JP2010197941A - Audio playback device test system, integrated circuit device, audio playback evaluation system, and testing method for audio playback device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an audio playback device test system for playback of audio by one playlist, even when sequence command information and stream command information are mixed, when audio is reproduced by the playlist. <P>SOLUTION: The audio playback device test system 1 for playback of audio, includes: a command decision unit 10 for determining whether input information 30 is the sequence command information 22 or the stream command information 24; and a command communication control unit 60 which transmits sequence information corresponding to the sequence command information 22 according to protocol for sequence command transmission, and audio information corresponding to the stream command information according to protocol for stream command information, when determined by the command decision unit 10 that the input information 30 is the sequence command information 22. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  Some embodiments of the present invention relate to an audio playback device test, an integrated circuit device, an audio playback evaluation system, an audio playback device test method system, and the like.

  2. Description of the Related Art There is known an electronic device equipped with a voice playback system that is equipped with a voice playback device and outputs a voice message.

  In such an audio reproduction system, when an audio file is reproduced, the reproduction order of the audio file is described, and a file called a playlist recorded on the recording medium is read and described in the playlist. Some audio files are played according to the order of the file names.

  In such an audio reproduction system, a method of reproducing a stream using a playlist is known. Also, a method of reproducing using a file that stores object data that forms a series of content information such as video information and audio information and a playlist that stores the reproduction sequence is known.

JP 2005-285309 A

  In an audio playback system that performs sequence playback and stream playback, each playlist according to sequence playback and stream playback is required, and it was not possible to play a mixture of stream playback and sequence playback in a single playlist. . Therefore, it was difficult to perform voice evaluation by combining both.

  The present invention has been made in view of the above problems. According to some aspects of the present invention, it is possible to provide an audio reproduction device test system that can reproduce audio in one playlist in an audio reproduction device test system that reproduces audio.

  (1) The present invention provides a sequence in which the input information indicates a reproduction order of audio information constituting an audio message in an audio reproduction device test system for outputting an audio reproduction command to be input to the audio reproduction device based on input information. A command determination unit for determining whether the command information is sequence command information for specifying information or stream command information for specifying audio information to be reproduced; and when the command determination unit determines that the input information is the sequence command information Is a command for transmitting sequence information corresponding to the sequence command information according to a sequence command transmission protocol, and transmitting audio information corresponding to the stream command information according to a stream command transmission protocol when it is determined as the stream command information. Communication control unit , Related to the audio reproduction device testing system, which comprises a.

  The input information may be information from a playlist. A playlist is a list that is used to control the playback order of music and video in the audio playback system, and that records the playback order of music and video. For example, when performing sequence reproduction, sequence information for specifying a voice message to be reproduced may be listed, and when performing stream reproduction, file names of music or moving images to be reproduced may be listed in the order of reproduction.

  The command determination unit determines whether the input information is sequence command information for specifying sequence information indicating a reproduction order of audio information constituting the audio message or stream command information for specifying audio information to be reproduced. .

  The command determination unit may determine the file format of sequence command information and stream command information.

  The command communication control unit transmits the sequence information corresponding to the sequence command information according to the sequence command transmission protocol, and when the command determination unit determines the stream command information, the voice information corresponding to the stream command information Are transmitted according to the stream command transmission protocol.

  The command communication control unit performs different communication control between the sequence command information and the stream command information.

  Therefore, according to the present invention, the audio playback device test system can perform audio playback using a playlist in which sequence command information and stream command information are mixed.

  (2) Further, in this audio reproduction device test system, the input information includes output timing control information of an audio reproduction command, and the command communication control unit outputs an audio reproduction command based on the output timing control information. The timing may be controlled.

  (3) Also, in this audio playback device test system, the output timing control information is specified in relation to the sequence command information, and the command communication control unit is either before or after the transmission of the sequence command information. The sequence information may be output by adding a delay time specified by the output timing control information.

  (4) Also, in this audio playback device test system, the output timing control information is specified in association with the stream command information, and the command communication control unit is either before or after transmission of the stream command information. The audio information may be output by adding a delay time specified by the output timing control information.

  (5) Further, in this audio reproduction device test system, the input information includes a sequence information file in which the sequence information is described, an audio information file in which the audio information is described, and a file name of the sequence information file. A playlist in which the file name of the audio information file is designated according to an audio playback order, and the command communication control unit, the command determination unit, the file name included in the playlist as the sequence information file When determined, the sequence information of the sequence information file is transmitted according to a sequence command transmission protocol. When the file name included in the playlist is determined as the audio information file, the audio information of the audio information file is streamed. Follow the protocol for command transmission It may be sent.

  (6) An integrated circuit device that functions as the audio playback device test system according to any one of the above.

  (7) An audio reproduction evaluation system including the audio reproduction device test system according to any one of the above and an audio reproduction device that performs audio reproduction based on the audio reproduction command.

  (8) The present invention provides a test method for testing an audio playback device that performs audio playback based on an audio playback command output from an audio playback device test system based on input information, wherein the input information is a voice message. Determining whether the command information is sequence command information that specifies sequence information indicating the playback order of the audio information to be configured, or stream command information that specifies audio information to be played back; When the sequence command information is determined, the sequence information corresponding to the sequence command information is transmitted according to the sequence command transmission protocol. When the stream command information is determined, the audio information corresponding to the stream command information is streamed. Follow the protocol for command transmission Transmitting a test method for sound reproduction device which comprises a.

The structural example of embodiment of an audio | voice reproduction apparatus test system. The system structural example of an audio | voice reproduction apparatus test system. The structural example of the information memorize | stored in the memory | storage part of this embodiment. FIG. 4A shows an example of a playlist. FIG. 4B shows an example of sequence information. The flowchart of an audio reproduction demo. The flowchart of a sequence reproduction process. Example of playlist modification.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The embodiments described below do not unduly limit the contents of the present invention described in the claims. Also, not all of the configurations described below are essential constituent requirements of the present invention.

1. Embodiment of Audio Playback Device FIG. 1 shows a configuration example of this embodiment. In the audio playback device test system 1, the input information 30 is either sequence command information 22 that specifies sequence information indicating the playback order of audio information that constitutes a voice message, or stream command information 24 that specifies audio information to be played back. When the command determining unit 10 and the command determining unit 10 for determining whether the input information 30 is the sequence command information 22, the sequence information corresponding to the sequence command information is transmitted according to the sequence command transmission protocol, When the stream command information 24 is determined, a command communication control unit 60 that transmits audio information corresponding to the stream command information in accordance with a stream command transmission protocol is included.

  Input information 30 is given from the playlist 20. The playlist 20 may include sequence command information 22, stream command information 24, and output timing control information 26.

  The audio information may be compressed in units of phrases and held as an audio file in units of phrases. For example, an audio data file in ADPCM format or AAC-LC format may be used.

  The sequence information may be a file in which setting information necessary for sequence reproduction is held.

  As stream command information, audio information to be reproduced may be specified by a file name.

  As sequence command information, audio information to be reproduced may be specified by a file name.

  FIG. 2 is a system configuration example of the audio playback device test system 1 of the present embodiment.

  The voice reproduction evaluation system 200 according to the present embodiment may include the evaluation board 500. The evaluation board 500 includes a sound reproduction IC mounting board 400 equipped with a sound reproduction IC (sound reproduction device) 80 and a sound reproduction IC test IC device mounting board 300 equipped with a sound reproduction IC test IC 110 as a host I / F connector or the like. You may comprise and connect via.

  The evaluation board 500 includes a clock, a power supply, an amplifier 90, and a host CPU interface necessary for the evaluation of the audio reproduction IC 80.

  The evaluation board 500 includes an SD card (or micro SD card) slot 130. The storage unit 70 stores a playlist 20, sequence information 40, and audio information 50. The storage unit 70 may be an SD card or a micro SD card.

  The audio reproduction evaluation system 200 of the present embodiment may include a play / stop button 11, a skip button 12, a volume up button 13, a volume down button 14, a reset button 15, and a speaker 100.

  The play / stop button 11 is a button for operating to play / stop the voice message. Each time the playback / stop button 11 is pressed, playback and stop function alternately.

  The skip button 12 is a button for operating fast-forwarding of a voice message.

  The volume up button 13 is a button for operating the volume up during audio reproduction.

  The volume down button 14 is a button for operating the volume down during audio reproduction.

  The reset button 15 is a button for controlling resetting of the audio reproduction IC test IC 110.

  In the present embodiment, the playlist 20 may include voice command output timing control information 26, and the command communication control unit 60 may control the timing of outputting a voice playback command based on the output timing control information 26.

  The output timing control information 26 is specified in relation to the sequence command information 22, and the command communication control unit 60 sets the delay time specified by the output timing control information 26 either before or after the transmission of the sequence command information 22. In addition, sequence information may be output.

  The output timing control information 26 is specified in relation to the stream command information 24, and the command communication control unit 60 sets the delay time specified by the output timing control information 26 either before or after transmission of the stream command information 24. In addition, the audio information 50 may be output.

  FIG. 3 is an example of a playlist, audio information specified by the playlist, and sequence information. A case where stream command information 001 to 004 and sequence command information 001 and 002 are listed in the playlist will be described.

  The stream command information 001 is information for specifying the audio information 001. The stream command information 002 is information for specifying the audio information 002. The stream command information 003 is information for specifying the audio information 003. The stream command information 004 is information for specifying the audio information 004. For example, the file name of audio information may be used.

  The sequence command information 001 is information for specifying the sequence information 001. The sequence command information 002 is information for specifying the sequence information 002. For example, as sequence command information, audio information to be reproduced may be specified by a file name.

  The voice information is voice data of phrases constituting a voice message. The sequence information is information related to the reproduction order of audio information, and audio information specifying information (f′1, f′2, f′3, f′4) associated with the audio information (f1, f2, f3, f4). ) May be arranged according to the playback order. For example, in the playlist, stream command information and sequence command information for reproducing two types of voice messages “room temperature is 20 degrees” and “room temperature is 21 degrees” are listed. A case where audio information and sequence information for reproducing the type are stored in the storage unit 70 will be described.

  f1 is audio information of “room temperature is”. f2 is audio information of “20 degrees”. f3 is audio data of “21 degrees”. f4 is voice information of “is”.

  The sequence information 001 is voice information specifying information (f′1, f′2, f′4) associated with voice data (f1, f2, f4) constituting the voice message “room temperature is 20 degrees”. Can be arranged according to the reproduction order. The sequence information 002 is voice data specifying information (f′1, f′3, f′4) associated with the voice data (f1, f3, f4) constituting the voice message “the room temperature is 21 degrees”. Can be arranged according to the reproduction order.

  When the sequence information 001 is input to the sound reproduction IC 80, the sound information “room temperature is” (f1) corresponding to f′1, the sound information “20 degrees” (f2) corresponding to f′2, and f′4. The corresponding voice data “Is” (f4) is played back in order to play back the voice message “The room temperature is 20 degrees”.

  Also, according to the sequence information 002, the audio information “in room temperature” (f1) corresponding to f′1, the audio information “21 degrees” (f3) corresponding to f′3, and the audio data corresponding to f′4. The voice message “The room temperature is 21 degrees” is reproduced by sequentially reproducing “I” (f4).

  In addition, in the audio reproduction evaluation system 200 of the present embodiment, the playlist 20 includes output timing control information 26 from reproduction of the given audio information 50 to output of the next audio reproduction command, and the command communication control unit 60 includes: An audio playback command may be output with the delay time specified by the output timing control information 26 added.

  The delay value specified by the output timing control information may be set before outputting each audio reproduction command or after outputting each audio reproduction command.

  According to the audio reproduction evaluation system 200 of the present embodiment, a delay value based on output timing control information can be set between sequence reproduction and stream reproduction.

  More specifically, examples of the playlist 20 are shown in FIGS.

  001. of FIG. eov is a file name of audio data corresponding to the audio information “room temperature is”. 002. eov is the file name of the audio data corresponding to the audio information “20 degrees”. 003. eov is a file name of the audio data corresponding to the audio information “21 degrees”. 004. eov is the file name of the audio data corresponding to the audio information “Da”.

  S_0001. seq, S_0002. seq, S_0003. seq is sequence command information.

  “$ 2.0” and “$ 1.0” are delay values specified by the output timing control information. Sequence command information S_0001. After the voice reproduction command output (sequence information 0001) by seq, the S_sequence command information 0002. A voice reproduction command by seq is output (sequence information 0002), and then S_sequence command information 0003. An audio playback command based on seq may be output (sequence information 0003).

  FIG. 4B is an example of sequence information. For example, audio information to be reproduced may be specified by a file number.

  FIG. 5 is a flowchart showing an example of sound reproduction when a sound reproduction demonstration is performed by the sound reproducing device test system 1 of the present embodiment.

  When the audio reproduction demonstration is started, the audio reproduction device test system 1 acquires one file from the playlist (step S100), and determines the type of the acquired file (step S102). For example, the file type may be determined by a file format. If the determination result is stream command information, stream reproduction configuration information is transmitted (step S104). If the determination result is sequence command information, sequence reproduction configuration information is transmitted (step S106).

  The stream reproduction configuration information is setting information necessary for stream reproduction. The sequence reproduction configuration information is setting information necessary for sequence reproduction.

  Next, it is determined whether the play / stop button 11 has been pressed (step S108). When the play / stop button 11 is pressed, it is determined whether or not the sound is being reproduced (step S110). If the audio is being reproduced, it is determined whether the reproduction is a stream (step S112). If it is stream playback, stream playback stop information is transmitted (step S114). When it is not stream reproduction, that is, when it is sequence reproduction, sequence reproduction stop information is transmitted (step S116).

  If the play / stop button 11 has not been pressed (step S108), it is determined whether audio playback is in progress (step S109). If the audio is not being played back (step S109), the process returns to the process of determining whether the play / stop button 11 has been pressed. When the sound is being reproduced (step S109), and when the play / stop button 11 is pressed (step S108) and the sound is not being reproduced (step S110), it is determined whether the sound reproduction to be performed is a stream reproduction. (Step S118).

  If it is stream playback, stream playback is performed (step S120). If it is not stream playback, sequence playback processing is performed (step S122).

  Next, it is determined whether or not the file has been reproduced to the end (step S124). If the file has not been reproduced to the end, the file is being reproduced. When playback is completed, stream playback stop information is transmitted (step S114). When stream playback is stopped, sequence playback stop information is transmitted (step S116). When sequence playback is stopped, the delay value of the playlist is used. (Step S126).

  Next, it is determined whether all the files in the playlist have been reproduced (step S128). If all the files have been reproduced, the audio reproduction demonstration is terminated. If all the files have not been played, the above flow is repeated.

  FIG. 6 is a detailed flowchart of the sequence reproduction process (step S122) of FIG. The sequence reproduction process may be performed based on a function for transmitting a message related to decoding at the time of sequence reproduction.

  In the sequence reproduction process, it is determined whether or not the file reproduction is the first time (step S130). If the file reproduction is not the first time, the sequence reproduction start information is transmitted (step S134). It is determined whether it has been received (step S132).

  When the file reproduction end information is received, the file reproduction end reception flag is turned ON (step S136).

  If the file playback end reception flag is ON (step S138), sequence playback stop information is transmitted (step S140), and the sequence playback process ends. That is, the reproduction of one file ends. If the file playback end reception flag is not ON (step S138), the sequence playback process ends.

  FIGS. 7A and 7B are examples of playlist correction.

  FIG. 7A shows the voice messages “room temperature is 20 degrees”, “room temperature is 21 degrees” and “room temperature is 22 degrees” stored in the ROM data, corresponding to each message. As sequence information to be transmitted, S_0001. seq, S_0002. seq, S_0003. This is an example when seq is described in the playlist.

  In the case of the playlist shown in FIG. 7A, for example, FIG. 7B shows audio information of “room temperature is 20.5 degrees” and “room temperature is 21.5 degrees”. It is an example of the play list after correction when it becomes necessary to add.

  "20.5 degrees" audio information PS_0001. eov and voice information PS_0002. Eov is newly added to the storage unit 70, and the audio information “room temperature is” and “is” can be reproduced by using the audio information built in the ROM data and changing the sequence information.

  In addition, this invention is not limited to this Embodiment, A various deformation | transformation implementation is possible within the range of the summary of this invention.

  The present invention includes configurations that are substantially the same as the configurations described in the embodiments (for example, configurations that have the same functions, methods, and results, or configurations that have the same objects and effects). In addition, the invention includes a configuration in which a non-essential part of the configuration described in the embodiment is replaced. In addition, the present invention includes a configuration that exhibits the same operational effects as the configuration described in the embodiment or a configuration that can achieve the same object. Further, the invention includes a configuration in which a known technique is added to the configuration described in the embodiment.

1 voice playback device test system, 10 command determination unit,
11 Play / Stop button, 12 Skip button, 13 Volume up button,
14 Volume down button, 15 Reset button, 20 Playlist,
22 sequence command information, 24 stream command information,
26 output timing control information, 30 input information, 40 sequence information,
50 voice information,
60 command communication control unit, 70 storage unit, 80 voice reproduction IC,
90 amplifier, 100 speaker, 130 micro SD card slot,
200 sound reproduction evaluation system, 300 sound reproduction device test IC board,
400 voice playback IC board, 500 evaluation board

Claims (8)

In an audio playback device test system for outputting an audio playback command to be input to an audio playback device based on input information,
A command determination unit for determining whether the input information is sequence command information for specifying sequence information indicating a reproduction order of audio information constituting the audio message or stream command information for specifying audio information to be reproduced;
When the command determination unit determines that the input information is the sequence command information, the command determination unit transmits sequence information corresponding to the sequence command information according to a sequence command transmission protocol, and when the input information is determined as the stream command information, A command communication control unit for transmitting audio information corresponding to the stream command information according to a stream command transmission protocol;
An audio playback device test system comprising: In claim 1,
The input information is
Includes output timing control information for voice playback commands,
The command communication control unit
A voice playback device test system, wherein a timing for outputting a voice playback command is controlled based on the output timing control information. In claim 2,
The output timing control information is
Specified in connection with the sequence command information,
The command communication control unit
An audio playback device test system, wherein the sequence information is output by adding a delay time specified by the output timing control information before or after transmission of the sequence command information. In claim 2 or 3,
The output timing control information is
Specified in connection with the stream command information,
The command communication control unit
An audio playback device test system, wherein the audio information is output by adding a delay time specified by the output timing control information before or after transmission of the stream command information. In any one of Claims 1 thru | or 4,
The input information is
A sequence information file in which the sequence information is described;
A voice information file in which the voice information is described;
A playlist in which the file name of the sequence information file and the file name of the audio information file are designated according to the audio playback order;
Including
The command communication control unit
When the command determination unit determines that the file name included in the playlist is the sequence information file, the sequence information of the sequence information file is transmitted according to a sequence command transmission protocol, and the file name included in the playlist Is determined to be the audio information file, the audio information of the audio information file is transmitted in accordance with a stream command transmission protocol.   6. An integrated circuit device which functions as the sound reproduction device test system according to claim 1. An audio playback device test system according to any one of claims 1 to 5;
An audio reproduction device for performing audio reproduction based on the audio reproduction command;
Voice playback evaluation system including A test method for testing an audio playback device that performs audio playback based on an audio playback command output by an audio playback device test system based on input information,
Determining whether the input information is sequence command information for specifying sequence information indicating a reproduction order of audio information constituting the audio message or stream command information for specifying audio information to be reproduced;
When the command determination unit determines that the input information is the sequence command information, it transmits sequence information corresponding to the sequence command information according to a sequence command transmission protocol, and when the input information is determined as the stream command information, Transmitting audio information corresponding to the stream command information in accordance with a stream command transmission protocol;
A test method for an audio playback device, comprising:

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