search for: pc8bitsamples

Hello Mark, The resulting 8 bit file has a lot of squelching noise compared to the 16 bit output from OPUS decoder. During encode I am using popi16fmtBuffer[ui32Loop] = (opus_int16)pcRdBuf[ui32Loop]; And during decode since the data is in the lower 8 bit I use pc8bitSamples[ui32Loop] = ((unsigned short)pcop16OutBuf[ui32Loop] ^ 0x80); Regards Amit On Sat, Jan 9, 2016 at 2:39 PM, Amit Ashara <ashara.amit at gmail.com> wrote: > Hello Mark, > > Thanks. Let me try the proposed configuration first to make sure that > linear 8-bit PCM is retrieved. >...

...> > The resulting 8 bit file has a lot of squelching noise compared to the 16 > bit output from OPUS decoder. > During encode I am using > > popi16fmtBuffer[ui32Loop] = (opus_int16)pcRdBuf[ui32Loop]; > > And during decode since the data is in the lower 8 bit I use > > pc8bitSamples[ui32Loop] = ((unsigned short)pcop16OutBuf[ui32Loop] ^ 0x80); > > Regards > Amit > > On Sat, Jan 9, 2016 at 2:39 PM, Amit Ashara <ashara.amit at gmail.com> wrote: > >> Hello Mark, >> >> Thanks. Let me try the proposed configuration first to make sure that &g...

opus_decode() produces 16-bit signed linear PCM, and opus_decode_float() produces 32-bit floating point PCM that is useful when you want a higher bit depth. If you need 8-bit linear PCM then a simple solution would be to use only the top 8 bits of each 16-bit sample from opus_decode(). Note that the WAV format uses unsigned rather than signed integers for 8-bit linear PCM. (It uses signed for