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A7600 Series_Audio_Application Note_V1.00.pdf
About Document
Version History
Scope
Contents
1 Introduction
1.1 Purpose of the document
1.2 Related documents
1.3 Conventions and abbreviations
1.4 The process of Using Audio AT Commands
1
1.1
1.2
1.3
1.4
1.4.1 The process of TTS function
1.4.2 The process of audio file playback function
1.4.3 The process of record function
1.5 Error Handling
1.5
1.5.1 Executing Audio AT Commands Fails
2 AT Commands for Audio
2
2.1 Overview of AT Commands for Audio
3 Audio Examples
3
3.1 TTS Function
2
3
3.1
3.1.1 Set TTS parameters
3.1.2 Playing UCS2 text or ASCII text
3.1.3 Playing UCS2 text or ASCII text and saving to WAV file
3.1.4 TS remote playback
3.1.5 Playing UCS2 text or ASCII text and saving to WAV file
3.2 Audio Function
3.2
3.2.1 Play AMR file and WAV file
3.2.2 Play audio file to the remote
3.2.3 Stop audio file playback
3.3 Record Function
3.3
3.3.1 Local recording
3.3.2 Remote recording
3.3.3 Stop recording
4 Appendix
4
4.1 Summary of Error Codes
A7600 Series_
Audio_Application Note
LTE Module
SIMCom Wireless Solutions Limited
Building B, SIM Technology Building, No.633, Jinzhong Road
Changning District, Shanghai P.R. China
Tel: 86-21-31575100
support@simcom.com
www.simcom.com
A7600 Series_Audio_Application Note_V1.00
A7600 Series_Audio_Application Note
1.00
2020.6.19
Released
Document Title:
Version:
Date:
Status:
GENERAL NOTES
SIMCOM OFFERS THIS INFORMATION AS A SERVICE TO ITS CUSTOMERS, TO SUPPORT
APPLICATION AND ENGINEERING EFFORTS THAT USE THE PRODUCTS DESIGNED BY SIMCOM.
THE INFORMATION PROVIDED IS BASED UPON REQUIREMENTS SPECIFICALLY PROVIDED TO
SIMCOM BY THE CUSTOMERS. SIMCOM HAS NOT UNDERTAKEN ANY INDEPENDENT SEARCH
FOR ADDITIONAL RELEVANT INFORMATION, INCLUDING ANY INFORMATION THAT MAY BE IN THE
CUSTOMER’S POSSESSION. FURTHERMORE, SYSTEM VALIDATION OF THIS PRODUCT
DESIGNED BY SIMCOM WITHIN A LARGER ELECTRONIC SYSTEM REMAINS THE RESPONSIBILITY
OF THE CUSTOMER OR THE CUSTOMER’S SYSTEM INTEGRATOR. ALL SPECIFICATIONS
SUPPLIED HEREIN ARE SUBJECT TO CHANGE.
COPYRIGHT
THIS DOCUMENT CONTAINS PROPRIETARY TECHNICAL INFORMATION WHICH IS THE PROPERTY
OF SIMCOM WIRELESS SOLUTIONS LIMITED COPYING, TO OTHERS AND USING THIS DOCUMENT,
ARE FORBIDDEN WITHOUT EXPRESS AUTHORITY BY SIMCOM. OFFENDERS ARE LIABLE TO THE
PAYMENT OF INDEMNIFICATIONS. ALL RIGHTS RESERVED BY SIMCOM IN THE PROPRIETARY
TECHNICAL INFORMATION ，INCLUDING BUT NOT LIMITED TO REGISTRATION GRANTING OF A
PATENT , A UTILITY MODEL OR DESIGN. ALL SPECIFICATION SUPPLIED HEREIN ARE SUBJECT TO
CHANGE WITHOUT NOTICE AT ANY TIME.
SIMCom Wireless Solutions Limited
Building B, SIM Technology Building, No.633 Jinzhong Road, Changning District, Shanghai P.R. China
Tel: +86 21 31575100
Email: simcom@simcom.com
For more information, please visit:
https://www.simcom.com/download/list-863-en.html
For technical support, or to report documentation errors, please visit:
https://www.simcom.com/ask/ or email to: support@simcom.com
Copyright © 2020 SIMCom Wireless Solutions Limited All Rights Reserved.
www.simcom.com 1 / 15
A7600 Series_Audio_Application Note_V1.00
About Document
Version History
Date
2020.06.19
Chapter
Description
New version
Revision
V1.00
Scope
This document presents the AT Command Set for SIMCom A7600 Series, including A7600XX-XXXX,
A5360E, sand A7670X.
www.simcom.com 2 / 15
A7600 Series_Audio_Application Note_V1.00
Contents
About Document .................................................................................................................... 2
Version History ...................................................................................................................................... 2
Scope .................................................................................................................................................... 2
Contents ................................................................................................................................. 3
1 Introduction ......................................................................................................................... 4
1.1 Purpose of the document ................................................................................................................. 4
1.2 Related documents .......................................................................................................................... 4
1.3 Conventions and abbreviations ....................................................................................................... 4
1.4 The process of Using Audio AT Commands ..................................................................................... 4
The process of TTS function ............................................................................................ 5
The process of audio file playback function ...................................................................... 5
The process of record function ......................................................................................... 6
1.5 Error Handling.................................................................................................................................. 7
Executing Audio AT Commands Fails ............................................................................... 7
2 AT Commands for Audio .................................................................................................... 8
2.1 Overview of AT Commands for Audio .............................................................................................. 8
1.4.1
1.4.2
1.4.3
1.5.1
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
3 Audio Examples .................................................................................................................. 9
3.1 TTS Function ................................................................................................................................... 9
Set TTS parameters ......................................................................................................... 9
Playing UCS2 text or ASCII text ....................................................................................... 9
Playing UCS2 text or ASCII text and saving to WAV file ................................................. 10
TS remote playback ....................................................................................................... 10
Playing UCS2 text or ASCII text and saving to WAV file ................................................. 10
3.2 Audio Function ............................................................................................................................... 11
Play AMR file and WAV file ............................................................................................. 11
Play audio file to the remote ........................................................................................... 11
Stop audio file playback ................................................................................................. 12
3.3 Record Function ............................................................................................................................ 12
Local recording ............................................................................................................... 12
Remote recording ........................................................................................................... 12
Stop recording ................................................................................................................ 13
4 Appendix ............................................................................................................................ 14
4.1 Summary of Error Codes ............................................................................................................... 14
3.2.1
3.2.2
3.2.3
3.3.1
3.3.2
3.3.3
www.simcom.com 3 / 15
A7600 Series_Audio_Application Note_V1.00
1 Introduction
1.1 Purpose of the document
Based on module AT command manual, this document will introduce Audio application process.
Developers could understand and develop application quickly and efficiently based on this document.This
document gives the usage of A7600 TTS functions , Audio file playback functions and record functions.
User can get useful information about these functions quickly through this document.
The functions are provided in AT command format, and they are designed for customers to design their
audio applications easily. User can access these Audio AT commands through UART/ USB interface which
communicates with A7600 module. Now Chinese and English languages can be supported in TTS funciotns.
And Audio file playback support to play WAV and AMR files. On the other hand, the record file are saved as
WAV files.
1.2 Related documents
[1] A7600 Series_AT Command Manual
1.3 Conventions and abbreviations
In this document, the GSM engines are referred to as following term:
AMR (Adaptive Multi-Rate);
TTS (Text to Speech);
1.4 The process of Using Audio AT Commands
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1.4.1
The process of TTS function
A7600 Series_Audio_Application Note_V1.00
Power on the module
AT+CTTSPARAM=1,3,0,1,1
(set TTS parameters)
Save wav file with 3td to show path and
filename , do not save with just tow
parameters.
TTS data write file or not
Y
Mode 1 means UCS2 text, mode 2 means
ASCII text.
AT+CTTS=1,”6B228FCE4F7F”
（play UCS2 text）
AT+CTTS=1,”6B228FCE4F7F”,”C
:/123”
（play UCS2 text and save to
C:/123.wav）
N
Stop actively by AT+CTTS=0
AT+CTTS=0
(stop TTS playing)
URC:”+CTTS: 0”
(TTS play end)
1.4.2
The process of audio file playback function
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A7600 Series_Audio_Application Note_V1.00
Power on the module
Audio file playback function
Support file type : AMR,WAV; Support file
storage :C:(file system),D:(SD card).2th
paramter is playing mode(0:local
1:remote). Last parameter is the number
of cycles.
AT+CCMXPLAY=”C:/
3034.amr”,0,1（play AMR
file）
Stop actively by AT+CCMXPLAY
AT+CCMXSTOP
(stop audio file playing)
URC:”+AUDIOSTATE: audio play
stop”
(audio file play end)
1.4.3
The process of record function
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A7600 Series_Audio_Application Note_V1.00
Power on the module
Record function
1st paramter is playing mode(1:local
2:remote). Support file
storage :C:/recording.wav(file
system),D:/recording.wav(SD card).
AT+CREC=1,”C:/
recording.wav”
(record to C:/recording.wav )
Stop actively by AT+CREC=0
AT+CREC=0
(stop recording function)
URC:”+CREC: file full”
(audio file play end)
(audio file play end)
1.5 Error Handling
1.5.1
Executing Audio AT Commands Fails
When executing Audio AT commands, if ERROR response is received from the module, please check
whether the version is supporting it when executing.
www.simcom.com 7 / 15
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