JP2003281870A - Audio player - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an audio player in which a user can freely set operation sound, sound effects or the like with a simple operation. <P>SOLUTION: An audio CD, a compressed audio file, and the audio player as a device that also functions for radio receiving are provided. When installation processing is started with a prescribed operation in the audio player, files are read from a CD medium with a compressed audio file as sound effects prewritten, and the user can make selections through a user interface such that which of prescribed operations is associated with each of the read files. The installation processing associates the compressed audio file with a prescribed operation and stores the compressed audio file associated with the prescribed operation. At a prescribed operation such as mode switching when the audio player is started, the stored compressed audio data are reproduced as sound effects. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio reproducing apparatus, and more particularly to reproducing sound effects when a button is operated in such an apparatus.

[0002]

2. Description of the Related Art In audio reproduction equipment, in particular, in-vehicle audio equipment whose size is limited, it is widely aimed to improve operability and commercial value by outputting an operation sound when a button is operated. Has been done. Conventionally, such an operation sound is an oscillating sound such as a beep sound, or even if the operation sound can be output by reproducing the audio data, the content of the reproduced audio data can be reproduced by the user. Can not be set freely.

[0003]

With an in-vehicle audio device or the like, an operation sound or a sound effect is output not only when a button is operated but also when the system is started, and moreover, such an operation sound or a sound effect is output by a user. It would be extremely useful if the can be set freely. The present invention is
This is done in view of such circumstances, and in a relatively small audio device such as an in-vehicle audio device,
The purpose is to allow the user to freely set operation sounds, sound effects, and the like with simple operations.

[0004]

In order to achieve the above-mentioned object, data recorded in a recording medium is read into an audio reproducing device, and data out of the read data which satisfies a predetermined condition is stored in the device. Information storage means for storing the information in association with the predetermined operation is added. Further, by detecting the operation of the device in the audio reproduction device, when the predetermined motion is detected, the data corresponding to the detected predetermined motion among the data stored in the information storage means is detected. A control means for controlling the reproduction is added (claim 1). Therefore, the user can record the data in the recording medium in advance and cause the audio reproducing device to read the data as the data such as the sound effect.

The data recorded on the recording medium may be, for example, audio data (claim 2). The predetermined condition may be, for example, a condition regarding the size of data (claim 3).

If the audio reproducing device is provided with a user interface, the information storage means is an input processing means for the user to selectively input the association between the read data and the predetermined operation through the user interface. (Claim 4).
That is, in this case, the user can select which predetermined operation the read data is associated with.

In order to achieve the above object, there is provided an audio reproducing apparatus provided with a reading means for reading audio data recorded on a recording medium and an audio reproducing means for carrying out a reproducing process on the basis of the audio data read by the reading means. Further, an information storage unit for reading audio data through the reading unit and storing audio data satisfying a predetermined condition in the read audio data in association with a predetermined operation of the operation of the apparatus, and an operation of the apparatus. Of the audio data stored in the information storage means when the predetermined operation is detected, the audio data corresponding to the detected predetermined operation is reproduced through the audio reproduction means. And means are added. When the audio data is reproduced under the control of the control means, that is, when the predetermined operation is detected and the sound effect is reproduced, the reading / reading function originally provided in the audio reproducing device for reproducing the recording medium is performed. Regeneration means are used.

The predetermined condition may be a condition relating to the size of audio data or the reproduction time (claim 6).

If the audio reproducing device is provided with a user interface, the information storage means allows the user to selectively input the association between the read audio data and the predetermined operation through the user interface. It can be configured to have means (claim 7). That is, in this case, the user can select which predetermined operation the read audio data is associated with.

The audio reproducing device described above can be configured as a vehicle-mounted device having a predetermined size (claim 8).

[0011]

FIG. 1 is a diagram showing a configuration of an audio reproducing apparatus 100 capable of reproducing a compressed audio file as an embodiment of the present invention. The compressed audio reproducing apparatus 100 is configured as a dual-purpose player having both a function of reading data from a CD medium 1 (hereinafter referred to as a disc 1) and reproducing an audio CD and a function of reproducing compressed audio data such as MP3. It also has a radio reception function. The audio reproducing device 100 is provided with various functions as a device for reproducing an audio CD, compressed audio data, and a radio. The finally created analog audio signal is sent to the speaker 8 via the amplifier 81.
2 is supplied and the sound is reproduced. The compressed audio reproducing device 100 is configured as a so-called 1DIN or 2DIN size vehicle-mounted device.

In the audio reproducing apparatus 100, for example, when the function key of the operation section 63 is pressed to switch the mode from radio reception to CD reproduction, operation sounds and sound effects are associated with predetermined operations. The registered compressed audio file is reproduced as (hereinafter, simply referred to as a sound effect). The registration of the compressed audio file as the sound effect in the audio reproducing device 100 can be realized by writing the compressed audio file in a disc in advance, mounting the disc in the audio reproducing device 100, and activating a predetermined installation process. Is configured.

First, the configuration of the audio reproducing apparatus 100 will be described with reference to FIG. Audio playback equipment 1
00 has a mechanical unit 2 to which the disc 1 is mounted. This mechanism unit 2 is provided with a spindle motor 3 for disc rotation and a pickup 4, and although not shown in detail, a mechanism for detecting the presence / absence of a disc and a fixed position, a mechanism for detecting the completion of disc mounting, a disc , A mechanism for detecting the innermost position of the pickup, a spindle motor for moving the pickup, and the like. Moreover, the pickup 4 includes components such as a focus coil, a tracking coil, a laser diode, and a photodetector. The drive control and servo control of the spindle motor 3, the pickup 4, etc. are controlled by the servo control unit 22 of the CD signal processing unit 20.
And the control by the mechanical system control unit 50.

The mechanical system controller 50 includes a driver 5 and a CD.
The signal processing unit 20, the digital signal processing unit 30, and the flash ROM 55 are connected, and the mechanical system control unit 50 including, for example, a microcomputer IC controls these components. Further, the mechanical system control unit 50 acquires the TOC (Table Of Contents) recorded in the lead-in of each disc from the CD signal processing unit 20, and determines whether it is an audio CD or MP3.
It is configured so that it can be determined whether the compressed audio file is a CD-ROM in which the compressed audio file is recorded.

In the pickup 4, the EFM (Eight-to-F)
The RF signal, the tracking signal, and the focus signal that have been subjected to ourteen modulation are obtained, and these signals are supplied to the CD signal processing unit 20 via the RF amplifier 10 which is an amplification circuit. The tracking signal and the focus signal are used to control the tracking coil and the focus coil of the pickup 4. R
F signal is data of audio CD (CD-DA) or M
After it is determined whether or not it is P3 compressed data, it is converted into an audio signal. The CD signal processing unit 20 generates various reference clocks necessary for reproducing the audio signal, and these reference clocks are appropriately supplied to necessary portions.

The EFM decoder 21 decodes CD audio data (CD_DA data) and outputs it to L / R.
It is converted into a digitized audio signal consisting of three signals of a clock, a bit clock and serial data. The L / R clock indicates whether the audio sampling data transferred as serial data is the L channel or the R channel, and has a frequency corresponding to the time division cycle of the L channel data and the R channel data. The bit clock is a synchronous clock for each sampling data transferred as serial data. Also, the EFM decoder 2
1 supplies the compressed audio data to the digital signal processing unit 30 together with the L / R clock and the bit clock.
That is, when the mounted disc is an audio CD, CD audio data is supplied to the digital signal processing unit 30, and when the mounted disc is a CD-ROM in which compressed audio data is recorded, , Compressed audio data is provided.

When the data supplied to the digital signal processing section 30 is CD audio data, a so-called sound jump prevention function is executed by utilizing the RAM 40 which is a buffer memory. This sound jump prevention function is C
Under the control of the D-DA sound jump prevention unit 31, the RAM 40, which is a buffer memory, stores a predetermined amount of audio data.
It is realized by reading the audio data from the RAM 40 sequentially while reproducing the audio data and reading the error portion again during the reproduction.
The audio data from the digital signal processing unit 30 is D
It is supplied to the A / A converter 23, where it is converted into an analog audio signal.

On the other hand, when the data supplied to the digital signal processing section 30 is compressed audio data, the compressed data is once stored in the RAM 40 and then sequentially read out and expanded by the MP3 decoder 32. The audio data decompressed here is the D / A converter 2
3 is converted into an analog audio signal. The switching of the functions of the digital signal processing unit 30 is performed under the control of the mechanical system control unit 50. The flash ROM 55 stores various data necessary for the mechanical system control unit 50 to achieve a predetermined reproducing function.

A radio receiving unit 70, an operating unit 63, and a display unit 65 are connected to the host-side control unit 60, and the host-side control unit 60 controls these parts. The host-side control unit 60 is composed of, for example, a microcomputer IC, switches the functions of the radio receiver and the CD player according to the operation input from the operation unit 63, and assigns various functions to the operation keys of the operation unit 63. That is, the display unit 65 has a function of displaying predetermined information.

FIG. 2 shows a block diagram of the front panel of the audio reproducing apparatus 100. As shown in the figure, the front panel is provided with a display unit 65 including a flat display panel and various operation buttons. The audio playback device 100
When operating as a radio receiver, operation buttons 81
Reference numeral -85 is a preset key to which a predetermined channel is assigned, and the host-side control unit 60 controls the radio reception unit 70 so that the broadcast of the channel corresponding to the operated preset key is selected. In addition,
Although not shown, various keys such as a function key for mode switching, a skip key, an enter key, and an eject key are provided on the front panel.

The host-side control section 60 and the mechanical system control section 50 are connected to each other, exchange data or control information as appropriate, and cooperate with each other so that the audio reproducing apparatus 100 achieves a predetermined function.

Next, referring to the operation flow of FIG. 3, an audio reproducing apparatus 1 for a compressed audio file as a sound effect.
The details of the installation process to 00 will be described. This installation process is activated when a predetermined operation is performed via the operation unit 63. Further, it is assumed that the user has already written a favorite compressed audio file as a sound effect on the disc 1.

When this installation process is started by a predetermined operation and the disc 1 is inserted (S1), the TOC as management information recorded in the lead-in of the disc 1
Information is read (S2). According to the TOC information, the disc 1 is analyzed (S3), and it is determined whether the loaded disc 1 is an audio CD (CD_DA) or a CD-ROM. That is, a compressed audio file (MP
3, it is determined that there is a WMA file (S4: YES), the process proceeds to step S6 to perform the installation process.

If such a compressed audio file cannot be found (S4: NO), it is determined that the loaded disc 1 is a normal audio CD and the normal music reproduction mode is set (S5). . this is,
During the installation process, the user mistakenly made audio C
This is a countermeasure against the case where D is inserted.

In step S6, the loaded disc 1
Indicates that it is a sound effect, that is, a compressed audio file written (customized CD).
To display. Next, the size of the compressed audio file recorded on the disc 1 is checked, and if the file size does not satisfy the predetermined condition (S7: NO), it is not appropriate to use the file as a sound effect, so install it here. In order to stop the processing, the file size is displayed and the disc 1 is ejected (S8). This is to prevent such a file from being installed, because if the file size is large, the reproduction time becomes long and the sound effect cannot be practically used. As the predetermined condition used in step S7, it is possible to use that the file size is a predetermined value (for example, 100 kbytes) or less, and the reproduction time is a predetermined time (for example, 30 seconds) or less.

In step S7, it is preferable that the installation process be stopped only when all of the compressed audio files on the disc 1 do not satisfy the predetermined condition. Alternatively, it is possible to perform a process in which the compressed audio data in the disc 1 that does not satisfy the predetermined condition is repelled and only the data that satisfies the predetermined condition is used in the subsequent process.

The process after step S9 is a process for performing registration as a sound effect in order from the first file in the file structure of the disc 1. That is, step S
In 9, the process of displaying the first file name on the file structure of the disc 1 and then acquiring and storing the information associating the sound effect and the predetermined action through the user input from the operation unit 63 ( S10 to S13).

In step S10, when the user operates the eject key of the operation unit 63 (S10: eject key), an error message is displayed so as to stop the installation process, and ejection is performed (S11). The user operates the operation unit 6
When the enter key 3 is pressed (S10: Enter key), the user's selection for associating the currently displayed compressed audio file with a predetermined operation is accepted (S12). The selection acceptance process here is achieved by the user selectively operating the skip key of the operation unit 63 to perform a predetermined operation to be associated with the compressed audio file displayed in step S9.

There can be various predetermined operations of the device suitable for outputting the sound effect, but here, as typical examples, the following predetermined operations are targeted. -At startup-Mode switching 1 (function switching from CD playback to radio reception) -Mode switching 2 (function switching from radio reception to CD playback) -Association between the compressed audio file displayed at the end and the prescribed operation Upon completion, the file is then stored in the storage location in the flash ROM 55 determined by the selected type of predetermined operation (S13).

Since the processing for the first file in the disk 1 has been completed, it is checked in step S14 whether there is a file to be further processed in the disk 1, and if there is a file (S14: YES), the file is processed. Is displayed (S15), and the above steps S10 to S are performed respectively.
Steps S16 to S19, which are the same processes as in step 13, are executed. Then, in step S20, it is checked whether there is a file to be further processed, and if there is a file (S20: YES), the processes from step S15 are repeated. If the eject key is pressed (S16: eject key), if there are no files to be processed (S
14: NO or S20: NO), which means that the installation has been completed, so the completion of installation is displayed and ejected (S17).

Through the above processing, the compressed audio file is stored in a predetermined storage location in the flash ROM 55 for each type of predetermined operation. Through the above processing, information is stored in the flash ROM 55 in association with each other as shown in Table 1 below. For example, at address 1, which is the storage location of the sound effect at startup, the audio file that is selected by the user to be played at startup is stored.
1. mp3 is stored.

[0032]

[Table 1]

The host-side control section 60 detects an operation at the time of starting and ending of the audio reproducing apparatus 100, and a mode switching etc. through the operation section 63, and responds to the detected operation. The mechanical system control unit 50 is instructed to reproduce the file. Therefore, for example, when the audio reproducing device 100 is powered on and activated, audio1. mp3 is a speaker 8
Played from 2. Also, if the mode is switched from CD playback to radio reception, audio2. mp3 is reproduced from the speaker 82.

FIG. 4 shows, as an example of the operation of effect sound reproduction,
The operation | movement flow when the sound effect is reproduced at the time of starting is shown. When the host-side control unit 60 detects that the file is for startup (S51), the host-side control unit 60 issues a command (“BGM for startup” to reproduce the file for startup so that the file for startup is reproduced). The reproduction command ") is transmitted to the mechanical system control unit 50 (S52). In the mechanical system control unit 50,
When the "start-up BGM reproduction command" is received, the BGM reproduction processing is started (S53). That is, flash R
A compressed audio file is read from a predetermined address (address 1) in the OM 55 and expanded in the RAM 40 (S54). Then, the data stored in the RAM 40 is expanded and reproduced via the MP3 decoder 52 (S55).

In the installation process shown in FIG. 3, the user writes desired audio data on the CD-R, CD-RW, etc., so that the audio reproducing device 1
Sound effect can be set freely for 00.
In this case, the file size is checked and only the appropriate sound effects are registered.

When reading the disc in which the sound effect is written and when reproducing the sound effect, the same configuration as that in the case of reproducing the CD-ROM or the like in which the compressed audio file is recorded as a normal process is used. That is,
The structure required for registration and reproduction of sound effects is shared with the structure used for reproduction of a CD medium. Therefore,
There is no need for a separate reader for registering sound effects or a separate player for playing sound effects.

The above-described audio reproducing device 100 is an example of an audio reproducing device using a disc such as an audio CD or CD-ROM as a recording medium.
By appropriately changing the configuration for reading and signal processing, the present invention can be applied to a reproducing device using various recording media such as a DVD, a hard disk, a memory card, and a flash ROM.

A file to be reproduced in association with a predetermined operation may be image data instead of audio data, and installation processing and reproduction processing associated with the predetermined operation may be performed on the image data.

[0039]

As described above, according to the present invention,
The user can register the sound effect with simple operation to the audio device, and at the time of startup, mode switching, etc.
The registered sound effect can be played. Files that do not meet the predetermined conditions as sound effects are not registered, which is extremely useful for the user.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a compressed audio reproducing device as an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a front panel of the compressed audio playback device of FIG.

FIG. 3 is a flowchart showing a process of installing a compressed audio file as a sound effect in an audio reproducing device.

FIG. 4 is a flowchart showing an operation when a sound effect is played at the time of startup, as an example of an operation for playing a sound effect.

[Explanation of symbols]

2 mechanical units 10 RF amplifier 20 CD signal processing unit 30 Digital signal processor 40 RAM 50 Mechanical control unit 55 Flash ROM 60 Host side controller 63 Operation part 65 Display 100 audio playback equipment

Claims (8)

[Claims] 1. An information storage means for reading data recorded on a recording medium, and storing, of the read data, data satisfying a predetermined condition in association with a predetermined operation of the operation of the device, and an operation of the device. By performing the detection of the above, when the predetermined operation is detected, control is performed so that, of the data stored in the information storage means, the data corresponding to the detected predetermined operation is reproduced. And an audio reproducing apparatus comprising: 2. The audio reproducing device according to claim 1, wherein the data recorded on the recording medium is audio data. 3. The audio reproducing apparatus according to claim 1, wherein the predetermined condition is a condition regarding a data size. 4. The information storage means further comprises a user interface, and the information storage means has an input processing means for a user to selectively input the association between the read data and a predetermined operation through the user interface. Claim 1 characterized by the above-mentioned.
4. The audio reproducing device according to claim 3. 5. A reading unit that reads audio data recorded on a recording medium, an audio reproducing unit that performs a reproduction process based on the audio data read by the reading unit, and read audio data through the reading unit. An information storage unit for storing audio data satisfying a predetermined condition of the read audio data in association with a predetermined operation of the operation of the device, and detecting the operation of the device to detect the predetermined operation. The audio data stored in the information storage means, the audio data corresponding to the detected predetermined operation is reproduced through the audio reproduction means. Audio playback device. 6. The audio reproducing apparatus according to claim 5, wherein the predetermined condition is a condition relating to a size of the audio data or a reproduction time. 7. The information storage means further comprises a user interface, and the information storage means has an input processing means for a user to selectively input the association between the read audio data and a predetermined operation through the user interface. The audio reproducing device according to claim 5 or 6, characterized in that. 8. The audio reproducing device according to claim 1, wherein the audio reproducing device is configured as a vehicle-mounted device having a predetermined size.