How to use a particular file format.

I recently purchased a Coby CXR190-2G voice recorder. It uses a particular file format. I looked in formats but I do not seem to be able to recognize it among the choice. Here is the information about the file.
Complete name : D:~cobytesttestHPSH001.WAV
Format : Wave
File size : 5.21 MiB
Duration : 7mn 35s
Overall bit rate : 96.0 Kbps

ID : 0
Format : ADPCM
Format settings, Endianness : Little
Codec ID : 11
Codec ID/Hint : Intel
Duration : 7mn 35s
Bit rate mode : Constant
Bit rate : 96.0 Kbps
Channel(s) : 1 channel
Sampling rate : 24.0 KHz
Bit depth : 4 bits
Stream size : 5.21 MiB (100%)

Is it possible to save it ADPCM format? If it is how do I do it?

That is an odd duck. I wonder why 4 bit? Are you sure that number is OK?

Audacity will not open them? Is there a software package that came with the device or is available for it? You can try to add FFMpeg software to your Audacity to make it compatible with many more sound formats.


Yes it is, but there are different versions of ADPCM and I’m not sure which version you will need.
As Koz wrote, you will need to install FFmpeg, then you can use the Custom FFmpeg Export option and select one of the ADPCM options from the second list and enter the required bit rate where indicated. See here for more information:

Thanks for the reply.
In fact I already have the ffmpeg installed, probably as part of Freemaker . Freemaker is conversion program to convert on format to another.
From what I have read yes, it is a very low bit rate and it is used in voice recorder and for phone type applications. And yes the device I am using is a digital voice reorder.

The information about the file was produce by a program called Mediainfo. Is there any way of determine what version of ADPCM is being used?

I am looking at the “Speficy other Options” page in the AudioCity program and I see 2 columns and a place for entering specifics for each choice. I also see if example I choice WAV that the choices for the second column change. Under the second column, there are choices of different bitrates but nothing as low as 4 bitrate. Is there a possibility that a codec does not exist for this type of file?

I have looked at the Coby support site and there is no mention of the version of ADPCM, they are using. The only thing mentioned was a program to convert the file from their WAV to a more compatible WAV, that can be played on MS Media Player. I do not see any place on there Support page for a forum just a bunch of FAQ.

Is there any other information I can provide that will help solve this problem?

Thank you for your help.

There is a special “build” (version) of FFmpeg that is specifically made for use with Audacity. Your other version may or may not work with Audacity. If it doesn’t, then use this one:

Yes, that’s what I use. I don’t know of any tools that will provide more detailed information than MediaInfo. You may need to experiment and try and find a combination that works. (at least you have most of the information).

Look in the second column and select one of the ADPCM options (there’s about 4 of them that you could try).

“Bit Rate” is the number of “bits” per second - in your case it is 96.0 Kbps.
“Bit depth : 4 bits” - this is the format of each sample - in your case there are 4 “bits” to each sample.

Great :imp: