This solution use amr-nb voice codec to code and decode .wav files in order to sound quality on different bitrates. IDE: VS 2010 In solution four projects 1. ConvertWavToData - convert .wav file to PCM short file. 2. AMRNBCodec - amr-nb en

1. Download VS Express 2010 and install http://download.microsoft.com/download/5/C/1/5C156922-CA10-49D8-B7E7-9BF092C3B6EB/VS2010ExpressCHS.iso 2. Download Windows SDK 7.1 and install https://www.microsoft.com/en-us/download/details.aspx?id=8