JPH06243572A - Recording medium playing device - Google Patents

Abstract

PURPOSE:To eliminate setting operation at every medium in the same magazine by playing all recording media based on corresponding sound field setting information when the read identification information coincides with the stored optional identification information. CONSTITUTION:Plural pieces of CDs in a same genre are loaded in a magazine, and the magazine is inserted into an A/C 10, and loading processing is performed to an initial CD. Then, identification signal TOC information recorded on the CD is read by a pickup 11, and whether the TOC information is equal to the TOC information held in a RAM 14 or not is decided. When they are the same, the TOC information held in the RAM 14 is read, and whether the TOC information is held in the RAM 14 or not is decided by a DSP 20 corresponding to the TOC information. When a setting mode is held, the setting mode is set to the DSP 20. Thus, when all recording media are played based on the sound field setting information, the setting at every medium in the same magazine is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium playing device for reproducing a recording medium such as a disc.

[0002]

2. Description of the Related Art Recording media include compact discs (hereinafter simply referred to as CD), mini discs (hereinafter simply referred to as MD), and the like. Here, a CD will be used for description.

As a standard, the CD has TO as identification information.
C (Table of Contents) information is recorded. The TOC information includes track information such as song number and song name, performance time, and information such as artist name and album name.

A CD autochanger (hereinafter simply referred to as A / C) is used as a recording medium playing device for loading and reproducing a plurality of such CDs.

The A / C reads the TOC information of the CD after loading each CD,
Information is registered in the RAM as a memory. The A / C is the TO
Based on the C information, functional operations such as a random performance function for randomly reproducing each of the plurality of CDs, a music selection function, and a track display function are performed.

Some of such A / Cs are connected to a digital signal processor (hereinafter simply referred to as DSP) which is a sound field correction device in order to improve sound quality and sound field effect. .

The setting mode which is the sound field setting information of the DSP includes a sound quality setting mode for performing genre selection such as jazz and vocal and manual setting, and a hall, church,
A sound field setting mode for selecting a sound field in a live house and setting a sound image localization is included.

Therefore, by manually operating this DSP, it is possible to improve the effect of the sound field and sound quality on the sound information of the CD played in A / C.

[0009]

However, according to the above-mentioned conventional recording medium playing device A / C, when the A / C is played back while the DSP is connected, the DSP suitable for each CD to be played back is reproduced. It was very troublesome to manually switch the mode setting.

Moreover, the mode setting must be switched for each song during random playing, which is very dangerous when driving a car.

The above-mentioned problem can be similarly applied to a CD player in which only one CD is loaded.

The present invention has been made in view of the above problems, and a first object of the present invention is to perform recording without requiring any setting operation of the sound field setting information for each recording medium in the same magazine. It is to provide a medium performance device.

A second object is to provide a recording medium playing device which does not require any setting operation of the sound field setting information for each recording medium.

[0014]

In order to achieve the first object, a recording medium playing device of the present invention is a recording medium playing device for playing the recording medium by accommodating a magazine into which a plurality of recording media can be loaded. A storage means for storing the identification information unique to the recording medium and the sound field setting information corresponding to the identification information, and a reading means for reading the identification information recorded on the recording medium designated in advance in the magazine. When the read identification information matches any identification information stored in the storage means, all the recording media in the magazine are recorded based on the sound field setting information corresponding to the matched identification information. Characterized by playing.

Further, in order to achieve the second object, a recording medium playing device of the present invention is a recording medium playing device for playing a recording medium, and is identification information unique to the recording medium and a sound corresponding to the identification information. A storage unit for storing the field setting information and a reading unit for reading the identification information recorded on the recording medium, and when the read identification information matches any identification information stored in the storage unit, The recording medium is played based on the sound field setting information corresponding to the matching identification information.

[0016]

With the first configuration, the sound field settings are collectively registered for all the recording media in the magazine by simply registering the sound field settings based on the identification information of a specific recording medium in the magazine. Therefore, for example, when a recording medium in which songs of the same genre are recorded is loaded into a magazine and played, the user does not need to perform any operation for setting the sound field.

Further, according to the second configuration, the sound field setting can be set in the recording medium only by registering the sound field setting based on the identification information of the recording medium. When playing the medium, the user does not need to perform any operation for setting the sound field.

[0018]

Embodiments of the recording medium playing apparatus of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a state in which a DSP is connected to an A / C to which the recording medium playing device of the present invention is applied.

In FIG. 1, the A / C 10 is connected to the DSP 20 via the control bus 30, corrects the sound field and sound quality by the DSP 20, and then outputs the sound via the amplifier section 31 and the speaker section 32. is there.

The A / C 10 is a pickup 11 which is a reading means for reading TOC information and audio information of a plurality of CDs which are recording media stored in a magazine (not shown),
A demodulator 12 that demodulates the audio information read by the pickup 11, a display 13 that displays performance time, track information, and the like, a RAM 14 that is a storage unit that stores the TOC information, and the A / C 10. It has a drive controller 15 for mechanically controlling the operation and a microcomputer 16 for controlling the entire A / C 10.

The DSP 20 sets A based on the setting mode which is the sound field setting information input by the operation unit (not shown).
A correction unit 21 that corrects the sound quality and the sound field of the voice information from / C10, and a microcomputer 22 that controls the DSP 20 as a whole.

Next, the operation of the above embodiment will be described. FIG. 2 is a flowchart showing the processing operation of the microcomputer 16 in the A / C 10.

First, a plurality of CDs of the same genre are loaded in the magazine. Then, as shown in FIG.
The magazine is inserted into the A / C 10 at 11, and the first CD in the magazine, that is, C of disc number 1
D is loaded. The C in step S12
The TOC information recorded in D is read by the pickup 11. In step S13, the TOC information is stored in RAM1.
It is determined whether it is the same as the TOC information held in No. 4.

If the TOC information does not match the TOC information held in the RAM 14, the TOC information read this time is stored in the RAM 14 in step S14, and the DC obtained by the DSP operation in step S15.
The setting mode of SP20 is registered in the RAM 14 as a memory.

In step S16, the drive control section 15 of the A / C 10 is caused to perform a reproducing operation based on the setting mode of the DSP 20, and it is determined in step S17 whether or not the magazine is changed. When there is no change in the magazine, for example, when the performance of the first CD in the magazine is finished and the performance of another CD is started, the process proceeds to step S16. Further, when there is a change in the magazine, for example, when the performance of all the CDs in the magazine is finished, the processing operation of the flowchart is finished.

If it is determined in step S13 that they are the same, the RA is determined in step S18.
The TOC information stored in M14 is called and the TOC
The setting mode of the DSP 20 corresponding to the information is the RAM 1
4 is determined. If the setting mode of the DSP 20 is not held, the process proceeds to step S15. If the setting mode of the DSP 20 is held, the setting mode is called in step S19 and the setting mode is set in the DSP 20.

According to the above-mentioned embodiment, the DS is set by the mode setting memory registration only based on the TOC information of a specific CD in the magazine, for example, the CD of the disc number 1.
Since the mode setting of P20 can be collectively set for all the CDs in the magazine, for example, when loading a plurality of CDs in which music of the same genre is recorded in the magazine and playing the CD, the user must There is no need to perform any operation for setting the sound field.

Moreover, since the TOC information of all the CDs in the magazine need not be read to identify the magazine, it is sufficient to read the TOC information of a specific CD in the magazine. Can be done quickly.

Although the recording medium playing device is the A / C 10 loaded with a plurality of CDs in the above embodiment, it may be a CD player loaded with a single CD, and step S12 in the flowchart shown in FIG. The same effect can be obtained by reading the TOC information of the loaded CD in step S17 and determining whether or not the CD is changed in step S17.

In the above embodiment, the recording medium is C
Although D is used, it goes without saying that the same effect can be obtained with MD.

[0031]

According to the recording medium playing device of the present invention configured as described above, a recording medium playing device for playing the recording medium by accommodating a magazine in which a plurality of recording media can be loaded, The storage unit stores identification information unique to the medium and sound field setting information corresponding to the identification information, and a reading unit that reads the identification information recorded on a recording medium designated in advance in the magazine. When the obtained identification information matches any identification information stored in the storage means, all recording media in the magazine are played based on the sound field setting information corresponding to the corresponding identification information. .

Therefore, by simply registering the sound field setting based on the identification information of a specific recording medium in the magazine, D
Since the SP mode setting can be collectively set for all the recording media in the magazine, for example, when a recording medium in which music of the same genre is recorded is loaded into the magazine and played, the user There is no need to perform any operation for setting the sound field.

Moreover, since the identification of a magazine is not required to read the identification information of all the recording media in the magazine, it is only necessary to read the identification information of the specific recording medium in the magazine. Can be done quickly.

According to the recording medium playing device of the present invention, the recording medium playing device plays the recording medium, and stores the identification information unique to the recording medium and the sound field setting information corresponding to the identification information. Means and reading means for reading the identification information recorded on the recording medium, and when the read identification information matches any identification information stored in the storage means, it corresponds to the matched identification information. The recording medium is played based on the sound field setting information.

Therefore, the DSP mode setting can be set for the recording medium only by registering the sound field setting based on the identification information of the recording medium. For example, when the same recording medium is played again. Therefore, the user does not need to perform any operation for setting the sound field.

[Brief description of drawings]

FIG. 1 is a block diagram showing a state in which a DSP is connected to a CD autochanger to which an audio reproducing device of the present invention is applied.

FIG. 2 is a flowchart showing a processing operation of a microcomputer in a CD autochanger to which the present invention is applied.

[Explanation of symbols]

10 CD autochanger (A / C: recording medium playing device) 11 pickup (reading means) 14 RAM (storage means)

Claims (2)

[Claims] 1. A recording medium playing device for playing a plurality of recording mediums in a magazine which can be loaded, wherein identification information unique to the recording medium and sound field setting information corresponding to the identification information are stored. Storage means and a reading means for reading the identification information recorded on a recording medium designated in advance in the magazine, and the read identification information matches any identification information stored in the storage means. When performing, the recording medium playing device is characterized in that all the recording media in the magazine are played based on the sound field setting information corresponding to the matching identification information. 2. A recording medium playing device for playing a recording medium, comprising: storage means for storing identification information unique to the recording medium and sound field setting information corresponding to the identification information; and identification information recorded on the recording medium. When the read identification information matches any identification information stored in the storage means, the recording medium is read based on the sound field setting information corresponding to the matched identification information. A recording medium playing device characterized by playing.