JP2010186028A - Command transmission control device, integrated circuit device, sound reproduction evaluation system, and testing method of sound reproduction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a command transmission control device for transmitting a command to a sound reproduction device at optional timing, and to provide an integrated circuit device, a sound reproduction evaluation system and a testing method of the sound reproduction device. <P>SOLUTION: A command transmission control device 20 for transmitting and controlling a sound reproduction command which transmits plurality of notes created based on at least one of a sound data, a musical note data and a frequency data, which are reproduced and superimposed at the same time, to a sound reproduction device 70, includes: a command transmission timing determination section 30 for determining transmission timing of a command to be transmitted, based on information for indicating a transmitting order of the command to be transmitted to the sound reproduction device 70, and command transmission timing indication information for indicating transmission timing of at least one command to be transmitted; and a command transmission control section 40 for controlling transmission for transmitting it to the sound reproduction device at the transmission timing when the command to be transmitted is determined. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  Some embodiments of the present invention relate to a command transmission control device, an integrated circuit device, a sound reproduction evaluation system, a sound reproduction device test method, and the like.

  2. Description of the Related Art There is known an electronic device that includes a host processor and an audio IC, and an audio playback system that outputs a message by voice in conjunction with the host processor and the audio IC.

JP 2005-285309 A

  Recently, a voice playback system capable of mixing playback that plays back a voice message and a background melody has been developed. For example, first, a background melody is reproduced, a voice message is reproduced at a timing delayed by a predetermined time from the background melody start timing, and the background melody and the voice message are mixed and output.

  In such an audio reproduction system, when evaluating audio reproduction, a file called a playlist in which the reproduction order of audio files and audio reproduction commands is described is read, and the playlist is described in the audio reproduction device. The sound reproduction evaluation of the sound reproduction device can be performed by reproducing the sound file and executing the sound reproduction command in accordance with the order in which the sound is reproduced.

  However, since it is difficult to perform a test for transmitting a command to a sound reproduction device at an arbitrary timing, it is difficult to perform an evaluation of command transmission / reception timing, an asynchronous mixing test with shifted transmission timing, and a sound evaluation.

  The present invention has been made in view of the above problems. According to some aspects of the present invention, a command transmission control device, an integrated circuit device, a sound reproduction evaluation system, and a sound reproduction device testing method capable of transmitting a command to a sound reproduction device at an arbitrary timing Can be provided.

(1) The present invention
A command for controlling transmission of a sound reproduction command that is transmitted to a sound reproduction apparatus capable of reproducing a plurality of sounds generated based on at least one of sound data, note data, and frequency data in the same time period. A transmission control device comprising:
Command transmission timing determination unit for determining the transmission timing of the transmission target command based on the information for specifying the transmission order of the transmission target command to the sound reproduction device and the command transmission timing specification information for specifying the transmission timing of at least one transmission target command When,
A command transmission control unit that performs transmission control to transmit the command to be transmitted to the sound reproducing device at the determined transmission timing;
It is characterized by including.

  Here, the transmission timing may be a transmission timing of a command to the sound reproduction device, or may be a timing to read a command from the storage unit in order to transmit a command to the sound reproduction device.

  The command transmission timing determination unit may determine the transmission order of each command.

According to the present invention, it is possible to set the transmission timing of the command to the sound reproduction device with the content specified by the command transmission timing specification information. Therefore, it is possible to evaluate the sound to be transmitted by transmitting the command to the sound reproducing device at an arbitrary timing. For example, when reproducing a melody and a voice message in a superimposed manner, it is possible to perform a test for evaluating the reproduction of sound by arbitrarily shifting the transmission timing.
(2) This command transmission control device
The command transmission timing designation information includes delay information,
The command transmission timing determination unit
A timing delayed from the predetermined delay count start timing by the delay time indicated by the delay information may be determined as the command transmission timing.

The command transmission control unit starts counting the delay time from a predetermined timing, determines that the transmission timing is determined when the delay time is reached, reads out the transmission target command from the storage unit, and reproduces the sound You may make it perform transmission control which transmits to.
(3) This command transmission control device
The delay information is specified as a relative time from a given transmission target command to the next transmission target command,
The command transmission timing determination unit
The timing before the given command transmission or at the given command transmission time may be determined as a predetermined delay count start timing, and a timing delayed by a relative time from the delay count start timing may be determined as the transmission timing of the next transmission target command.

In this way, it is possible to set the delay time in relation to the command to be reproduced next and evaluate the reproduced sound. Therefore, the timing of command transmission / reception can be evaluated.
(4) This command transmission control device
The command transmission timing designation information includes overwrite reproduction presence / absence information that designates whether or not to reproduce the sound of the next command after finishing the sound being reproduced corresponding to the previous command,
The command transmission timing determination unit
When overwrite playback is specified as the overwrite playback presence / absence information, the transmission timing of the next command is determined regardless of whether or not playback of the sound corresponding to the previous command has ended, and no overwrite playback is specified. If so, the transmission timing of the next command may be determined so that the transmission timing of the next command comes after the end of the reproduction of the sound corresponding to the previous command.
(5) This command transmission control device
The command transmission timing determination unit
When delay information and overwrite reproduction presence / absence information indicating presence / absence of overwrite reproduction are specified as the command transmission timing designation information, a predetermined delay set regardless of whether or not sound reproduction corresponding to the previous command is terminated The transmission timing of the next command may be determined by counting the delay time from the count start timing.

When overwrite playback is specified, the delay time starts counting from a predetermined timing that can be counted without being influenced by the end of command transmission or the presence or absence of an acknowledge for command transmission. (6) This command transmission control device performs control to transmit a command.
The command transmission timing determination unit
When the command transmission timing designation information includes delay information and overwrite reproduction presence / absence information indicating no overwrite reproduction, from the predetermined delay count start timing set after the reproduction of the sound corresponding to the previous command is completed. The transmission time of the next command may be determined by counting the delay time.
(7) An integrated circuit device that functions as the command transmission control device according to any one of the above.
(8) the command transmission control device according to any one of the above,
A command transmitted from the command transmission control device connected to the command transmission control device and a plurality of sounds generated based on at least one of sound data, note data, and frequency data are reproduced in the same time zone. A sound reproduction evaluation system including a possible sound reproduction device.
(9) The present invention
A test method for testing a sound reproduction device capable of reproducing a plurality of sounds generated based on at least one of sound data, note data, and frequency data in the same time period,
Determining the transmission timing of the transmission target command based on the information specifying the transmission order of the transmission target command to the sound reproduction device and the command transmission timing specification information specifying the transmission timing of at least one transmission target command;
Performing transmission control for transmitting the transmission target command to the sound reproduction device at the determined transmission timing;
It is characterized by including.

Functional block diagram of this embodiment System configuration example of sound reproduction evaluation system of this embodiment The figure for demonstrating the sound reproduction apparatus of this Embodiment The figure for demonstrating the message (an example of command) file of this Embodiment. The figure for demonstrating the message (an example of command) file of this Embodiment. It is a figure for demonstrating the play list of this Embodiment. The figure for demonstrating the other example of the information regarding the reproduction | regeneration order of the command of this Embodiment. FIGS. 8A to 8G are diagrams for explaining an example of a relationship between play list designation and command (message) transmission control. The figure for demonstrating the example of description about the relationship between the designation | designated of a play list, and transmission control of a command (message).

  Embodiments to which the present invention is applied will be described below with reference to the drawings. However, the present invention is not limited to the following embodiments. Moreover, this invention shall include what combined the following content freely.

  FIG. 1 is a functional block diagram of this embodiment.

  The sound reproduction evaluation system 10 of this embodiment includes a command transmission control device 20 and a sound reproduction device 70.

  The sound reproducing device 70 is connected to the command transmission control device 20, and a plurality of sounds generated based on the command 42 transmitted from the command transmission control device 20 and at least one of sound data, note data, and frequency data. Can be played back at the same time.

  The command transmission control device 20 according to the present embodiment performs transmission control of the sound reproduction command 42 transmitted to the sound reproduction device 70, and designates the transmission order of the transmission target commands to the sound reproduction device 70. Based on the command transmission order designation information 52 and the command transmission timing designation information 54 for designating the transmission timing of at least one transmission target command, the command transmission timing determination unit 30 for determining the transmission timing of the transmission target command, and the transmission target command And a command transmission control unit 40 that performs transmission control for transmission to the sound reproduction device at the determined transmission timing. Command transmission order designation information 52 and command transmission timing designation information 54 are stored in a storage unit 50 (which may be an external storage medium).

  Here, the command includes a request message for controlling the sound reproducing device 70 and is an instruction for causing the sound reproducing device 70 to reproduce a sound, a melody, or a tone. The command may be a request message in a message file describing a message protocol, for example.

  The sound data is a sound data file reproduced by the sound reproducing device 70, and may be a compressed sound file. The sound data may be, for example, a recorded sound data file or a sound data file created by a TTS (Text-to-Speech) system.

  The note data is data for generating a desired sound by a synthesizer or the like included in the sound reproducing device 70. For example, information about the scale and time may be included. Further, it may be a command format data file including data for generating a desired sound.

  The frequency data is data for generating a sound with a desired frequency by a synthesizer or the like included in the sound reproducing device 70. For example, information about frequency and time may be included. Further, it may be a command format data file including data for generating a sound of a desired frequency.

  The sound reproduction device 70 may have, for example, a mixing reproduction function or the like, and may reproduce a plurality of sounds by overlapping them in the same time zone. In addition, a sound may be generated based on note data by installing a synthesizer function.

  The command transmission order designation information 52 may be realized by a playlist to be described later, for example.

  The command transmission timing designation information 54 may be information on a delay value for determining command transmission timing, for example.

  The command transmission timing designation information 54 may include delay information, and the command transmission timing determination unit 30 may determine a timing delayed by a delay time indicated by the delay information from a predetermined delay count start timing as the command transmission timing.

  The command transmission control unit 40 starts counting the delay time from a predetermined timing, determines that the command transmission timing is determined when the delay time is reached, and transmits the command to be transmitted to the sound reproduction device 70. Control may be performed.

Here, the delay information is expressed as a relative time (time from command transmission reproduced at the nth time to command transmission reproduced at the (n + 1) th time) from the transmission of the next transmission target command to a given transmission target command. May be specified. The command transmission timing determining unit 30 transmits the next transmission target command using a timing delayed by a relative time from the delay count start timing, with a predetermined delay count start timing as a predetermined delay count start timing or before a given command transmission. The timing may be determined. The relative time may be the time from the nth command scheduled to be transmitted to the (n + 1) th command scheduled to be transmitted. For example, the delay time is associated with the nth command to be reproduced and the (n + 1) th command is transmitted. You may specify as time to timing. The command may be transmitted at a predetermined timing before the transmission of the nth command to be transmitted or at a timing delayed by a delay time from the time of transmission of the nth command.

  The command transmission timing determination unit 30 may determine the delay count start timing without considering the end of reproduction of the transmitted command in the sound reproduction apparatus and the presence or absence of an acknowledgment for the command transmission.

  The command transmission timing designation information may include overwrite reproduction presence / absence information that designates whether or not to reproduce the sound of the next command after the end of the sound being reproduced corresponding to the previous command.

  The command transmission timing determination unit 30 determines the transmission timing of the next command regardless of whether or not the reproduction of the sound corresponding to the previous command is terminated when the overwrite reproduction is specified as the overwrite reproduction presence / absence information. If no overwrite reproduction is specified, the transmission timing of the next command may be determined so that the transmission timing of the next command comes after the end of the reproduction of the sound corresponding to the previous command.

  The command transmission timing determining unit 30 determines whether or not the reproduction of the sound corresponding to the previous command has ended when the delay information and the overwrite reproduction presence / absence information indicating the presence of overwrite reproduction are specified as the command transmission timing designation information. Alternatively, the transmission time of the next command may be determined by counting the delay time from a predetermined delay count start timing set independently.

  When overwrite playback is specified, the delay time starts counting from a predetermined timing that can be counted without being influenced by the end of command transmission or the presence or absence of an acknowledge for command transmission. You may perform control which transmits a command.

  The command transmission timing determination unit 30 sets after completion of the reproduction of the sound corresponding to the previous command when the delay information and the overwrite reproduction presence / absence information indicating no overwrite reproduction are specified as the command transmission timing designation information. The transmission time of the next command may be determined by counting the delay time from the predetermined delay count start timing.

  The command transmission control device 20 can be realized as an integrated circuit device.

  FIG. 2 shows a system configuration example of the sound reproduction evaluation system 10 of the present embodiment.

  The sound reproduction evaluation system 10 according to the present embodiment may include the evaluation board 100. The evaluation board 100 includes a sound IC mounting evaluation board 120 on which a sound playback IC (sound playback device) 70 is mounted and a command transmission control IC mounting board 110 on which a command transmission control IC (command transmission control device) 20 is mounted. You may comprise and connect via F connector etc.

  The evaluation board 100 includes a clock, a power supply, a switch 114, an amplifier 124, and a host CPU interface necessary for evaluating the sound reproduction IC 70.

  The evaluation board 100 includes a slot 116 for an SD card (or a micro SD card). The SD card 130 stores a playlist 140 and a message file 150.

  The playlist 140 is a file describing the order of message files, and functions as command transmission order designation information and command transmission timing designation information. The playlist 140 may be prepared as a text file in which the name of a message file (an example of a command file) that stores a message to be transmitted (an example of a command) is described according to the transmission order. The message file 150 is a file in which a message protocol (actual state of a command to be transmitted) is described, and is a file in which a request message (an example of a command) for controlling the sound reproduction IC (sound reproduction device) 70 is described. It may be defined as a C source (* .c) format file.

  The SD card 130 may store a setting file (not shown). The setting file is an operation setting file for a melody / audio reproduction demonstration. Set the initial volume value and repeat ON / OFF. Further, by setting the sampling frequency and the quantization bit, the parameters of the D / A converter with built-in sound reproduction IC (sound reproduction device) 70 can be controlled.

  This embodiment has a melody / voice reproduction function by message protocol control.

  The command transmission control IC 20 on the command transmission control IC mounting board 110 reads the message file 150 in which the message protocol is described from the SD card 130 inserted into the evaluation board 100, and a request message (an example of a command) in the message file is Melody / sound can be reproduced by transmitting to the sound reproduction IC (sound reproduction device) 70 on the sound IC mounting evaluation board 120 via serial communication (I2C).

  A filed message (hereinafter referred to as a message file) is described in a C array data format, and a plurality of messages can be described.

  Melody / sound playback / stop, skip, and volume change control can be performed by the switch 114 of the command transmission control IC mounting board 110.

  Two types of melody / voice playback functions may be prepared: a normal mode and an evaluation mode for internal evaluation. In normal mode, it operates as follows.

  A plurality of message files, a playlist file, and a setting file (not shown) are stored in the SD card 130 (step S10). Next, the SD card is inserted into the command transmission control IC mounted board 120, and the switch 114 on the command transmission control IC mounted board 120 is pressed (step S20).

  The command transmission control IC (command transmission control device) 20 reads the playlist 140 in the SD card 130, and reads the message files in the order described in the playlist 140 (step S30).

  A plurality of messages are described in the message file 150, and the plurality of messages are sequentially transmitted to the sound reproduction IC 70 (step S40).

  After completing the transmission of all the messages in the message file, the next message file is read (step S50). However, in the normal mode, when the sound reproduction IC (sound reproduction device) 70 is reproducing, the next message file is read after the reproduction is completed.

  When all the messages in the last message file have been transmitted and the reproduction of the melody / voice has been completed, the operation of the evaluation board is completed (step S60).

  In the evaluation mode for internal evaluation, it is possible to specify a delay value (an example of command transmission timing designation information) and overwrite reproduction ON / OFF (an example of overwrite reproduction presence / absence information) in the playlist. When the delay value or overwrite reproduction ON / OFF is designated, the transmission timing of the command to be transmitted to the sound reproduction device is determined based on these pieces of information, and control is performed to transmit the command according to the determined transmission timing.

  If overwrite reproduction is OFF, the next message file is read after transmission of all messages in the corresponding message file is completed. However, when the sound reproduction IC (sound reproduction device) 70 is reproducing, the next message file is read after the reproduction is completed.

  In addition, when overwrite playback is ON, when the delay value is reached, regardless of whether all message transmission in the corresponding message file is completed or whether the previous message is being played back by the sound playback device, Read the message file and send the first message of the next message file.

  FIG. 3 is a diagram for explaining the sound reproducing device 70 of the present embodiment. The sound reproducing device 70 of this embodiment is connected to the host processor 290 and the command transmission control device 20 of this embodiment, and based on commands from the host processor 290 and the command transmission control device 20, sound data, note data, and frequency A plurality of sounds generated based on at least one of the data can be reproduced in the same time period.

  The sound playback device 70 includes three types of playback modules: a main module (SEQUENCER_MAIN) 220, a multi-module (SEQUENCER_MULTI) 230, and a melody module (MELODY or BUZZER_TONE) 240. Each module can play and stop sounds independently. The sound reproduced by each module can be mixed and output by mixing. For example, a voice message may be generated based on sound data in the channel of the main module 220, a melody may be generated based on the sound data in the channel of the multi-module 230, and a note data may be generated in the channel of the melody module 240. A melody may be generated by a synthesizer, or a tone may be generated based on frequency data.

  4 and 5 are diagrams for explaining a message (an example of command) file according to the present embodiment.

 The message file (an example of a command file) is a file in which a message according to the message protocol of the sound reproduction device is described, and a plurality of request messages (ISC _ * _ REQ) 360, 370, 380 for controlling the sound reproduction device. Is described. When the SD card in which this file is written is inserted into the evaluation board and a switch on the evaluation board is pressed, voice and melody mixing reproduction can be performed according to the contents of the message file.

  Reference numerals 360, 370, and 380 in FIG. 4 indicate request messages to the melody module (a channel that causes the synthesizer to generate sound based on the note data).

  The request message in the message file may be described with a start command of “0x00 0xAA” as indicated by 350.

  FIG. 6 is a diagram for explaining the playlist of the present embodiment.

  A playlist file (playlist.txt) describes the order of message files. The message file in the SD card is read out in the description order of the playlist file, and the request message (ISC _ * _ REQ) in the message file is transmitted to the sound reproducing device to reproduce the melody or voice.

  The command transmission timing designation information (here, the delay value) 320 may be designated along with the information 310 that designates the command transmission order. For example, the delay value 320 may be described in the play list together with the command file (here, the message file) name 310.

  The command transmission timing designation information 320 may be individually designated for each command file 310.

  The command file (here, message file) may include a plurality of commands (here, messages) as shown in FIGS. For example, when a plurality of commands or a plurality of requests (setting request (360 in FIG. 4), set request (370 in FIG. 4), or start request (380 in FIG. 4)) for reproducing a given message is required. May store these commands and request messages in one command file. When one command file includes a plurality of commands and request messages, the transmission timing of the first command or request message may be determined.

  In this embodiment, not only synchronous mixing reproduction but also asynchronous mixing reproduction testing and demonstration are possible. Subsequent to the message file name 310 described in the playlist file, a delay value 320 (an example of delay information which is one of command transmission timing designation information) or an overwrite reproduction ON / OFF 330 (the command transmission timing) as an option designation. By designating one example of the designation information (overwrite reproduction presence / absence information), asynchronous mixing reproduction is possible.

  The delay value can be specified in association with the messages 310 and 312 as indicated by 310 and 312. For example, a numerical value may be designated together with a predetermined symbol (here, $) after the messages 310 and 312.

  As the delay value, the time until the next message file is read or the time until the next message file is sent is set. The time from when the last message of the current message file is sent to when the first message of the next message file is sent becomes the delay value.

The delay value may be set after the "$" symbol in association with the message file name. The delay value setting can be omitted, and if it is omitted, the delay value in the setting file may be selected. Overwrite playback is to stop the melody / sound that is being played, and to play a new melody / sound. It refers to playing.

  In the sound playback device of this embodiment, the main module (SEQUENCER_MAIN), multi-module (SEQUENCER_MULTI), and melody module (MELODY or BUZZER_TONE) can be played and stopped independently. It works independently.

  If "&" is written after the message file name, overwrite playback is turned on. If "&" is not written, it is turned off. Overwrite playback ON / OFF can be specified in association with messages 310 and 312 as indicated by 330 and 332. For example, if "&" is specified in association with the message file name as indicated by 330, overwrite reproduction is ON, and if nothing is specified as indicated by 332, overwrite reproduction is OFF.

  When "&" is described, the next time regardless of whether or not the sound reproduction corresponding to the previous message in the sound reproduction device has ended (this may be determined based on the state of the predetermined signal (sound_play signal)) Read the message file and start sending messages in that file.

  The delay value with an “&” symbol shown in 320 is the transmission of the first message of the next message file 310 (here, melody1.c) from before the last message transmission of the corresponding message file 310 (here, config1.c). It will be time until.

  If the “&” symbol shown in 330 is present, transmission of the first message of the next message file 310 (here, melody1.c) is started at a timing irrespective of whether or not the previous command has been reproduced.

  The delay value without the “&” symbol shown in 322 is from the end of playback of the corresponding message file 310 (here, config1.c) to the transmission of the first message in the next message file 313 (here, config2.c). It will be time.

  If there is no “&” symbol shown in 332, the reproduction of the message 312 (here main5.c) is terminated and transmission of the first message of the next message 313 (here config2.c) is started.

  FIGS. 8A to 8G and FIG. 9 are diagrams for explaining an example of the relationship between play list designation and command (message) transmission control.

  8A is an example of a playlist, FIG. 8B is a message 430 described in the command file 410 specified first in the playlist, and FIG. , A message group 440 to 444 described in the command file 411 specified second in the playlist, and FIG. 8D is described in the command file 412 specified third in the playlist. Message groups 450 to 452. FIG. 8E shows a message 460 described in the command file 413 designated fourth in the playlist, and FIG. 8F shows a command file designated fifth in the playlist. FIG. 8G shows a message group 480 to 482 described in the command file 415 specified sixth in the playlist.

  First, the command (configuration request message) 430 described in the command file 410 described first in the playlist is transmitted at the timing t0 in FIG. Since overwrite reproduction ON (refer to 430) is designated in the command file 410, the first message 440 of the second command file 411 is determined at a predetermined timing regardless of whether or not the reproduction corresponding to the command of the command file 410 is completed. Start sending. Since a delay value of 0 (see 420) is specified in the command file 410, the last message of the command file 410 (here, since the first command file 410 has only one message 430, this message) before transmission To the first message 440 transmission of the second command file 411 is zero. Therefore, both the last message of the first command file 410 and the first message 440 of the second command file 411 are transmitted at the timing shown in FIG. Thereafter, other messages 442 and 442 of the second command file 411 are sequentially transmitted, and the melody 1 is repeatedly reproduced in the sound reproducing apparatus (see 500).

  Since overwrite playback ON (see 431) is specified for the second command file 411, the third command file is set at a predetermined timing regardless of whether or not the playback corresponding to the command of the second command file 411 has ended. The transmission of the 412 first message 450 is started. Since the delay value 1.0 (refer to 420) is specified in the second command file 411, the last message of the second command file 411 (here, the third message 444 of the command file 2) is transmitted before transmission. The time until the first message 450 of the command file 412 is transmitted is 1.0. Accordingly, the first message 450 of the third command file 412 is transmitted at a timing (see d1) t1 delayed by a delay value 1.0 from the last message 444 of the second command file 411. Thereafter, other messages 452 of the command file 412 are sequentially transmitted, and the message “The bath is about to boil” is reproduced in the sound reproducing apparatus (see 510). At this time, the melody 1 is reproduced and output in the melody module (refer to 500), and this melody and the voice message “I will soon take a bath” (refer to 510) are mixed and output.

  Since the overwrite reproduction OFF (see 432) is designated in the third command file 412, the end of reproduction (t2) corresponding to the command in the third command file 412 is counted and the delay value d2 is counted to 4 The transmission of the first message 460 of the th command file 413 is started. Since the delay value 3.0 (see 422) is specified in the third command file 412, the fourth command file from the time (t2) when the reproduction of the sound 510 corresponding to the third command file 412 is completed. The time d2 until the first message 460 transmission (t3) of 413 is 3.0.

  Accordingly, the first message 460 of the fourth command file 413 is transmitted at a timing (see d2) t3 that is delayed by a delay value 3.0 from the end of the reproduction of the sound 510 corresponding to the third command file 412 (t2). Is done.

  Since the delay value 0 (see 423) is specified in the fourth command file 413, this message is the last message of the fourth command file 413 (here, the command file 413 has only one message 460). ) Time until transmission of the first message 470 of the fifth command file 414 from before transmission is zero. Therefore, the last message 460 of the fourth command file 413 and the first message 470 of the fifth command file 414 are both transmitted at the timing t3. Thereafter, other messages 472 and 474 of the fifth command file 414 are sequentially transmitted, and the melody 2 is generated and repeatedly reproduced in the melody module of the sound reproducing device (see 520).

  Since overwrite reproduction ON (see 434) is specified for the fifth command file 414, the sixth command file at a predetermined timing regardless of whether or not the reproduction corresponding to the command of the fifth command file 414 has ended. The transmission of the first message 480 at 415 begins. Since the delay value 1.0 (see 424) is specified in the fifth command file 414, the last message of the fifth command file 414 (here, the third message 474 of the command file 414) is 6 from before transmission. The time until the first message 480 of the first command file 415 is transmitted is 1.0. Therefore, the first message 480 of the sixth command file 415 is transmitted at a timing (see d3) t4 delayed by a delay value 1.0 from the last message 474 of the fifth command file 414. Thereafter, another message 482 of the sixth command file 415 is sequentially transmitted, and a message “The bath has boiled” is generated and output in the main module of the sound reproducing device (see 530). At this time, the melody 2 is reproduced and output in the melody module, and this melody and the voice message “The bath is heated” are mixed and output.

  FIG. 7 is a diagram for explaining another example of the information related to the command playback order according to the present embodiment.

  In FIG. 6, an example of a playlist is shown as an example of information related to the command playback order according to the present embodiment. For example, an index file may be used. In the index file, an index for designating a command stored in the audio ROM data is described.

  This index can be specified to perform synchronous mixing. When the index file in the SD card is read, the index in the read file is sent to the sound playback device, and playback of the melody / sound starts. Until the playback ends (until the sound_play signal becomes L), the next message file Is not read (overwrite playback is not possible).

When an index is specified and synchronous mixing is performed, 410 is an index string to be mixed and played back, and commands in the audio ROM data are specified via the SET_PLAY signal in this order. Then, the 0th command, the 1st command, and the 2nd command are executed in this order, and the reproduction of the melody and the sound is started according to each command. If each command is a command that controls separate playback modules of the main module (SEQUNECER_MAIN), multi-module (SEQUENCER_MULTI), and melody module (MELODY or BUZZ_TONE), a slight time lag will occur, but playback will occur almost simultaneously. (Mixing playback).
When playback by the command “0, 1, 2” is completed, commands are specified in the order of the next index string “3, 5”, and playback is started in response to the command “3, 5”.

  Here, not only synchronous mixing reproduction but also asynchronous mixing reproduction and overwrite reproduction are possible.

  As shown in FIG. 7, asynchronous mixing reproduction can be supported by setting a delay value and setting ON / OFF of overwriting reproduction for each message file.

To set the delay value, describe the value after the "$" symbol after the message file name.
The overwrite playback ON / OFF setting is turned ON when "&" is written after the message file name, and is turned OFF when "&" is not written.

  The description of the delay value setting can be omitted. If omitted, the delay value in the setting file is selected.

  Reference numeral 420 denotes a delay value until mixing reproduction by the next index string 412 is started. Reference numeral 430 is a symbol for overwriting reproduction, and “&” is described when overwriting reproduction of mixing reproduction of the next index string. It is not described when overwriting is not performed.

  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.

DESCRIPTION OF SYMBOLS 1 Sound reproduction evaluation system, 20 Command transmission control apparatus, 30 Command transmission timing determination part, 40 Command transmission control part, 50 Storage part, 52 Command transmission order designation information, 54 Command transmission timing designation information, 70 Sound generation apparatus (Sound generation IC), 100 evaluation board, 110 command transmission control IC board, 120 sound generation IC board, 114 switch, 116 SD card slot, 130 SD card, 140 playlist, 150 message file, 124 amplifier, 126 speaker, 320 command Transmission timing designation information (delay information), 330 command transmission timing designation information (overwrite playback presence / absence information)

Claims (9)

A command for controlling transmission of a sound reproduction command that is transmitted to a sound reproduction apparatus capable of reproducing a plurality of sounds generated based on at least one of sound data, note data, and frequency data in the same time period. A transmission control device comprising:
Command transmission timing determination unit for determining the transmission timing of the transmission target command based on the information for specifying the transmission order of the transmission target command to the sound reproduction device and the command transmission timing specification information for specifying the transmission timing of at least one transmission target command When,
A command transmission control unit that performs transmission control to transmit the command to be transmitted to the sound reproducing device at the determined transmission timing;
A command transmission control device comprising: In claim 1,
The command transmission timing designation information includes delay information,
The command transmission timing determination unit
A command transmission control apparatus, characterized in that a timing delayed by a delay time indicated by delay information from a predetermined delay count start timing is determined as a command transmission timing. In claim 2,
The delay information is specified as a relative time from a given transmission target command to the next transmission target command,
The command transmission timing determination unit
It is characterized in that a timing delayed by a relative time from a delay count start timing is determined as a transmission timing of a next transmission target command, with a predetermined delay count start timing as a predetermined delay count start timing before or at a given command transmission Command transmission control device. In any one of Claims 1 thru | or 3,
The command transmission timing designation information includes overwrite reproduction presence / absence information that designates whether or not to reproduce the sound of the next command after finishing the sound being reproduced corresponding to the previous command,
The command transmission timing determination unit
When overwrite playback is specified as the overwrite playback presence / absence information, the transmission timing of the next command is determined regardless of whether or not playback of the sound corresponding to the previous command has ended, and no overwrite playback is specified. If so, the command transmission control device determines the transmission timing of the next command so that the transmission timing of the next command comes after the end of the reproduction of the sound corresponding to the previous command. In claim 4,
The command transmission timing determination unit
When delay information and overwrite reproduction presence / absence information indicating presence / absence of overwrite reproduction are specified as the command transmission timing designation information, a predetermined delay set regardless of whether or not sound reproduction corresponding to the previous command is terminated A command transmission control device for determining a transmission timing of a next command by counting a delay time from a count start timing. In any one of Claims 4 thru | or 5.
The command transmission timing determination unit
When the command transmission timing designation information includes delay information and overwrite reproduction presence / absence information indicating no overwrite reproduction, from the predetermined delay count start timing set after the reproduction of the sound corresponding to the previous command is completed. A command transmission control apparatus, characterized by counting a delay time and determining a transmission timing of a next command.   An integrated circuit device, which functions as the command transmission control device according to claim 1. A command transmission control device according to any one of claims 1 to 6;
A command transmitted from the command transmission control device connected to the command transmission control device and a plurality of sounds generated based on at least one of sound data, note data, and frequency data are reproduced in the same time zone. A sound reproduction evaluation system including a sound reproduction device capable of reproducing the sound; A test method for testing a sound reproduction device capable of reproducing a plurality of sounds generated based on at least one of sound data, note data, and frequency data in the same time period,
Determining the transmission timing of the transmission target command based on the information specifying the transmission order of the transmission target command to the sound reproduction device and the command transmission timing specification information specifying the transmission timing of at least one transmission target command;
Performing transmission control for transmitting the transmission target command to the sound reproduction device at the determined transmission timing;
A test method for a sound reproducing device comprising: