Hi, I’m trying to investigate if Codec2 could be used in a software project, where a low bit rate speech coding is required. I have built the codec using the instructions from Github and with included reference audio files I can get similar audio quality what can be heard on Codec2 web page. However, if I try coding & decoding with some other recordings, the voice quality is unacceptable poor, even in case where there is no background noise at all.
This makes me think that I have something wrong with my input audio file format. What are the actual requirements for raw file to get best possible performance? Sample rate, encoding etc? At this stage I am using Audacity to convert the audio for testing. Thanks, and keep up the good work! t. Matti
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