JPH10208449A - Editing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily designate an operation while visually confirming a severe position and to improve operability of designating an editing point or hence operability of editing operation by displaying transition of time series volume level of reproduced data on a display means, and designating an arbitrary point on a time base of the display content to designate the editing point. SOLUTION: In this editing apparatus, in the case of dividing and editing, a user sets a dividing mode, and searches a roughly editing point while listening reproduced voice, and designates an editing point to be a dividing point. At this time, an operation of the level display mode is executed in a display unit 20 to execute a display of (a) to (c) in response to the reproduced voice. An operation for moving a cursor KS to a desired position is conducted on the unit 20 to divide and edit it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium such as a magneto-optical disk on which audio data is recorded and management information for managing the recording / reproducing operation of the audio data in track units is recorded. And an editing apparatus for editing recorded data by updating the management information.

[0002]

2. Description of the Related Art Various recording media and recording / reproducing apparatuses corresponding to the recording media have been developed. In particular, recently, as known as a mini-disc system, a type in which a user can freely record music data and the like has become popular. ing.

[0003] For example, in the case of this mini-disc system, an area on the disc where a user has recorded (data recorded area) or an area in which nothing has been recorded yet (data-recordable unrecorded area; hereinafter, free area) In order to manage the area, management information called user TOC (hereinafter, referred to as U-TOC) is recorded separately from main data such as music. And the recording device is this U-TOC
And the playback device determines the area to be played back by referring to the U-TOC.

[0004] That is, the U-TOC manages each recorded music or the like in data units called tracks, and records its start address, end address, and the like. In addition, the start address, the end address, and the like of a free area in which nothing is recorded are described as areas that can be used for future data recording.

Further, by managing the area on the disk by such a U-TOC, it is possible to edit recorded data such as music only by updating the U-TOC. For example, a divide function for dividing one track into a plurality of tracks, a combine function for linking a plurality of tracks to one track, a move function for changing a given track number according to the order of tracks to be played, and an unnecessary track. Editing processing such as a delete function for deleting (also called an erase function) can be performed easily and quickly. By utilizing such a function, the user can edit one or a plurality of tracks once recorded on the disc, and can create and enjoy a personal original disc.

[0006]

When an editing process is performed, the user must input a reference point (hereinafter referred to as an edit point) for the editing process. For example, when performing a divide, it is necessary to designate a portion to be divided in a track as an edit point. However, it is actually difficult to specify an optimum edit point for temporally continuous data such as music and voice.

As an actual operation, for example, the user listens to the playback sound while paying attention, and when he / she thinks that he / she has come to the point to be divided, he / she presses a key for specifying the point at that moment (or a playback pause operation key) And then press the key to specify points). However, there is naturally a time lag between the timing at which the user recognizes the edit point while actually listening to the voice and the timing at which the key operation is performed, and the edit point is often not specified where the user thinks.
This makes it extremely difficult to edit music and other data by specifying edit points at very strict timing, which requires a great deal of concentration from the user, Sometimes I couldn't specify the exact timing as an edit point and started over again, or ended up not working and gave up editing.

[0008]

SUMMARY OF THE INVENTION In view of the above problems, the present invention takes into account such a problem even when a user demands a precise timing to specify an edit point during an editing operation. The object of the present invention is to facilitate the designation operation and thereby improve the editing operability.

Therefore, as an editing device, a display means, a volume detection means for detecting a volume level of the reproduction data from the recording medium, and a time-series transition of the reproduction data volume level detected by the volume detection means. There are provided display control means which can be displayed on the display means, and designation operation means which can designate an arbitrary point on the time axis in the display of the transition of the volume level on the display means. Further, a management information update unit is provided, and the management information update unit sets a data position corresponding to the point designated by the designation operation unit as an edit point, and executes an operation of updating the management information based on the edit point. Perform the required data editing.

In other words, the user designates an editing point (edit point) while viewing the transition of the volume level of the reproduced audio data during a certain period on the display. For example, the volume level transition during a certain period is fixedly displayed, and the user can specify a certain point by an operation such as moving a cursor. Usually, an editing point which is a reference for editing processing such as track division and erasing of audio data is almost always a part of an audio break such as a song. Therefore, in the display of the transition of the volume level, the optimum editing point can be visually grasped. In addition, by indicating the transition of the volume level for each short time width, it is possible to easily specify an edit point at a strict timing.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the editing apparatus according to the present invention will be described below. In this embodiment, a magneto-optical disk (mini disk) is used as a recording medium.
A recording / reproducing apparatus having a function as an editing apparatus. The description will be made in the following order. <1. Configuration of recording / reproducing device><2. Cluster format><3. U-TOC sector><4. Example of management by U-TOC><5. Example of Divide Editing Process><6. Section delete edit processing example>

<1. Configuration of Recording / Reproducing Apparatus> First, the configuration of a mini-disc recording / reproducing apparatus will be described with reference to FIGS. FIG. 1 shows an example of the appearance of a recording / reproducing apparatus.
A display unit 20 such as a liquid crystal display device is formed on a front panel of the recording / reproducing apparatus. The display section 20 shows the operation state of the recording / reproducing disc, the track number, the recording time / reproduction time, the editing operation state, the reproduction mode, and the like. Furthermore, in the mini-disc system, character information can be recorded on the disk, and display of input characters when the character information is input, display of character information read from the disk, and the like are executed.

The power key 33 is used to turn on / off the power of the recording / reproducing apparatus.
Provided for off operation. A disc is inserted into the recording / reproducing device on the front panel, and an eject key 3
A disc insertion section 22 is provided in which the disc is removed in accordance with the operation of Step 4.

The front panel is provided with various operation means for operations relating to recording / reproduction. That is,
A reproduction key 24, a pause key 23, a stop key 25, a recording key 26, an AMS operation dial 27 (hereinafter referred to as a jog dial) for executing a heading access operation, a search key 28 for executing a high-speed reproduction operation, and the like are provided.
These are basic operation keys related to a so-called audio recording / reproducing operation.

Along with these operating means, the numerical keys 39
Is provided. The number keys 39 are provided with, for example, a "1" key to a "25" key and a ">25" key for inputting a number of 26 or more. The numeric key 39 can be used for directly selecting a track number to be reproduced or for selecting a track number in a program reproduction mode or a multi-access reproduction mode.

An edit key 29, a yes key 30, and a cancel key 31 are provided as keys for operating the edit mode. The edit key 29 is used for calling and ending various edit modes.
A yes key 30 and a cancel key 31 are used for operations during editing. For example, the yes key 30 is used as an enter operation, and the cancel key 31 is used as a cancel operation.

The edit modes include a track name input mode for inputting characters such as a song name for each track, a disc name input mode for inputting characters such as a name for a disc, and erasing registered character information. There are a name erase mode, a divide mode in which one track is divided into a plurality of tracks, a combine mode in which a plurality of tracks are connected to one track, an erase mode in which tracks are erased, and a section delete mode in which a designated section is erased.

As the keys for operating the reproduction mode, a continuous reproduction key 35, a program key 36, a shuffle key 3
7. A multi-access key 38 is provided. By operating these keys, the playback mode changes to continuous playback mode,
One of the program playback mode, the shuffle playback mode, and the multi-access playback mode is set.

The rotation of the jog dial 27 functions as an AMS operation as described above, but is also used for various operations in an edit (edit) mode. For example, in the edit mode, divide and section delete are used for inputting edit points. In these edit modes, it is necessary to input a start point and an end point of a division point or an erasure section as edit points. In this example, an edit point selection operation for this is performed by using a cursor on the display unit 20 as described later. It can be run on the move. That is, by rotating the jog dial, the edit point is moved back and forth according to the direction of the rotation operation.

The jog dial 27 can also be pressed, and is used for operations in an edit mode and various playback modes. For example, the pressing operation functions as an enter operation in a disc name input mode, a track name input mode, a program setting mode for program reproduction, a multi-access setting mode for multi-access reproduction, and the like. Jog dial 2
Reference numeral 6 may be such that the pressing operation also serves as a reproducing operation similarly to the operation of the reproducing key 24.

In this embodiment, these operating means are arranged on the front panel of the recording / reproducing apparatus for the sake of explanation. For example, the recording / reproducing apparatus can be operated by a remote commander using infrared rays or the like. May be provided. The types of operation keys on the front panel and the operation functions given to each operation key are not limited to the above examples.

The internal structure of the mini disc recording / reproducing apparatus as shown in FIG. 1 will be described with reference to FIG. The disk 1 on which audio data is recorded is driven to rotate by a spindle motor 2. The optical head 3 irradiates the disk 1 with laser light during recording / reproduction.

The optical head 3 performs a high-level laser output for heating a recording track to the Curie temperature during recording, and a relatively low-level laser for detecting data from reflected light by a magnetic Kerr effect during reproduction. Perform output. Therefore, the optical head 3 is equipped with a laser diode as a laser output unit, an optical system including a polarizing beam splitter and an objective lens, and a detector for detecting reflected light. The objective lens 3a is 2
It is held by a shaft mechanism 4 so as to be displaceable in the radial direction of the disk and in the direction of coming into contact with and separating from the disk.

A magnetic head 6a is arranged at a position facing the optical head 3 with the disk 1 interposed therebetween. The magnetic head 6a performs an operation of applying a magnetic field modulated by the supplied data to the disk 1. The entire optical head 3 and the magnetic head 6a can be moved in the disk radial direction by the thread mechanism 5.

The information detected from the disk 1 by the optical head 3 by the reproducing operation is supplied to the RF amplifier 7. The RF amplifier 7 performs an arithmetic operation on the supplied information,
A reproduction RF signal, a tracking error signal TE, a focus error signal FE, groove information (absolute position information recorded as a pre-groove (wobbling groove) on the magneto-optical disk 1) GFM, and the like are extracted. The extracted reproduced RF signal is supplied to the encoder / decoder section 8. Further, the tracking error signal TE and the focus error signal FE are supplied to the servo circuit 9, and the groove information GFM is supplied to the address decoder 10.

The servo circuit 9 is provided with the supplied tracking error signal TE and focus error signal FE, and the system controller 1 composed of a microcomputer.
Various servo drive signals are generated based on a track jump command, an access command, rotation speed detection information of the spindle motor 2 and the like from the controller 1 to control the two-axis mechanism 4 and the sled mechanism 5 to perform focus and tracking control. 2 is controlled to a constant linear velocity (CLV).

The address decoder 10 decodes the supplied groove information GFM to extract address information.
This address information is supplied to the system controller 11 and used for various control operations. The reproduced RF signal is subjected to decoding processing such as EFM demodulation and CIRC in the encoder / decoder section 8. At this time, addresses, subcode data, and the like are also extracted and supplied to the system controller 11.

EFM demodulation in the encoder / decoder section 8
The decoded audio data (sector data) such as CIRC is temporarily written into the buffer memory 13 by the memory controller 12. The reading of data from the disk 1 by the optical head 3 and the transfer of reproduced data in the system from the optical head 3 to the buffer memory 13 are at 1.41 Mbit / sec, and are usually performed intermittently. The encoder / decoder section 8 has a function as a level meter section 8a, and detects the volume level LM of the audio data read from the disk 1 and the audio data to be recorded on the disk 1, and the system controller 11
Can be supplied to However, the level meter section may be provided in the encoder / decoder section 14, and the volume level may be detected using the reproduced audio data at the stage where the audio compression is released (or the recorded audio data before the audio compression processing). .

Output from the encoder / decoder unit 8,
The data written in the buffer memory 13 is read at a timing when the transfer of the reproduction data becomes 0.3 Mbit / sec, and is supplied to the encoder / decoder unit 14. Then, subjected to reproduction signal processing of the decoding processing and the like for the audio compression processing, 44.1KH _Z sampled and a digital audio signal of 16-bit quantization. This digital audio signal is output to, for example, a digital signal processing circuit 21.
After adjusting processing such as equalizing, reverb, and gain, the analog signal is converted into an analog signal by the D / A converter 15, supplied from the output terminal 16 to a predetermined amplifier circuit section, and reproduced and output. For example, they are output as L, R analog audio signals.

The digital signal processing circuit is a so-called DSP
(Digital signal processor), etc., and can perform various various processes. For example, in addition to equalizing processing in sound settings in various modes, processing such as fade-in and fade-out can be performed by gradually changing the gain (output volume level). In addition,
Such a processing unit may be provided at a stage subsequent to the D / A converter 15, and may be performed by analog processing.

When a recording operation is performed on the magneto-optical disk 1, the recording signal (analog audio signal) supplied to the input terminal 17 is converted into digital data by the A / D converter 18. Encoder / decoder unit 1
4 and subjected to audio compression encoding processing. Although not shown, it is of course possible to provide a digital interface unit to input and output digital audio data.

The recording data compressed by the encoder / decoder section 14 is once written in the buffer memory 13 by the memory controller 12, read out at a predetermined timing, and sent to the encoder / decoder section 8. After being subjected to encoding processing such as CIRC encoding and EFM modulation in the encoder / decoder section 8, it is supplied to the magnetic head drive circuit 6.

The magnetic head driving circuit 6 supplies a driving signal to the magnetic head 6a in accordance with the encoded recording data. That is, the application of the N or S magnetic field to the magneto-optical disk 1 by the magnetic head 6a is performed. Also,
At this time, the system controller 11 supplies a control signal to the optical head so as to output a recording level laser beam.

The operation unit 19 indicates a part to be operated by a user, and corresponds to various operation keys and dials described with reference to FIG. Operation information from these operation keys and dials is supplied to the system controller 11, and the system controller 11 executes operation control according to the operation information. The display unit 20 is provided on a housing as shown in FIG. 1, and this display operation is controlled by the system controller 11.

The system controller 11 is a microcomputer having a CPU, a program ROM, a work RAM, an interface, and the like, and controls the entire recording and reproducing apparatus.

When performing a recording / reproducing operation on the disk 1, management information recorded on the disk 1, that is, P-TOC (pre-mastered TOC), U-
It is necessary to read out the TOC (user TOC). The system controller 11 determines the address of the area to be recorded on the disk 1 and the address of the area to be reproduced according to the management information. This management information is held in the buffer memory 13. Then, when the disk 1 is loaded, the system controller 11 reads out the information by executing a reproduction operation on the innermost peripheral side of the disk on which the management information is recorded, and stores the information in the buffer memory 13. Thereafter, it can be referred to at the time of recording / reproducing / editing operation for the disc 1.

The U-TOC is rewritten in accordance with data recording and various editing processes, but the system controller 11 performs the U-TOC every time a recording / editing operation is performed.
C update processing is performed by the U-TO stored in the buffer memory 13.
This is performed on the C information, and the U-TOC area of the disc 1 is also rewritten at a predetermined timing in accordance with the rewriting operation.

<2. Cluster Format> Here, a unit called a cluster will be described. FIG. 3 shows a format of a cluster which is a unit of a recording operation in the mini disc system. As a recording track in the mini disc system, clusters CL are formed continuously as shown in FIG. 3, and one cluster is the minimum unit for recording. One cluster corresponds to two or three tracks.

Then, one cluster CL is composed of sectors S _FC .
And 4 sector linking area that are S _FF, is formed from a main data area of 32 sectors indicated as sectors S ₀₀ to S _1F. One sector is a data unit formed of 2352 bytes. 4 sectors sectors S _FC to S _FF is used in such as a recording or linking area of the sub-data, TOC data, recording such audio data is performed in the main data area of 32 sectors. The address is recorded for each sector.

The sectors are further subdivided into units called sound groups, and two sectors are divided into 11 sound groups. That is, as shown, and the even sector such as sector S _00, the two sectors of consecutive odd sectors such as sector S _01, in a state that contains the sound group SG ₀₀ to SG _0A. One sound group is formed of 424 bytes,
The amount of audio data is equivalent to 11.61 msec. In one sound group SG, data is recorded while being divided into an L channel and an R channel. For example sound group SG ₀₀ is composed of L channel data L0 and R channel data R0, also sound group SG ₀₁
Is composed of L channel data L1 and R channel data R1. Note that 212 bytes, which is a data area of the L channel or the R channel, is called a sound frame.

<3. U-TOC Sector> As described above, when performing a recording / reproducing operation on the disk 1, the system controller 11 uses the P-TOC, U-TOC (user TOC) as management information recorded on the disk 1. ) And refer to this.
Here, as the management information for managing the recording / reproducing operation of the track (music and the like) on the disk 1, UT
The OC sector will be described.

The TOC information includes U-TOC and P-
Although the TOC is provided, the P-TOC is formed in the innermost pit area of the disk 1 and is read-only information. The P-TOC manages the position of a recordable area (recordable user area), a lead-out area, a U-TOC area, and the like on the disc. In the mini-disc system, a read-only optical disk in which all data is recorded in a pit form can be used, but in the case of a read-only disk,
The P-TOC can also manage music recorded in the form of a ROM and the U-TOC is not formed. A detailed description of the P-TOC is omitted, and here, the U-
-TOC will be described.

FIG. 4 shows the format of U-TOC sector 0. It should be noted that the U-TOC sector can be provided from sector 0 to sector 31, and in sector 0, basic management information for a recording / reproducing operation is recorded. Sectors 1 and 4 are character information associated with the disk and each track, and sector 2 is an area for recording the recording date and time associated with the disk and each track. Here, the U-TOC sector 0 which is always required for the recording / reproducing operation of the disk 1 will be described in detail, and the other sectors will not be described because they are not directly related to the present invention.

The U-TOC sector 0 is a data area in which management information on music recorded by the user and a free area in which new music can be recorded is mainly recorded. For example, when recording a certain music (track) on the disk 1, the system controller 11
Finds a free area on the disk from U-TOC sector 0, and records audio data there. At the time of reproduction, the area in which the music to be reproduced is recorded is determined from U-TOC sector 0, and the reproduction operation is performed by accessing the area.

The data area (4 bytes × 588, 2352 bytes) of the U-TOC sector 0 has all 0s at the head position.
Alternatively, a synchronization pattern in which all 1-byte data are formed side by side is recorded. Then the cluster address (Clust
er H) (Cluster L) and an address to be a sector address (Sector) and mode information (MODE) are added by 4 bytes,
This is the header.

A sector is a data unit of 2352 bytes as described above, and 36 sectors constitute one cluster. Regarding the synchronization pattern and address, this U-TO
Not only the C sector 0, but also a P-TOC sector and a data sector in which audio data is actually recorded are recorded in sector units. The cluster address consists of the upper address (Cluster H) and the lower address (Cluster L).
The sector address (Sector) is described by one byte. Next, the manufacturer code, model code, and track number (F
irst TNO), track number of last track (Last T
NO), data such as sector usage (Used sectors), disk serial number, and disk ID are recorded.

Further, in order to identify the area (free area, etc.) of a track (music, etc.) recorded by the user by making it correspond to a management table section described later, various tables are used as a correspondence table instruction data section. Pointers (P-DFA, P-EMPTY, P-FRA, P-TNO1 to P-TN
O255) is recorded.

The table pointers (P-DFA to P-TNO25)
5) (01h)
There are provided 255 parts tables from (FFh) to (FFh). In each of the parts tables, a start address serving as a starting point, an end address serving as an end, and mode information (track mode) of the part are recorded. ing. In addition, since the parts indicated in each part table may be successively connected to other parts, link information indicating the part table in which the start address and the end address of the connected parts are recorded can be recorded. Have been. The start address and the end address are each 3 bytes, and address data is recorded in a compressed format as these 3 bytes.
Compressed data is a 2-byte cluster address,
This is data obtained by compressing a total of 4 bytes of a 1-byte sector address and a 1-byte sound group value into 3 bytes.

It is to be noted that, in this specification, the numerical value with "h" is in a so-called hexadecimal notation. Further, a part refers to a track portion in which temporally continuous data is physically continuously recorded in one track.

In this type of recording / reproducing apparatus, even if data of one music piece is physically discontinuous, that is, even if it is recorded over a plurality of parts, it is reproduced while accessing between parts, so that the reproducing operation is hindered. Therefore, the music or the like recorded by the user may be recorded in a plurality of parts for the purpose of efficient use of the recordable area.

For this reason, link information is provided, and the part tables can be connected by designating the part tables to be connected, for example, by the numbers (01h) to (FFh) given to the respective part tables.
In other words, in the management table section in the U-TOC sector 0, one parts table represents one part. For example, for a music composed of three parts connected, three parts connected by link information The position of the part is managed by the table. Note that the link information is actually indicated by a numerical value which is a byte position in the U-TOC sector 0 by a predetermined arithmetic processing. That is, the part table is designated as 304+ (link information) × 8 (byte).

Each part table from (01h) to (FFh) in the management table section of the U-TOC sector 0 is a table pointer (P-DF) in the corresponding table instruction data section.
A, P-EMPTY, P-FRA, P-TNO1 ~ P-TNO255)
The contents of the part are shown as follows.

The table pointer P-DFA is attached to a defective area on the magneto-optical disk 1, and is a single part table or a plurality of parts tables indicating a track portion (= part) serving as a defective area due to a scratch or the like. The first part table in the box is specified. In other words, if there is a defective part, (01h) to
Either (FFh) is recorded, and the corresponding parts table indicates the defective part by the start and end addresses. If another defective part exists, another part table is designated as link information in the part table, and the defective part is also shown in the part table. If there is no other defective part, the link information is, for example, “0”.
0h ”, and there is no link thereafter.

The table pointer P-EMPTY indicates the head part table of one or a plurality of unused part tables in the management table section. If there is an unused part table, the table pointer P-EMPTY is set as the table pointer P-EMPTY. , (01h) to (FFh) are recorded.
If there are multiple unused part tables, the part table specified by the table pointer P-EMPTY is sequentially specified by link information, and all unused part tables are connected on the management table section Is done.

The table pointer P-FRA indicates a writable free area (including an erasing area) on the magneto-optical disk 1 where data can be written. The first part table in multiple parts tables is specified. That is,
Table pointer P-FRA if free area exists
, Any one of (01h) to (FFh) is recorded.
In the corresponding parts table, parts as free areas are indicated by start and end addresses. Also, if there are a plurality of such parts, that is, if there are a plurality of parts tables,
The parts table up to the parts table whose link information is "00h" is sequentially specified.

FIG. 5 schematically shows the management state of parts that are free areas by using a parts table. This is because when the part (03h) (18h) (1Fh) (2Bh) (E3h) is set as a free area, this state follows the table pointer P-FRA and the parts table (03h) (18h) (1Fh) (2Bh) ) (E3h) indicates the state represented by the link. The above-described management of the defective area and the unused parts table is the same.

By the way, if the magneto-optical disk has no recorded audio data such as music and has no defect,
Parts table (01h) by table pointer P-FRA
This indicates that the entire recordable user area of the disc is a free area. In this case, since the remaining part tables (02h) to (FFh) are not used, the part table (02h) is designated by the above-mentioned table pointer P-EMPTY, and the part table (02h) is not used. The parts table (03h) is specified as link information, and so on, so that the parts table (FFh) is linked. In this case, the link information of the parts table (FFh) is set to "00h" indicating no connection thereafter. At this time, the parts table (0
As for 1h), the start address of the recordable user area is recorded as the start address, and the address immediately before the lead-out start address is recorded as the end address.

Table pointers P-TNO1 to P-TNO255 indicate tracks such as music pieces recorded on the magneto-optical disk 1 by the user.
In P-TNO1, a parts table indicating a temporally leading part of one or a plurality of parts on which data of the first track is recorded is designated. (Hereinafter, the n-th track is indicated by adding “#” to it as track #n.) For example, track # 1 is recorded on a disk without dividing the track, that is, recorded as one part. In this case, the recording area of the track is set to the table pointer P-
It is recorded as a start and end address in the parts table indicated by TNO1.

For example, when track # 2 is discretely recorded on a plurality of parts on a disk, each part is designated in order of time to indicate the recording position of track # 2. That is, the table pointer P-TN
From the part table designated as O2, another part table is successively designated by the link information in order of time, and linked to a part table in which the link information becomes "00h" (similar to FIG. 5 described above). Form). In this way, for example, since all the parts on which the data constituting the second tune are recorded are sequentially designated and recorded, the data of the U-TOC sector 0 can be used to reproduce the second tune or the second tune. When performing overwrite recording on the area, it is possible to access the optical head 3 and the magnetic head 6 to extract continuous music information from discrete parts, and to perform recording using the recording area efficiently.

For the rewritable magneto-optical disk 1,
Although the basic area management on the disc is performed by the P-TOC, the management of the music and the free area recorded in the recordable user area as described above is performed by the U-TOC.
Performed by TOC.

<4. Example of management by U-TOC>
The area structure of the magneto-optical disk 1 will be described, and P-TOC,
An example of a recording state managed by the U-TOC will be described. FIG.
(A) schematically shows the area structure of the disk 1 in the radial direction. In the case of a magneto-optical disk, an area in which data is recorded by embossed pits as roughly shown as a pit area in FIG. 6A and a groove in which a so-called magneto-optical area is provided. Divided into areas.

Here, P-TOC is repeatedly recorded as a pit area. In this P-TOC,
-The TOC position is the U-TOC start address UST _A
And the readout start address L
O _A , recordable user area start address R
Addresses at the respective positions shown in FIG. _6A, such as ST _A and the power calibration area start address PC _A , are shown.

[0063] While the groove area following the pit area at the innermost peripheral side of the magneto-optical disc 1 is formed, to the address indicated as the read-out start address LO _A in P-TOC out of the groove area The area is a recordable area that can be recorded, and is hereinafter referred to as a lead-out area. Furthermore Of the recordable area, actually recordable user area in which data such as music is recorded, from the recordable user area start address RST _A, the up position immediately before the lead-out start address LO _A.

[0064] Then, the area to be pre-recordable user area start address RST _A within the groove area is a management area for recording and reproducing operations, U-TOC as described above is recorded, also power calibration area start One cluster from the position indicated by the address PC _A is provided as a laser power calibration area. The U-TOC is located in the management area for the recording / reproducing operation.
Start address UST position from the 3 clusters shown in _A (1 cluster = 36 sectors) are continuously recorded.

The actual audio data is recorded in the recordable user area, for example, as shown in FIG. This example shows a case where four tracks (songs) # 1 to # 4 are recorded. First, address A0
Track # 1 as the first music piece is recorded as a part of A1, and track # 2 as the second music piece has an address A2
.., And the second half part # 2-2 recorded at addresses A6 to A7. Track # 3 is recorded on the parts at addresses A4 to A5, and track # 4 is recorded on the parts at addresses A8 to A9. In this state,
The free area F1 in which no music is recorded is a part with addresses A10 to A11.

The U-TO managing the state shown in FIG.
FIG. 7 shows an example of data in C sector 0. Note that FIG.
, The portion where 1-byte data as a table pointer or link information in the U-TOC is set to “00h”, and 3 as a start address and an end address.
The portion where the byte data is "000000h" is indicated by "-". The corresponding parts / tracks are shown on the right side of each parts table. Further, it is assumed that there is no defect in the recordable user area on the magneto-optical disk 1, so that the table pointer P-DFA is set to "00h".

In the recording state of FIG. 6A, the table pointer P-FRA manages the free area. For example, if the table pointer P-FRA indicates a parts table (06h), the table pointer P-FRA corresponds to this. Then, the parts table (06h) shows information on the parts that become the free area F1 in FIG. 6A. That is, the address A10 is shown as a start address, and the address A11 is shown as an end address. In this case, since there are no other free area parts, the parts table (06)
The link information of h) is "00h".

The start address A0 and the end address A1 of the track # 1 are indicated in the parts table (01h) indicated by the table pointer P-TNO1. Since track # 1 is recorded as one part, the link information of the parts table (01h) is set to "00h".

The start address A2 and the end address A3 of the track # 2 are indicated in the parts table (02h) indicated by the table pointer P-TNO2. However, track # 2 has two parts (# 2
-1 and # 2-2).
2 and address A3 only indicate part # 2-1 in the first half of track # 2. Then the parts table (0
2h) as link information, for example, a parts table (04
h), and the start address A6 and the end address A7 are recorded in the parts table (04h) to indicate the part of the second half part # 2-2. Since the link is unnecessary thereafter, the link information of the parts table (04h) is set to "00h".

The parts positions of the tracks # 3 and # 4 are managed by part tables obtained from the table pointers P-TNO3 and P-TNO4, respectively. Since only four tracks have been recorded, the table pointers P-TNO5 to P-TNO255 are not used and are set to "00h". In addition, the table pointer P-EMPTY indicating the unused parts table is
In this case, the part table (07h) is shown, and all unused part tables from the part table (07h) to the part table (FFh) are linked by link information.

<5. Example of Divide Editing Process> As described above, various editing operations can be performed by updating the U-TOC data. In this example, however, the operation of setting an edit point required particularly in the case of divide editing or section delete editing is simplified. Is what you do. First, an operation of setting an edit point in the present example will be described using an example of divide processing.

First, the divide editing operation will be described with reference to FIG.
(B) and (c) and FIG. In the recording state shown in FIG. 6A, it is assumed that the user wants to divide the track into two in the middle of the track # 3. in this case,
After performing an operation of setting the edit mode to the divide mode, the user performs an operation of designating a point to be divided, that is, an edit point EP, and then performs an operation of instructing execution of editing.

Here, it is assumed that the absolute address on the disk 1 of the edit point EP specified as shown in FIG. 6B is the address A22. Then, the system controller 11 updates the U-TOC so that the track # 3 is divided into two tracks with the address A22 and the immediately preceding address A21 as a boundary. That is, as shown in FIG. 6C, the track # 3 is set to the address A4 to A21, and the address A22 to A5 is set to the track # 4. In response to this, track # 4 up to that point is set to track # 5. That is, the track number is moved down.

FIG. 8 shows an example of updating the U-TOC sector 0 for this purpose. By way of example only, the U-TOC sector 0 is updated as shown in FIG. 8 by the above-described divide processing from the state of FIG. 6A managed by the above-described data example as shown in FIG. FIG.
The state of (c) is realized. Note that the hatched portions in FIG. 8 indicate portions updated from the state of FIG.

In this example, only the addresses A4 to A21 are used as the track # 3.
The end address of 3h) is rewritten to “A21”. In order to manage a new track # 4 part generated by division, for example, a parts table (07h) is used, and "A22" is recorded as a start address and "A5" is recorded as an end address. The link information is set to “00h”. And this parts table (0
7h), the part table (07h) is managed by the table pointer P-TNO4 so that track # 4 is managed.
Will be shown.

Since the original track # 4 moves down to the track # 5, the parts table (05) that manages the original track # 4 is stored in the table pointer P-TNO5.
h) will be shown. Further, as the part table (07h) is newly used, the value of the table pointer P-EMPTY is updated to "08h", and the part tables (08h) to (FFh) are managed as unused part tables. You. By updating the U-TOC sector 0 in this manner, a state where the track # 3 is divided into two tracks # 3 and # 4 as shown in FIG. 6C is realized.

By the way, the user performs an operation of designating the edit point EP for such divide processing. However, a specific point in time-continuous reproduction data such as music is set in a timely manner. It is not easy to specify. For example, if you want to divide the song that follows intro → No. 1 → No. 2 → No. 3 → Ending with the boundary between No. 1 and No. 2 as a boundary, the edit point at the No. 1 and No. 2 seam is quite strict. If the EP is not specified, the sound at the start of the music reproduced after the divide may become unnatural. Of course, it is difficult for the user to specify the edit point EP at exactly the right time while listening to the reproduced sound even in the case where the divide is performed so that the narration other than the music is not reproduced.

Therefore, in this example, when an edit point EP is designated for the divide processing, a simple operation that does not require the user to visually and strictly operate the point using the display unit 20 is performed. To be able to run on. This makes it possible to easily execute the most suitable divide editing desired by the user.

Hereinafter, an example of processing in the divide mode including an edit point designation operation using the display unit 20 will be described.
This will be described with reference to the flowchart of FIG. 9 and the explanatory diagram of the display example of FIG. The flowchart of FIG. 10 shows the processing of the system controller 11 when the mode is set to the divide mode.

When the user operates the edit key 29 to enter the divide mode, the system controller 11 starts the processing shown in FIG. In the case of this example, when the display enters the divide mode, the display on the display unit 20 is switched from the display at the time of normal reproduction or the like to the level display mode for performing a level transition display. First, in step F101, such display mode switching is performed, and the display unit 20 starts level transition display of reproduced audio data.

The level transition display is obtained by sampling data read from the disk 1 in accordance with the disk reproducing operation and detecting the volume level at predetermined timings, for example, as shown as a level display PL in FIG. Is displayed in the form of a level bar at each time. In this example, the volume level is detected every 1/15 seconds, for example, based on the timing of the reproduced output sound. Of course, a finer timing interval may be used, or a rougher timing interval may be used.
For example, the system controller 11 outputs 1 /
When the audio data at the interval of 15 seconds is decoded by the encoder / decoder section 8, the level information LM supplied from the level meter section 8a is fetched, and the level information LM is displayed.
The display control information forms one level bar in L.

In the divide mode, the user must first perform an operation of designating an edit point to be set as a division point. For this purpose, the user must roughly search for an edit point while listening to reproduced sound. First, the user executes a reproduction operation / search operation / pause (pause) operation or the like as necessary, and searches for a point to be divided in a certain track. In response to such a user operation (step F102), the system controller 11 executes an operation such as reproduction / search (access or fast forward or fast reverse) in step F103.

At this time, the operation of the level display mode is executed on the display unit 20, so that the display unit 20 corresponds to FIG.
The display as shown in (a) to (c) is executed. FIG.
(A) shows a state in which the volume level transition of track # 2 around 16 seconds is displayed. For example, the track number display TN is set to [2], indicating that the track # 2 is being reproduced (or searched), and the start position of the track # 2 is set to 0 as the time position display TM.
The time position with minutes 0 seconds is shown. The current playback position is indicated by the cursor KS. As a result, at the point of time in FIG. 10A, the timing of the sound currently reproduced and output is around 0:17 seconds of the track # 2, and as shown in FIG. It is shown that the volume is changing. As the output of the reproduced sound progresses in the reproduction operation or the search operation, the latest volume level is displayed as a bar at the rightmost portion where the cursor KS is located, and conversely, the leftmost level bar is not displayed. In other words, the level display P
L is a display image that scrolls from right to left. FIG. 10B is a display image about one second after FIG. 10A.

The user roughly searches for an edit point while listening to the reproduced sound or watching the level display on the display unit 20. Then, when the user thinks that he or she has almost reached the point to be divided, he performs a pause operation. The system controller 11 executes the processing in step F1 according to the pause operation.
From 04 to 105, the reproduction operation is temporarily stopped. However, if the user thinks that the pause position is not appropriate, or if the user performs a pause operation by mistake, the playback / search operation will roughly search for a division point. Steps F106 to F1
03.

For example, it is assumed that the user finds a silent portion in the middle of track # 2 and performs a pause operation. At this time, scrolling on the level display unit PL is stopped while the display as shown in FIG. 10C is being performed on the display unit 20 (display of the level display unit PL because there is no new reproduction data). Will not be updated). This is because there is a silent part at a position of about 1 minute 12 seconds on track # 2, and the user performs a pause operation in response to the pause without paying particular attention to the exact timing, so that the reproduction output becomes 1 minute 1 minute.
This is a display state corresponding to a state of being paused after about four seconds.

In this state, the user operates the jog dial 27.
Can rotate the cursor KS to specify a desired position on the time axis of the level display PL. That is, the system controller 11 monitors the jog dial operation, the enter operation, and the reproduction / search operation in the loop of steps F107, F108, and F106 during the pause.
In step 109, the cursor KS is moved on the display according to the operation amount and the operation (rotation) direction. When the user wants to designate a silent portion immediately before the pause operation as an edit point, the jog dial 27 is operated to move the position of the cursor KS to a position corresponding to the silent portion as shown in FIG. In other words, it is a position where the height as the level bar is visually recognized as zero and no sound.

After moving the cursor KS to a desired position in this way, the user presses, for example, a yes key 30 as an enter operation. Then, the process of the system controller 11 proceeds from step F108 to F110. At that time, the address corresponding to the position indicated by the cursor KS is input and determined as an edit point, and in step F111, the determined edit point is used as a reference. Perform divide editing. That is, as described in FIGS. 6 and 8, one track is divided into two tracks based on the edit point EP.
The U-TOC data is updated.

This updating process is first performed on the U-TOC data stored in the buffer memory 13, and then the U-TOC data is transferred to the encoder / decoder unit 8 as recording data and encoded, and The recording operation from 6a is performed to update the U-TOC area of the disk 1. Then, step F1
When the update processing of No. 11 is completed, the divide editing is completed, and the divide mode is ended. In this example, the strict edit point can be specified by a very simple operation of moving the cursor KS to an optimum position while looking at the display unit 20. Of course, strict operation timing may be used. Not required. Therefore, it is possible to very easily perform divide editing at an optimum point.

The updating process in step F111 is performed only on the U-TOC data stored in the buffer memory 13, and the updating of the U-TOC on the disk 1 is performed at a predetermined timing (for example, when the power is turned off). (During an operation or a disc eject operation).

Further, in this example, when the cursor is operated, the change in the volume level from the pause position for about 2 seconds in the past is displayed on the display unit 2.
0 is displayed. Therefore, for example, in a case where the silence part to be set as the edit point is three seconds before the timing of the pause, the position corresponding to the silence part is not shown on the display. However,
For example, when the cursor KS is at the leftmost position on the display and the jog dial 27 is further rotated to the left, the system controller 11 performs a reverse scroll display so that the past volume levels are sequentially displayed. Doing so will allow the user to easily find silence. For this purpose, the level transition data for the past several seconds may be always stored in the system controller 11. Of course, depending on the setting of the display area size and the level detection interval, how many seconds past the volume level transition from the pause position can be displayed in a list is different.

Further, even if the audio data has not been reproduced and output at the timing of the pause, the audio data already decoded by the encoder / decoder section 8 and stored in the buffer memory 13 has already been detected by the sound volume level. I have. Therefore, for example, as shown in FIG.
When the jog dial 27 is rotated to the right from the state at the right end, the change in the volume of the reproduction data after the pause position can be scroll-displayed, so that, for example, the pause is stopped before the user reaches a silence portion. Even if it is performed, it is possible to visually search for an optimal edit point by moving the cursor on the display and displaying the transition of the volume level. If the cursor movement is requested to a range not stored by the system controller 11 before and after the pause point, the level is detected by actually reading data from the disk 1 (in this case, it is not necessarily required). (It is not necessary to output reproduced sound from a speaker or the like.) The level transition display may be performed on the display unit 20 in response to a user operation.

By the way, in the processing example of FIG.
Although it is necessary to roughly search for the edit point by searching, in practice, you can move the cursor on the display (and scroll the level bar) by operating the jog dial from the beginning so that you can search for it. It is possible.

In the above example, the operation procedure for designating the edit point after setting the divide mode is described.
A procedure may be performed in which an edit point EP is specified in advance and then an operation of setting the divide mode is performed. For example, regardless of the edit mode, a volume level display mode as shown in FIG. 10 is prepared as one of the display modes, and the user can arbitrarily display this volume level transition. Then, at a certain point in time, a desired point is designated by a cursor moving operation, and then the edit mode is set, so that the designated point is set as an edit point, and the edit is performed according to whether or not editing can be performed (enter operation). Is performed.

<6. Section delete processing> Next, U-TO
Among various editing operations by updating the C data, an editing process called section delete for deleting a desired section within a track or over a plurality of tracks will be described.

First, an editing mode called section delete editing will be described with reference to FIGS. 11 (a), (b) and (c) and FIG. FIG. 11A shows a recording state similar to that of FIG. 6A described above. From the state of FIG. 11A, it is assumed that the user wants to delete a section shaded in FIG. 11B as a part of the track # 3.

In this case, in this example, after the user performs an operation for setting the section delete mode, the start position (edit point EP) of the section to be subjected to the section delete processing is set.
1) is specified, and the end point (edit point EP) of the section to be subjected to section delete processing
Perform operation 2).

Here, it is assumed that the address (section delete start address) on the disk 1 designated as the edit point EP1 is the address A32. It is also assumed that the address designated as edit point EP2 (section delete end address) is address A33. Then, the system controller 11 updates the U-TOC so that the section from the section delete start address A32 to the section delete end address A33 is deleted.

That is, as shown in FIG. 11C, the track # 3 corresponds to the parts # 3-1 from the addresses A4 to A31.
And a track composed of two parts, part # 3-2 from address A34 to A5, and a section from section delete start address A32 to section delete end address A33 is free area F2.
So that

As an example, from the state of FIG. 11A managed by the data example as shown in FIG.
Edit points EP1, E in section delete mode
In accordance with the designation of P2, U-TOC sector 0 is updated as shown in FIG. 12, whereby the state of FIG. 11C is realized. Note that the hatched portions in FIG. 12 indicate portions updated from the state in FIG.

That is, in order to make the addresses A4 to A31 the parts # 3-1 constituting the track # 3, the end address of the parts table (03h) is rewritten to "A31", and the parts # 3-2 are linked. For example, a parts table (08h) is designated as link information. In the parts table (08h), the start address “A34” and the end address “A5” as the part # 3-2 are described, and the link information is “00”.
h ”.

On the other hand, since two free areas F1 and F2 are generated as free areas, the parts table (06h) managing the free area F1 in FIG.
In the link information, for example, the parts table (07h)
Is specified. And in the parts table (07h)
The start address “A32” and the end address “A33” as the newly generated free area F2 are described, and the link information is “00h”. Also, with the new use of the part tables (07h) and (08h), the value of the table pointer P-EMPTY is changed to "09h".
And the part tables (09h) to (FFh) are managed as unused part tables.

As described above, by updating the U-TOC sector 0, a state in which a part of the track # 3 is deleted as shown in FIG. 8C is realized. That is, as the reproduction operation of the track # 3, as shown by the arrow PBM3 at the bottom, two parts, the part # 3-1 and the part # 3-2, are temporally continuously performed.

In such a section delete process as well, the user performs the operation of designating the edit points EP1 and EP2 for which it is desired to designate a specific point in time with respect to temporally continuous reproduction data such as music. In this example, at the time of specifying the edit points EP1 and EP2 for the section delete process, the point is visually specified using the display unit 20.
The most suitable section delete editing desired by the user can be easily executed by executing the simple operation that does not require the strict operation timing to the user. Hereinafter, a processing example in the section delete mode including an edit point designation operation using the display unit 20 will be described.
This will be described with reference to the flowchart of FIG. 13 and the explanatory diagram of the display example of FIG. The flowchart of FIG. 13 shows the processing of the system controller 11 when the mode is set to the section delete mode.

When the section delete mode is set by the user operating the edit key 29, the system controller 11 starts the processing shown in FIG. The contents of the processing in steps F201 to F209 are the same as those in steps F101 to F109 in FIG. 9 in the case of the divide mode.

That is, the user roughly searches for an edit point by a reproduction / search operation or the like. However, in the case of section delete, it is necessary to designate two points EP1 and EP2 as edit points. First, an operation for searching for the first edit point EP1 is performed. Assuming that the edit point is roughly searched for in the reproduction / search, and the position where the pause operation is performed by the pause operation in step F204 is near the beginning of the track # 7, the display state of the display unit 20 is, for example, as shown in FIG. )become that way. That is, the sound volume level transition from the end of track # 6 is displayed for about 2 seconds in the past from the vicinity of the beginning of track # 7.

In this example, a case is described where some sound is recorded between tracks of tracks # 6 and # 7 as shown as noise noise in the figure, and the user wants to cut this part by section delete. I will give it. This FIG.
In the state (a), the user rotates the jog dial 27 to move the cursor KS, and designates one end of the section to be cut on the level display PL. That is, the system controller 11 determines in step F207 during the suspension,
Jog dial operation in the loop of F208 and F206,
If the jog dial operation is performed during the monitoring of the enter operation and the reproduction / search operation, the process proceeds to step F209 to move the cursor KS on the display according to the operation amount and the operation (rotation) direction.

When the user selects the start position of the section to be erased with the cursor KS as shown in FIG.
For example, a yes key 30 is pressed as an enter operation. Then, the processing of the system controller 11 proceeds to step F208.
To F210. At this time, it is determined whether or not the edit point EP1 has already been input. Since the input point has not been input at first, the process proceeds to step F211. Then, the input corresponding to the position indicated by the cursor KS at that time is determined as the edit point EP1.

Next, the second edit point EP2
Are entered in steps F206 and F20.
7. Return to the loop of F208. Then, the user moves the cursor KS or executes reproduction / search as needed, and inputs the second edit point EP2.

For example, in the example of FIG. 14, after the edit point EP1 is fixed, the jog dial 27 is operated to move the cursor KS as shown in FIG. 14 (c). Is Step F20
8 to F210. At this point, since the edit point EP1 has already been determined, step F212
Proceed to. Then, in step F212, FIG.
An address corresponding to the position of the cursor KS at the time (c) is determined as the edit point EP2. At the time of FIG. 14C, the fixed cursor display KSf is displayed for the edit point EP1 that has already been determined.
To improve the clarity of the user's input operation.

At step F212, edit point E
When P2 is determined, in step F213, the section to be deleted is displayed on the display for a predetermined time as shown in, for example, FIG. 14D, and the section delete editing processing is performed based on the determined edit points EP1 and EP2. Done. That is, as described with reference to FIGS. 11 and 12, the U-TOC data is updated so that the section indicated by the two edit points EP1 and EP2 is deleted.

This updating process is first performed on the U-TOC data stored in the buffer memory 13, and then the U-TOC data is transferred to the encoder / decoder unit 8 as recording data and encoded, and The recording operation from 6a is performed to update the U-TOC area of the disk 1. Along with such an updating process, in step F214, the fact that the section delete has been executed is expressed on the display. That is, FIG.
As shown in FIG. 4E, the section specified as the section delete target is deleted, and the display is switched to the display of the packed image.

When the update processing in step F214 is completed, the section delete editing is completed, and the section delete mode ends. The display may be returned to the normal display mode after a predetermined time, or the level display mode may be continued as it is. In this example, it is possible to specify an exact edit point at two places by a very simple operation of moving the cursor KS to an optimal position while looking at the display unit 20. Naturally, the operation timing No rigor is required. Therefore, section delete editing for an optimum section can be performed very easily.

In this case as well, the updating process in step F111 is performed in the U-T
The update may be performed only for the OC data, and the U-TOC update on the disk 1 may be performed at a predetermined timing thereafter (for example, at the time of a power-off operation or a disk eject operation).

In the example of FIG. 14, the edit point E
Since P1 and edit point EP2 are close in time, edit point EP2 can be designated by simply moving the cursor after input of edit point EP1 has been confirmed. However, edit point EP1 and edit point EP2 are temporally located. If you are away from
In other words, if it is desired to delete a wider section, reproduction / search or the like is performed after the input of the edit point EP1 is determined, and the pause is performed near the edit point EP2. In this case, the process returns from step F206 to the loop of steps F202 to F204.

However, it is not always necessary to execute reproduction / search, and it is possible to specify even a distant position by continuing the cursor movement. That is, the display of the volume level transition may be scrolled according to the cursor moving operation. These circumstances are almost the same as in the case of the divide processing. Of course, rough movement by reproduction / search is not performed, and the edit points EP1 and EP1 are moved from the beginning by moving the cursor and scrolling the level bar.
It is also possible to search for EP2.

Note that, as an embodiment, divide processing,
Although the example in which the operation of the present invention is applied to the section delete processing has been described, the processing of the present invention can also be applied to an editing operation in which the user needs to specify an edit point. Also, an example in which the present invention is applied to a mini-disc system has been described. However, the present invention records data that is continuous in time, such as audio data and video data, and manages the recording / reproducing operation of the data. The present invention can be realized as an editing device for various recording medium systems in which management information is recorded.

[0117]

As described above, the editing apparatus of the present invention allows the display means to display the time-series transition of the volume level of the reproduced data, and designates an arbitrary point on the time axis in the display. Allows you to specify an edit point. This makes it very easy to operate as a desired editing point, while visually confirming the exact position, without having to perform extremely difficult operations such as performing key operations at very precise timing while listening to the playback audio carefully. This has the effect of greatly improving the operability of the operation of specifying the editing point, and thus the operability and clarity of the editing operation. This is optimal for editing processing such as erasing a specified section.

[Brief description of the drawings]

FIG. 1 is an external view of a recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram of a recording / reproducing apparatus according to the embodiment.

FIG. 3 is an explanatory diagram of a mini disk cluster format.

FIG. 4 is an explanatory diagram of U-TOC sector 0 of a mini disc.

FIG. 5 is an explanatory diagram of a link form of a U-TOC sector 0 of a mini disc.

FIG. 6 is an explanatory diagram of a divide process according to the embodiment;

FIG. 7 is an explanatory diagram of a management example of U-TOC sector 0 according to the embodiment.

FIG. 8 is an explanatory diagram of a management example of U-TOC sector 0 after divide processing according to the embodiment;

FIG. 9 is a flowchart of a divide process according to the embodiment.

FIG. 10 is an explanatory diagram of a display state during divide processing according to the embodiment;

FIG. 11 is an explanatory diagram of a section delete process according to the embodiment;

FIG. 12 shows a U-TO after a section delete process according to the embodiment.
FIG. 14 is an explanatory diagram of a management example of C sector 0.

FIG. 13 is a flowchart of a section delete process according to the embodiment.

FIG. 14 is an explanatory diagram of a display state during a section delete process according to the embodiment;

[Explanation of symbols]

1 disk, 3 optical heads, 6a magnetic head, 8
Encoder / decoder section, 11 system controller, 11a RAM, 12 memory controller, 13
Buffer memory, 14 encoder / decoder units, 1
9 operation section, 20 display section, 27 jog dial, 2
9 Edit key, 31 Yes key

Claims (3)

[Claims] 1. A recording medium in which audio data is recorded in track units and management information for managing data recording / reproducing operations in track units is recorded.
As an editing device capable of executing at least management information updating processing, display means, volume detection means for detecting a volume level of reproduction data from a recording medium, and time-series reproduction data detected by the volume detection means. Display control means capable of displaying the transition of the volume level on the display means, and designation operation means capable of designating an arbitrary point on the time axis in the display of the transition of the volume level on the display means, A management information updating unit that can realize required data editing by performing a management information updating operation based on the data position corresponding to the point designated by the designation operating unit as an editing point and based on the editing point. An editing device, comprising: 2. The management information updating means sets a data position corresponding to a point designated by the designation operation means as an edit point, and divides a track including the edit point into two tracks with the edit point as a boundary. 2. The editing device according to claim 1, wherein the editing device performs an operation of updating the management information so as to be managed. 3. The management information updating means sets first and second edit points to respective data positions corresponding to the two points designated by the designation operation means, and sets the data positions from the first edit point on the time axis. 2. The editing apparatus according to claim 1, wherein an update operation of the management information is performed such that the data of the section up to the second editing point is deleted.