JP3785610B2 - Audio apparatus and program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an audio device and a program.
[0002]
[Prior art]
Recently, audio devices equipped with a plurality of recording devices such as MD (Mini Disc) and CD-R (Compact Disc-Recordable) have become widespread. In such an audio apparatus, track number (TNO) hitting when recording music data recorded on a CD or the like on each recording apparatus is performed independently on each recording apparatus side.
[0003]
[Problems to be solved by the invention]
However, in the conventional audio device as described above, when recording music data of the same source simultaneously on two recording devices loaded with media having different track number restrictions according to the standard, Even if the TNO of the loaded media first reaches the maximum value and the subsequent TNO strike becomes impossible, the TNO strike is continued for the media loaded in the other recording device. Even when music data or the like is recorded, the TNO recorded on each medium is different, and the recorded contents of both may be misunderstood. Incidentally, the maximum number of tracks of MD is 255, and the maximum number of tracks of CD-R is 99.
[0004]
Further, in the conventional audio device, even when music data or the like of the same source is simultaneously recorded on two recording devices loaded with the same type of media, the recorded TNOs may be different. For example, one of the media is subject to restrictions regarding the number of tracks first, and the maximum recordable TNO differs between the two, so that it is not convenient for the user.
[0005]
An object of the present invention is to record the same number of recording tracks on each recording medium when recording sound data of the same source on a recording medium loaded in each recording apparatus in an audio apparatus equipped with a plurality of recording apparatuses. It is to be.
[0006]
[Means for Solving the Problems]
The present invention is an audio device equipped with a plurality of recording devices having different maximum number of tracks of a loaded disc, and when recording sound data of the same sound source on each disc loaded in the plurality of recording devices, A determination unit that determines whether or not a new track number can be assigned to each of the disks, and a disc that has been determined by the determination unit to be unassignable as a track number. And control means for performing a process of stopping allocation of track numbers to all the disks.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
First, the configuration will be described.
[0008]
FIG. 1 is a diagram showing a main part configuration inside an audio system 100 to which the present invention is applied. As shown in FIG. 1, an audio system 100 includes a recording / reproducing unit 1 for MD, a recording / reproducing unit 2 for CD-R, a system controller 3, a key matrix 4, a display 5, a CD reproducing unit 6, and a DIGITAL AUDIO I / F unit. 7, a subcode decoding unit 8, a category determination unit 9, an audio level determination unit 10, a D / A converter 11, and an A / D converter 12.
[0009]
The recording / reproducing unit 1 includes an MD loading unit for loading an MD, a DSP, a servo circuit, an optical pickup, a magnetic head, an RF amplifier (none of which is shown), and the like, and a control signal input from the system controller 3 Accordingly, the MD is reproduced and the audio signal input from the A / D converter 12 or the DIGITAL AUDIO I / F unit 7 is recorded.
[0010]
A DSP (Digital Signal Processor) performs an ATRAC encoding process on the digital audio data input from the A / D converter 12 or the DIGITAL AUDIO I / F unit 7 and the temporary recording of the audio data at the time of recording on the MD. Various digital signal processing related to MD recording processing is performed at high speed. Also, the DSP performs various digital processes related to the MD reproduction process such as the ATRAC decoding process at a high speed on the reproduced digital audio signal during the MD reproduction.
[0011]
The servo circuit generates a servo drive signal based on various signals supplied from the RF amplifier and the system controller 3, and controls a biaxial mechanism of the optical pickup, a thread, a spindle motor (none of which are shown), and the like. To do.
[0012]
The optical pickup outputs, to the MD, a high level laser beam for heating the temperature of the magnetic film on the MD to the Curie point or higher during recording of the CD reproduced by the CD reproducing unit 6. In addition, the optical pickup irradiates the MD with a low level laser beam while reading the data recorded in the MD from the reflected light while moving in the radial direction of the disk by the thread during MD reproduction.
[0013]
The magnetic head is disposed at a position facing the optical pickup with the MD loaded in the MD loading unit interposed therebetween, and moves in the radial direction of the disk by a thread together with the optical pickup during recording of a CD reproduced by the CD reproducing unit 6. . At this time, the magnetic head applies a magnetic field corresponding to the audio signal encoded in the DSP to the MD.
[0014]
The RF amplifier extracts an RF signal, a tracking error signal, a focus error signal, and the like from the reflected light of the laser light applied to the MD during MD reproduction. The extracted RF signal is output to the DSP, and the tracking error signal, the focus error signal, and the like are output to the servo circuit.
[0015]
In FIG. 1, the recording / reproducing unit 2 includes a CD-R loading unit for loading a CD-R, a DSP, a servo circuit, an optical pickup, an RF amplifier (none of which are shown), and the like from the system controller 3. In accordance with the input control signal, the CD-R loaded in the CD-R loading unit is reproduced, and the audio signal input from the A / D converter 12 and the DIGITALAUDIO I / F unit 7 is recorded.
[0016]
The DSP performs high-speed digital signal processing related to CD-R recording processing on digital audio signals input from the A / D converter 12 and the DIGITAL AUDIO I / F unit 7 during recording on the CD-R. To do. Also, the DSP performs various digital processing related to the CD-R playback processing such as EFM decoding processing on the playback digital audio signal at high speed during playback of the CD-R.
[0017]
The optical pickup outputs laser light to the organic dye applied to the recording surface of the CD-R and records data by scoring the dye during recording of the CD reproduced by the CD reproducing unit 6. Further, during CD-R reproduction, the optical pickup irradiates the CD-R with laser light while moving in the radial direction of the disk by a thread, and reads data recorded on the CD-R from the reflected light.
[0018]
Note that the description of the configuration of the servo circuit, the RF amplifier, etc. in the recording / reproducing unit 2 is the same as that in the recording / reproducing unit 1, and the description thereof is omitted here.
[0019]
In FIG. 1, a system controller 3 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory), and is stored in the ROM in accordance with signals input from each unit. Data that is formed in the RAM by reading out various control programs for the audio system, application programs, etc., developing them in the program storage area in the RAM, executing various processes, and generating various data during these processes Temporarily store in the storage area.
[0020]
For example, when the system controller 3 simultaneously records the audio data recorded on the CD of the CD playback unit 6 on the MD and CD-R loaded in each of the recording / playback units 1 and 2, it is stored in a memory (not shown). Further, it has a function as a judging means for judging whether or not TNO hitting on MD and CD-R is currently possible from the management information of each disc.
[0021]
Further, the system controller 3 causes the recording / reproducing units 1 and 2 to stop the recording operation to the disc loaded in either of the MD and the CD-R when TNO hitting is impossible. It has a function as a control means which performs (refer FIG. 2).
[0022]
When TNO hitting to MD and CD-R is possible, the system controller 3 changes the TNO value of the CD being reproduced by data input from the subcode decoding unit 8 or the audio level determination unit 10. A TNO CHANGE detection process for detecting and instructing the TNO strike to the MD and CD-R is executed (see FIG. 3).
[0023]
The key matrix 4 has various operation keys such as a recording key, a reproduction key, a stop key, and an enter key, and outputs an operation signal generated by the key operation to the system controller 3.
[0024]
The display 5 is composed of an LCD (Liquid Crystal Display), and performs a required display based on the control of the system controller 3. This display 5 has a function as a notification means for displaying that when any one of MD and CD-R cannot be TNO hit.
[0025]
The CD playback unit 6 includes a CD loading unit for loading a CD, a DSP, a servo circuit, an optical pickup, an RF amplifier (none of which are shown), and the like, according to a control signal input from the system controller 3 The CD loaded in the CD section is reproduced.
[0026]
The DSP in the CD playback unit 6 performs high-speed digital processing related to CD playback processing, such as EFM decoding processing, on audio data during CD playback.
[0027]
The optical pickup irradiates the CD with laser light while moving in the radial direction of the disk by a thread, and reads data recorded on the CD from the reflected light.
[0028]
Note that the description of the configuration of the servo circuit, the RF amplifier, etc. in the CD playback unit 6 is the same as that in the recording / playback unit 2, and therefore the description thereof is omitted here.
[0029]
In FIG. 1, a DIGITAL AUDIO I / F unit 7 extracts digital audio data, channel status data, and user data from various data input from the CD playback unit 6, and records the digital audio data in the recording / playback unit 1. 2 and the audio level determination unit 10, the channel status data is output to the category determination unit 9, and the user data is output to the subcode decoding unit 8. The channel status data is a 32-bit code including copyright information and the like, and the user data is CD subcode Q channel data and the like, and includes the track number and INDEX information of each track (musical piece).
[0030]
The subcode decoding unit 8 decodes the subcode information (subcode Q channel data) included in the user data input from the DIGITAL AUDIO I / F unit 7, and outputs the decoded subcode information to the system controller 3. To do.
[0031]
The category discriminating unit 9 discriminates the category (device type and the like) of the CD loaded in the CD reproducing unit 6 from the channel status data input from the DIGITAL AUDIO I / F unit 7.
[0032]
The audio level discriminating unit 10 determines whether the audio level of the audio data input from the DIGITAL AUDIO I / F unit 7 or the A / D converter 12 is equal to or less than a predetermined value, and the determination result is sent to the system controller 3. Output to.
[0033]
The D / A converter 11 converts the digital audio signal processed by the DSP of each unit into an analog signal when reproducing the MD in the recording / reproducing unit 1, the CD-R in the recording / reproducing unit 2, and the CD in the CD reproducing unit 6.
[0034]
The A / D converter 12 converts the analog signal input from the D / A converter 11 into a digital signal and outputs the digital signal to the recording / playback units 1 and 2 and the audio level determination unit 10.
[0035]
Next, the operation of the present embodiment will be described.
In the following description of the operation, the recording / reproducing units 1 and 2 are referred to as recording units 1 and 2.
[0036]
First, TNO Mark processing when recording audio data recorded on the CD of the CD playback unit 6 on the MD of the recording unit 1 and the CD-R of the recording unit 2 will be described based on the flowchart of FIG.
[0037]
The system controller 3 confirms whether or not there is an instruction to start recording from the CD to the MD and CD-R by the recording key operation of the key matrix 4 (step S1), and if there is an instruction to start recording (step S1). S1; YES), a recording start instruction signal is output to the recording unit 1 and the recording unit 2 (step S2).
[0038]
When the recording from the CD to the MD and the CD-R is started, the system controller 3 makes a TNO hit to the MD from the management information of the MD loaded in the recording unit 1 stored in a memory (not shown). It is confirmed whether or not it is possible (step S3). If the TNO of the MD of the recording unit 1 does not reach the maximum value (255) and TNO hitting is possible, this time, the management information of the CD-R loaded in the recording unit 2 recorded in the memory From this, it is confirmed whether or not TNO hitting to the CD-R is possible (step S4).
[0039]
If the TNO of the CD-R of the recording unit 2 does not reach the maximum value (99) and TNO hitting is possible (step S4; YES), the system controller 3 determines the MD of the recording unit 1 and the recording unit 2 TNO change for both CD-Rs is possible, and a TNO CHANGE detection process (see FIG. 3) described later is executed (steps S5 and S6).
[0040]
When the TNO of either MD or CD-R reaches the maximum value and TNO hitting becomes impossible (step S3; NO or step S4; NO), the system controller 3 temporarily stops the recording operation, The display 5 indicates that the TNO hit is impossible, and prompts the user to stop recording.
[0041]
While recording from the CD to the MD and CD-R, the system controller 3 confirms whether or not there is a recording stop instruction by the stop key operation of the key matrix 4 (step S7). If there is no stop instruction (step S7; NO), the process proceeds to step S3. When there is an instruction to continue recording by key operation, the system controller 3 resumes the recording operation without performing TNO.
[0042]
If there is an instruction to stop recording (step S7; YES), the system controller 3 outputs a recording stop signal to both the recording units 1 and 2 (step S8), and ends this TNO Mark process.
[0043]
Next, the TNO CHANGE detection process shown in steps S5 and S6 of FIG. 2 will be described based on the flowchart of FIG.
[0044]
First, the system controller 3 determines whether the recording from the CD to the MD and the CD-R is a digital path recording (step S11). If this recording is recording in an analog path via the D / A converter 11 and the A / D converter 12 (step S11; NO), the audio level determination unit 10 receives audio input from the A / D converter 12. It is determined whether or not the audio level of the data is below a certain value (step S14), and the determination result is output to the system controller 3.
[0045]
If the recording from the CD to the MD and the CD-R is a recording on the digital path (step S11; YES), the system controller 3 monitors the sub-Q data of the sub-code Q channel as a detection method of the TNO change. It is confirmed whether or not it is set to be performed (step S12). When sub Q data monitoring is not set as a TNO change detection method (step S12; NO), the audio level determination unit 10 performs the following operation on audio data input via the DIGITAL AUDIO I / F unit 7. The sound level is determined in step S14.
[0046]
When monitoring of sub-Q data is set as a TNO change detection method (step S12; YES), the sub-code decoding unit 8 includes a sub-code included in user data input from the DIGITAL AUDIO I / F unit 7. The Q channel data is decoded and output to the system controller 3. The system controller 3 determines whether or not the value of TNO included in the sub Q data of the sub code Q channel input from the sub code decoding unit 8 has changed. Determination is made (step S13). If the TNO of the sub Q data has not changed (step S13; NO), the system controller 3 repeats step S13.
[0047]
In step S13, when the TNO value of the sub-Q data changes (step S13; YES), the system controller 3 instructs the recording unit 1 and the recording unit 2 to make TNO (step S15), and this TNO CHANGE is performed. The detection process ends. Even in step S14, when the audio level of the audio data of the CD reproduced by the CD reproducing unit 6 becomes a predetermined value or less (step S14; YES), the system controller 3 determines that the TNO is switched and records. Instructing unit 1 and recording unit 2 to make a TNO (step S15).
[0048]
As described above, according to the audio system 100 of the present embodiment, when recording sound data of the same source on the recording / playback unit 1 and the disc loaded in the recording / playback unit 2, When TNO hitting on the loaded disc (for example, the CD-R of the recording / reproducing unit 2) becomes impossible, TNO hitting on the disc loaded in the other recording / reproducing unit (for example, MD of the recording / reproducing unit 1) is performed. By not performing the recording, the number of recording tracks on both discs is the same, and the recording contents of both are the same, so that the user is not confused and the usability is improved.
[0049]
Note that the description in this embodiment can be changed as appropriate without departing from the spirit of the present invention. For example, in this embodiment, it is determined whether or not TNO hitting on the MD and CD-R is possible, and when TNO hitting on one disk becomes impossible, TNO hitting on the other disk is also completed. However, the value of the number of recording tracks on both disks may be set in advance, and when the set value is exceeded, TNO hitting on both may be terminated. For example, in this example of recording on MD (maximum TNO: 255) and CD-R (maximum TNO: 99) as in this embodiment, the maximum number of CD-Rs is used as the value of the number of recording tracks on both disks. The TNO can be set to 99 (the smaller the maximum TNO).
[0050]
【The invention's effect】
According to the present invention, when the sound data of the same sound source is recorded on each disk loaded in a plurality of recording devices, if there is a disk that is determined to be unassignable by the determination means, the control means By stopping the allocation of track numbers to all the disks, the total number of tracks on each disk on which the sound data is recorded and the recorded contents are the same, so that the user is not confused and the usability is improved. .
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of main parts inside an audio system to which the present invention is applied.
FIG. 2 is a flowchart showing TNO Mark processing in the present embodiment.
FIG. 3 is a flowchart showing TNO CHANGE detection processing in the present embodiment.
[Explanation of symbols]
1, 2 Recording / playback unit 3 System controller 4 Key matrix 5 Display 6 CD playback unit 7 DIGITAL AUDIO I / F
8 Subcode decoding 9 Category discrimination 10 Audio level determination unit 11 D / A converter 12 A / D converter 100 Audio system

Claims (4)

An audio device having a plurality of recording devices each having a different maximum number of tracks of a loaded disc ;
Determining means for determining whether or not a new track number can be assigned to each disk when recording sound data of the same sound source on each disk loaded in the plurality of recording devices;
Control means for performing a process of stopping the assignment of track numbers to all the disks when the determination means determines that the assignment of track numbers is not possible among the respective disks;
An audio apparatus comprising:   2. The audio apparatus according to claim 1, further comprising notification means for notifying that when there is a disc number that is determined to be unassignable by each of the discs by the judging means. On the computer,
Whether or not a new track number can be assigned to each disk when recording sound data of the same sound source on each disk loaded in a plurality of recording devices having different maximum number of tracks of the loaded disk A determination function for determining
A control function for performing a process of stopping the allocation of track numbers to all the discs when there is a disc number that is determined to be unassignable among the respective discs by the determination function;
A program to realize   The program according to claim 3, further realizing a notification function for notifying that when there is a disc number that is determined to be unassignable among the respective disks by the determination function.

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