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Mobile AMR converter


The Mobile AMR converter uses Sony Ericsson AMR converter to convert AMR files (Adaptive Multi-Rate Codec, *.amr) to wave files (*.wav) and vice-versa in a user-friendly way. Also, you can directly convert MP3 to AMR files for use with your mobile. It can also save several wave files into one SP file and vice-versa. The program has a very easy-to-use and simple GUI (Graphical User Interface) that helps even the most amateur user. Most of the times, the only data that you must enter are the input file(s) and the output file. The AMR format is used by many mobile phones right now, for sound recordings and for MMS (message with sound, picture and text for view in cell phones).

<-> ScreenShots (ver.1.0.0): main window, amr to wave, wave to amr

<-> format table:
from amr to wav
from mp3, wav to amr
from wav(s) to sp
from sp to wav(s)

"MP3 to AMR - spot on!" - Purple Imp

Thanks for a great easy to use bit of software.



Download Mobile AMR converter (v.1.5) 



Please help us to continue the development!


If you open a *.wav, *.amr or *.sp file with Mobile AMR converter, then the file's path will be entered automatically  in the input file's field.

 Project Info

Latest version: 1.5.0


 Added in 1.0.1: - Fixed a bug for Windows 98, - Tutorial and help links were corrected


 Added in 1.1.0: - Improved interface, - Check for valid AMR file before AMR2WAV convert, - Check for "converter.exe" at start up


 Added in 1.2.0: - Check if input file exist and ask if you want to overwrite the output file if exist, - Shows progress with the time elapsed when converting, - Media Player removed, - Fixed installer, can be installed in Win98


 Added in 1.2.1: - Fixed bug with CD command


 Added in 1.3.0: - New Quick Convert option, - Auto fill the output file path, - New select file dialog


 Added in 1.3.1: - Fix sorting of bit-rates


 Added in 1.4.0: - Fixed minor bugs, - MP3 to AMR conversion added (using MAD decoder)


 Added in 1.4.1: - Fixed bug with WAVE to AMR conversion


 Added in 1.5.0: - Check for valid path and file name, - Validation process redesigned



Created and tested with :

 Sony Ericsson T68i (Mobile Phone) running R6A012-CXC125379 software version

 NOKIA 6600 (Mobile Phone) running v.3.42.1 software version

 Hi-Grade Ultinote M6500-1800 (PC) running Windows XP


The Mobile AMR converter is a GUI of the Sony Ericsson AMR converter, so the performance of the conversion is the same as the Sony Ericsson AMR converter.


Q: When I am trying to convert a wave file that I created with Sound Recorder, the produced amr file is only 18 seconds long. What can I do?


A: Just reconvert the wave file to a 16bit 8hz frequency file (mono) with Total Recorder or Winamp. To learn how to do this click here.



Q: I am trying a WAVE to AMR conversion and I select input and output file (yes, 16 bit wave with 8 kHz, mono) and the MR. I start the conversion, the green thing runs to the right, but after that, it doesn't finish. What to do?


A: Try to use Total Recorder or Winamp for the conversion as it is shown here. I know it is strange but some converters (like the Sound Recorder of Windows) do not make the 16 bit wave conversion with 8 kHz correctly. If this also fails try using English file names and paths. (ex. C:\input.wav)



Q: When I am trying to convert a file an error window appears saying "converter.exe has encountered a problem and needs to close. We are sorry for the inconvenience.". What to do?


A: You probably tried to convert a file that its file name or path contains non-english characters. Try to use a simple path like C:\Audio.amr .



Q: How can I play AMR files on my PC?


A: We suggest you to use our fast and easy Mobile 3GP player to play your AMR or 3GP files. By installing and using an AMR decoder on you PC. The most popular AMR decoder is SPOT xde Player form VoiceAge. You can also use Apple Quick Time 6.4 and above to play AMR files, download it from the Apple web site.



Q: The AMR quality is really bad! Can I do something to change this?


A: The AMR codec is a speech codec. Therefore, if you convert a music file into AMR the quality wont be very good. The only thinkg you can do to improve the quality, is to select a higher bit-rate.



Q: When I try to make a conversion the following message shows up:

"Windows\system32\autoexec.nt. The system file is not suitable for running MS-DOS and Microsoft Windows applications. Choose 'Close' to terminate the application."


A: The "autoexec.nt" is a critical Windows file. You should reinstall the Windows or copy the file from your Windows installation CD. Just follow the instructions from here.



Q: What is an SP file?


A: SP files are archive files that are used to save several Wave files. You can store and extract wave files in a SP file with MobileAMRconverter.



Q: What is AMR?


A: It is a codec offering a wide range of data rates, which was developed by the European Telecommunications Standards institute (ETSI). The AMR codec is standardized for GSM, and is also chosen by the Third Generation
Partnership Project (3GPP) as the mandatory codec for third generation systems. The philosophy behind  AMR is to lower the codec rate as the interference increases and thus enabling more error correction to be applied. The AMR codec is also used to harmonize the codec standards amongst different cellular systems.



Q: Which phones are able to play AMR files?


Alcatel 735i / One Touch 556 yes
Alpha P8 yes
Audiovox SMT5600 yes
I-mate Smartphone 2002 yes
Lexus 808B yes
LG VX7000 / 8120 yes
NEC e616v / e228 / c401i / N840 / 535m yes

Nokia 6610 / 3510i / 7210 / 6100


Nokia N70 yes
Nokia 3100 / 3200 / 3220 / 6260 / 6102 yes

Nokia 3650 / 7650 / 6600 / 7610


Nokia 6820 / 3120 / 7600 / 7200 yes

Nokia 3200 / 6220 / 6230 / 5140


Nokia N-Gage / 3230 / 6020 / 6670


Mitsubishi 620i


Motorola V525 / E398 / C550 / V330 / V360 yes

Motorola V600 / V980 /  V547 / C650


PalmOne Treo 650 yes
Panasonic X100 / X70 yes
Sagem MyX-3 / MyX-5 / MyX-6 yes
Sagem MyX-7 / MyX-8 / MyX-3.2 yes
Sagem MyV-55 / My-V65 / MyX-5.2 yes
Sendo X yes

Sharp GX20 / GX15 / GX25


Sharp GX10 / GX1


Siemens SX1 / CX65 / S65 / C62 / CX70


Siemens M55 / M65 / S55 / SL55 / C60


SAMSUNG SGH E300 / X600 / D500 yes

SAMSUNG E600 / E105 / X100 / D600E


Sony Ericsson T300 / T310 / T226 / K750i


Sony Ericsson P900(i) / P800 / Z1010


Sony Ericsson K500i / K700 / S700i yes
Sony Ericsson T630 / T628 / K300i yes
Sony Ericsson S710a / T637 / T290i / J300a yes
Sony Ericsson T68i / T610 /Z600 / W550i yes

Sony Ericsson Z500a / V800 / K750i


T-Mobile Sidekick 2 (PV-100) yes
Vitelcom TSM30 / TSM100 yes
Qtek S100 yes



Q: Is Mobile AMR converter faster or better than Sony Ericsson AMR converter?


A: The Mobile AMR converter is just a GUI of Sony Ericsson AMR converter, that is offering a user-friendlier and easier-to-use environment than Sony Ericsson AMR converter's MS-DOS command line interface. Therefore, Mobile AMR converter has the same conversion performance, speed, and quality as the Sony Ericsson AMR converter 1.2.


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