JP2009295231A - Audio device, audio data retrieving method, and retrieval program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an audio device, audio data retrieving method and retrieval program, which facilitate retrieval of audio data by using a preset feature to play back thereof. <P>SOLUTION: In the audio data retrieving method, a preset key is pressed down in a first input state (S101), audio data corresponding to the preset key is read out from a storage part (S102), and then the front end of the data is sequentially scanned and played back (S103). When the preset key is pressed down in a second input state during scanning and playback (S104), the audio data under scanning and playback is uninterruptedly played back (S105). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an audio device having a function of reproducing audio data stored in a storage device, and more particularly to a method for searching (seeking) audio data.

  The in-vehicle audio apparatus has a ripping function for storing audio data from an external medium such as a CD or DVD in a storage device, and can repeatedly reproduce the audio data read from the storage device. Furthermore, the in-vehicle audio apparatus makes it easy to reproduce and search audio data only by operating the preset key by associating and registering audio data with the preset key.

  Patent Document 1 stores table data including identification information of a preset key and information for specifying music data registered in the preset key. When the preset key is operated, the music data is stored based on the table data. A data reproducing apparatus for reproducing is disclosed.

JP 2003-203463 A

  The ripping function of the in-vehicle audio device can store the audio data in the storage device, but if the music information database such as CDDB is not provided, the audio data such as playlist and album title is stored in the storage device. I can't let you. For this reason, it is not possible to perform browsing for searching for audio data while displaying a playlist, album title, or the like on a display as in a general audio device. In addition, when the display size of the in-vehicle audio device is small, even if it has information such as a playlist and an album title, it may not be possible to search for audio data by displaying them on the display.

  The preset function of the audio device facilitates the search of audio data. However, when preset keys are increased or multiple audio data are assigned to one preset key, which audio data is assigned to which preset key. I don't know if it's assigned. In this case, when searching for desired audio data, the audio data must be reproduced one by one by operating the preset key, which requires a lot of time to search for the audio data and is complicated. It becomes work.

  The present invention solves such a conventional problem, and provides an audio device, an audio data search method, and a search program that can easily search and reproduce audio data using a preset function. For the purpose.

  An audio apparatus having a function of reproducing audio data according to the present invention includes a plurality of input keys, storage means for storing audio data, and audio data stored in the storage means in each of the plurality of input keys. Preset means for allocating the input, detection means for detecting the input of the plurality of input keys, and when the input of the input key is detected by the detection means, a plurality of audio data corresponding to the input keys based on the preset means Reproduction control means for reading out from the storage means and sequentially scanning and reproducing the head portions of the read audio data.

  Preferably, the input key has first and second input states, and the reproduction control unit performs scanning reproduction of a plurality of audio data when the detection unit detects the first input state of the input key. The audio data scanned and reproduced when the second input state is detected is reproduced in a normal manner. Preferably, the reproduction control means continuously reproduces the audio data being scanned and reproduced when the second input state is detected during the scanning and reproduction. The preset means can assign a plurality of audio data in units of albums to the input keys.

  The audio data search method / search program according to the present invention is executed in an audio device having a function of storing audio data in a storage device, reading the audio data from the storage device, and reproducing the audio data, Assigning a plurality of audio data stored in the storage device to each of the plurality of input keys; detecting an input of any of the plurality of input keys; and a plurality of input keys corresponding to the input keys from which the input has been detected. Reading audio data from the storage device, and sequentially scanning and reproducing head portions of the plurality of read audio data.

  According to the present invention, since the head portions of a plurality of audio data registered in the preset key are sequentially scanned and reproduced, it is possible to easily recognize which audio data is assigned to which preset key, and Audio data search can be easily performed in a short time.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings. Here, an on-vehicle or home audio device is illustrated, but a portable or portable audio device may be used.

  FIG. 1 is a block diagram showing a configuration of an audio apparatus 10 according to an embodiment of the present invention. The audio apparatus 10 includes an input unit 20 having a plurality of input keys, an external interface (hereinafter referred to as an external I / F) 30 for connecting an external medium, a display unit 40, a sound output unit 50 for outputting audio data from a speaker, A storage device 60 such as a hard disk, a program memory 70 for storing a program, a data memory 80 for temporarily storing data, and a control unit 90 for controlling each unit.

  FIG. 2 is a configuration example of the front unit of the audio apparatus main body. As shown in the figure, an input unit 20 and a display unit 40 are arranged in the front unit. The input unit 20 includes input keys such as a plurality of preset keys 22 and a plurality of audio operation keys 24. The display unit 40 includes a display for displaying the reproduction time, title, and the like of the audio data.

  The preset key 22 is configured by using a normal press key, but other than this, the preset key may be displayed on the display and touched to select the preset key. The audio operation key 24 includes an audio data playback button, a pause button, a playback stop button, a fast forward button, a backward button, and the like.

  In a present Example, as a preferable aspect, the preset key 22 is comprised using the double function switch which has two input states. FIG. 3 shows a configuration of a preset key having a double function function.

  The preset key 22 includes a pushable knob 100 that protrudes from the operation surface 14 of the front unit, an elastic member 110 that is made of rubber that comes into contact with a protrusion 102 formed on the bottom surface of the knob 100, and a lower portion of the elastic member 110. And a tact switch 130 disposed below the film switch 120.

  The film switch 120 has, for example, electrodes on both sides of a film-like spacer, and a plurality of conductive particles are scattered inside the spacer. As shown in FIG. 3A, when the knob 100 is pressed with a small force F1, the force is transmitted to the film switch 120 via the elastic member 110, and the film switch 120 is turned on. Further, as shown in FIG. 3B, when the knob 100 is pressed with a large force F2, the force is transmitted to the tact switch 130, and the tact switch 130 is turned on.

  The storage unit 60 stores audio data acquired from an external medium (CD, semiconductor memory, or other medium) connected to the external I / F 30. Audio data may be stored hierarchically using files or folders, and the files or folders can be classified into artists, albums, genres, and the like.

  Furthermore, the storage unit 60 includes preset information for registering audio data in the preset key. The preset information can be appropriately changed by user input. FIG. 4 shows a preset table included in the preset information. The preset table defines the relationship between the preset keys 22 arranged on the front unit and the audio data assigned thereto. In the example of FIG. 4, the files of albums A, B, C... E, F are assigned to each of the preset keys 1 to 6, and each file has a plurality of music (A1,..., A -N, ..., F-1, ..., Fn). Note that the audio data assigned to the preset key is not limited to an album unit, but may be a song unit, or other files and folders may be associated with each other.

  The program memory 70 is a ripping program for storing audio data from an external medium in the storage unit 60, a reproduction program for reproducing audio data, a preset program for assigning audio data to the preset key 22, and audio data in response to the preset key. It includes a search program for searching. The control unit 90 executes these programs and controls each operation. The data memory 80 temporarily stores audio data read from the storage unit 60, preset information, and the like.

  FIG. 5 is a functional block diagram of an audio data search program. The search program includes a preset key detection unit 200 that detects which preset key has been input, an input state determination unit 210 that determines an input state of the preset key, and a reading unit 220 that reads audio data corresponding to the preset key. A reproduction control unit 230 that reproduces the read audio data in a manner corresponding to the input state of the preset key.

  The preset key detection unit 200 detects that any of the six preset keys (see FIG. 2) is in the first input state (see FIG. 3A). The input determining unit 210 detects whether or not the preset key in the first input state is in the second state (see FIG. 3B). The reading unit 220 reads the audio data assigned to the preset key detected by the preset key detection unit 200 with reference to a preset table (see FIG. 4), and stores them in the data memory 80.

  When the first input state of the preset key is detected, the playback control unit 230 performs scan playback in which the head portion of the assigned audio data is played back for a predetermined time. For example, when the first input state of the preset key # 1 shown in FIG. 4 is detected, the head portion (for example, 10 seconds) of the music piece A-1 is reproduced, and then the head portion of the music piece A-2 is played. It is played and this is repeated until the last song An.

  When the second input state of the preset key is detected, the playback control unit 230 continuously plays back the audio data being scanned and played from the beginning to the end in a normal manner. For example, if the second input state of the preset key # 1 is detected while the head portion of the music piece A-2 is being played back in the scan playback, the music piece A-2 is continuously played back to the end. When the music piece A-2 is reproduced in the normal state in the second input state, the music piece A-3 can be reproduced continuously. Further, the playback control unit 230 may repeatedly play the music piece A-2 a certain number of times.

  Next, the search operation of the audio apparatus according to the present embodiment will be described with reference to the flowchart of FIG. When searching for audio data stored in the audio device, the user first selects one of the preset keys 22. With this selection, the preset key is pressed until the first input state is reached (step S101). When the preset key which is the first input state is detected by the preset detection unit 200, the reading unit 220 reads the audio data corresponding to the preset key from the storage unit 60 (step S102) and stores it in the data memory 80. To do.

  Next, the reproduction control unit 230 refers to the determination result of the input state determination unit 210, and reproduces the head portion of the first audio data stored in the data memory 80 if the preset key is not in the second input state. (Step S103).

  The reproduction control unit 230 monitors the determination result of the input state determination unit 210 (step S104), and if not in the second input state, reproduces the head portion of the next audio data. If the second input state is determined by the input state determination unit 210 during playback of the head portion (step S104), the playback control unit 230 starts the playback of the audio data being scanned and played back from the playback of the head portion. Switching to continuous reproduction (step S105).

  When continuous playback is performed, the next audio data may be scanned or played back continuously. Scan playback is performed for all audio data assigned to the preset key. If another preset key is pressed during the scan, the scan playback is stopped and the preset key corresponds to the other preset key. Audio data scan playback is performed.

  FIG. 7 shows an example of search when the preset key is used. FIG. 7A shows an example in which the music pieces A-1,... An of the album A are scanned and reproduced when the preset key # 1 is in the first input state. FIG. 7B shows that when the preset key # 1 is in the second input state during the scan playback of the music A-2, the music A-2 is continuously played, and the subsequent music An is continuously played back. Is done. When the continuous reproduction is stopped, the preset key # 1 may be pressed again in the first input state.

  Next, a second embodiment of the present invention will be described. In the second embodiment, a preset key having a single input state is used. FIG. 8 is a diagram illustrating the configuration of the front unit of the audio apparatus according to the second embodiment. In the second embodiment, in addition to the preset key 22, a switching key 26 for switching between scan reproduction and continuous reproduction is provided. For example, when scan playback is started by pressing a preset key, when the switch key 26 is pressed, the audio data being scanned and played is switched to continuous playback. On the other hand, if the switch key 26 is pressed during continuous playback, the mode is switched to scan playback.

  Further, instead of using the switch key 26, the scan reproduction and the continuous reproduction may be switched based on the number of times the preset key is selected. For example, the scan reproduction may be started by the first selection of the preset key, and the scan reproduction may be switched to the continuous reproduction by the second selection.

  The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment, and various modifications are possible within the scope of the gist of the present invention described in the claims.・ Change is possible.

It is a block diagram which shows the structure of the audio apparatus based on the Example of this invention. It is a figure which shows the structure of the front unit of the audio apparatus shown in FIG. FIG. 3A is a schematic diagram of a double function switch used for a preset key according to the present embodiment, FIG. 3A shows a first input state, and FIG. 3B shows a second input state. It is an example of a preset table. It is a functional block diagram of an audio data search program according to the present embodiment. It is a flowchart which shows the search operation | movement of the audio apparatus based on a present Example. FIG. 7A shows a search example when the preset key is in the first input state, and FIG. 7B shows a search example when the preset key is in the second input state. It is a figure which shows the structure of the audio apparatus based on 2nd Example of this invention.

Explanation of symbols

10: In-vehicle audio device 12: Front unit 14: Operation surface 20: Input unit 22: Preset key 24: Audio operation key 26: Switch key 30: External I / F
40: Display unit 50: Audio output unit 60: Storage unit 70: Program memory 80: Data memory 90: Control unit 100: Knob 110: Elastic member 120: Film switch 130: Tact switch

Claims (6)

An audio device having a function of reproducing audio data,
Multiple input keys,
Storage means for storing audio data;
Preset means for assigning audio data stored in the storage means to each of the plurality of input keys;
Detecting means for detecting inputs of the plurality of input keys;
When the input of the input key is detected by the detecting means, a plurality of audio data corresponding to the input key is read from the storage means based on the preset means, and the head portions of the read audio data are sequentially scanned and reproduced. And an audio device having control means. The input key has first and second input states,
The reproduction control means scans and reproduces a plurality of audio data when the detection means detects the first input state of the input key, and scans and reproduces the audio data when the second input state is detected. The audio device according to claim 1, wherein the audio device plays in a normal manner. The audio apparatus according to claim 2, wherein the reproduction control means continuously reproduces the audio data being scanned and reproduced when the second input state is detected during the scanning and reproduction. The audio device according to claim 1, wherein the preset means assigns a plurality of audio data in units of albums to input keys. A method for searching audio data in an audio device having a function of storing audio data in a storage device, reading the audio data from the storage device, and reproducing the audio data,
Assigning a plurality of audio data stored in the storage device to each of the plurality of input keys;
Detecting an input of any of the plurality of input keys;
Reading out a plurality of audio data corresponding to the input keys for which input has been detected from the storage device, and sequentially scanning and reproducing head portions of the read-out audio data;
A search method comprising: An audio data search program executed by an audio device having a function of storing audio data in a storage device, reading the audio data from the storage device, and reproducing the audio data,
Assigning audio data stored in the storage device to each of the plurality of input keys;
Detecting an input of any of the plurality of input keys;
Reading out a plurality of audio data corresponding to the input keys for which input has been detected from the storage device, and sequentially scanning and reproducing head portions of the read-out audio data;
A search program having

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