area 37 in which a REC ID automatically issued and a procedure flag corresponding to the REC ID are provided in a part of the RAM 37.
a (see FIG. 1). The data in the backup area 37a can be backed up for about one week after the power is turned off.

When sound recording is started, at the same time as the backup of this REC ID, bit 0 constituting the power-off state flag RIDBF is set (= "1") (steps 41 and 42). All bits of the flag RIDBF including this bit 0 or this bit 0 are stored in the backup area 37a. When recording is completed, it is reset (= "0") (step 4
3, 44).

When the recording is completed, the recording ID is registered in a temporary registration area (not shown) on the database DB of the RAM 37. At this time, bit 3 is used as the procedure flag and is set (step 4).
5). When the registration in the RAM 37 is completed, the procedure up to that point is completed, so bit 3 is reset and bit 1 is newly set indicating that the save is in standby (steps 46 and 47).

Next, the save key or the eject key is monitored, and when either is pressed (step 4).
8), the record ID is saved in the auxiliary data area 3 of the disc 1. At the same time as this save processing, bit 1 is reset and bit 2 indicating the save mode is set again (steps 49 and 50). When the save process ends, bit 2 is also reset (steps 51 and 5).
2).

In this way, if the procedure flags are sequentially reset (flags off) at the stage when the editing procedure is normally completed, all procedure flags (bits 0 to 3) will be reset when the recording of the REC ID is completed.

As a result, when the procedure flag is not reset, it is understood that the power is turned off at the stage of the corresponding editing procedure. For example, when the power is turned off during the temporary registration in the database of step 46 in FIG. 3, since the processing after step 47 is not performed, bit 3 remains “1” and is not reset (= “0”). is there.

FIG. 4 shows an example of processing for saving the backed up rec ID to the disk. This processing flow is for reloading (reattaching) the disc after power is turned off.
Either it is started up after that, or it is started up by restarting the power supply with the disk loaded, or it is started up after the power failure is restored in the disk loaded state.

In either case, the identity of the loaded disc is checked as shown in FIG. 4 (step 6).
1). When it is confirmed that the read disk ID is the same as the disk ID stored in the RAM 37 immediately before the power is turned off, loading of the disk-side REC ID into the RAM 37 is prohibited, and at the same time, the REC ID in the RAM 37 is changed. It is held (steps 62 and 63).

Next, the state of the procedure flag is determined. As described above, when the power is turned off during the procedure, the state of the bit indicating the procedure flag has not been reset, so the bit contents before and after the disk save is discriminated (step 64). This is because the processing procedure is different before and after saving the disc.

First, either bit 0 or bit 3 is "1".
If it is, the backed up Rec ID is R
It is officially registered in the rec ID database of the AM 37 (step 65). Then, in step 66 shown in FIG. 5, the save key or the eject key is in a standby state,
When the key is pressed, the REC ID registered in the database is saved in the auxiliary data area 3 of the disc 1 (step 67). Then the disc is ejected.

On the other hand, when bit 2 or bit 1 is still set in step 64, it is known that it is already properly registered in the REC ID database.
Is omitted and the process proceeds to step 66 and subsequent steps to execute the save processing to the disk.

When it is confirmed in step 64 that all the bits (0 to 3) have been reset and when it is determined in step 61 that a different disk has been loaded, the REC ID on the backup area 37a.
You don't have to save. In this case, new auxiliary data is read from the loaded disk and the RAM 37
(Step 68). After that, the processing transits to the processing of FIG.

As described above, when the bit 0 and the bit 3 are "1", the RECID database is reconstructed, whereas when the bit 1 and the bit 2 are "1", the reconstruct is not performed. .

In the above-mentioned example, a disk, especially a magneto-optical disk, is illustrated as a recording medium, but this is merely an example, and no matter which recording medium is used, the editing material and the recording management information are stored in the same recording medium. It can be easily understood that the present invention can be applied to anything that is stored. Editing materials are not limited to sounds.

[0049]

As described above, in the editing apparatus according to the present invention, when the power is cut off during editing, the recording management information related to the editing material can be backed up and the backed up recording management information can be saved. It is configured in.

According to this, even when the power source of the apparatus is turned off due to a power failure or the like, the record management information to be saved can be certainly backed up. Therefore, the recorded data during editing, which is particularly important as a recording device, can be surely protected, so that the reliability of the device can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a system diagram of essential parts showing an embodiment of an editing apparatus according to the present invention.

FIG. 2 is a diagram showing a relationship between a REC ID save mode and a corresponding procedure flag.

FIG. 3 is a flowchart showing an example of a REC ID backup mode.

FIG. 4 is a flowchart (1/2) showing an example of REC ID save processing.

FIG. 5 is a flowchart (2/2) showing an example of save processing of a REC ID.

FIG. 6 is a diagram showing a relationship between disc areas.

FIG. 7 is a diagram for explaining a part of the structure of AUX area data.

[Explanation of symbols]

 1 Disc 5 Recording Unit 10 Editing Device 33 Main Controller 37 RAM 37a Backup Area

Claims (7)

[Claims] 1. An editing apparatus adapted to record editing material such as audio data in a recording medium together with the editing data, wherein the recording medium has a main area for storing the editing material data and the editing material. An auxiliary data area for storing data is provided, and the recording / playback state of the editing material is managed based on the recording management information for the recorded editing material data, and the recording management information is stored in the auxiliary data area. An editing apparatus, wherein the recording management information and a flag indicating a power-off state are backed up in the apparatus body when the apparatus power is turned off before. 2. When the main body of the apparatus is put into operation by turning on the power, a flag indicating the power-off state is discriminated, and the backed up information is recorded in the recording medium according to the content of the discrimination. The editing apparatus according to claim 1, wherein the editing apparatus is made. 3. The recording management backed up in the backup area when it is determined that the power is cut off immediately before the flag indicating the power-off state is determined and the recording management information is saved in a recording medium. 2. The editing apparatus according to claim 1, wherein the recording management information is saved in the recording medium after the information is once again registered in the regular recording management area. 4. The recording management information registered in the recording management area when it is determined that the power is cut while the recording management information is being saved in a recording medium by determining a flag indicating the power-off state. 2. The editing apparatus according to claim 1, wherein is saved in the recording medium. 5. The editing apparatus according to claim 1, wherein the recording management information is recorded on the recording medium by a save key or an eject key. 6. The editing apparatus according to claim 1, wherein the recording medium is a disc. 7. The editing apparatus according to claim 6, wherein the disc is a magneto-optical disc.