https://community.intel.com/t5/Intel-Integrated-Performance/GSMFR-encoder-and-decoder/m-p/995592#M22882 <DIV></DIV> <DIV>Generally, the GSMFR and other speech codecs from IPP 4.1stores a bitstream file informat specifiedfor testing purposes by correspondent spec.</DIV> <DIV>Sox formatsare not supported.</DIV> <DIV></DIV> <DIV>An input fileis to be in raw pcm format.To decodebitstream file after GSMFR encoderback to PCM,you need to use the same options as one used forencoding. For example, </DIV> <DIV>encodergsmfr.exe -l-v input.pcm output.cod</DIV> <DIV>decodergsmfr.exe -l -v output.cod output.pcm</DIV> <DIV></DIV> <DIV>Regards</DIV> <DIV>Vyacheslav</DIV> Thu, 17 Feb 2005 17:30:57 GMT Vyacheslav_Baranniko 2005-02-17T17:30:57Z https://community.intel.com/t5/Intel-Integrated-Performance/GSMFR-encoder-and-decoder/m-p/995591#M22881 I downloaded and compile speech-coding samples with evalution version of ipp 4.1.<BR /><BR />1) I have sound file (16-bit PCM 8000 Hz).<BR />After running encodergsmfr.exe, file *.gsm differ from a file encoded by sox. Why ? <BR /><BR />2) Why after encoding i can't decoding same file to PCM correctly ? Only white noise. Tue, 15 Feb 2005 00:59:00 GMT https://community.intel.com/t5/Intel-Integrated-Performance/GSMFR-encoder-and-decoder/m-p/995591#M22881 gur 2005-02-15T00:59:00Z https://community.intel.com/t5/Intel-Integrated-Performance/GSMFR-encoder-and-decoder/m-p/995592#M22882 <DIV></DIV> <DIV>Generally, the GSMFR and other speech codecs from IPP 4.1stores a bitstream file informat specifiedfor testing purposes by correspondent spec.</DIV> <DIV>Sox formatsare not supported.</DIV> <DIV></DIV> <DIV>An input fileis to be in raw pcm format.To decodebitstream file after GSMFR encoderback to PCM,you need to use the same options as one used forencoding. For example, </DIV> <DIV>encodergsmfr.exe -l-v input.pcm output.cod</DIV> <DIV>decodergsmfr.exe -l -v output.cod output.pcm</DIV> <DIV></DIV> <DIV>Regards</DIV> <DIV>Vyacheslav</DIV> Thu, 17 Feb 2005 17:30:57 GMT https://community.intel.com/t5/Intel-Integrated-Performance/GSMFR-encoder-and-decoder/m-p/995592#M22882 Vyacheslav_Baranniko 2005-02-17T17:30:57Z