NAME

       opusdec - decode audio in Opus format to Wave or raw PCM

SYNOPSIS

       opusdec  [ -hV ] [ --quiet ] [ --rate Hz ] [ --force-stereo ] [ --gain dB ] [ --no-dither ] [ --float ] [
       --force-wav ] [ --packet-loss pct ] [ --save-range file ] input.opus [ output.wav ]

DESCRIPTION

       opusdec decodes Opus URLs or files to uncompressed Wave or raw PCM.

       In URLs, the file , http , and https schemes are supported unless HTTP  support  was  disabled  at  build
       time.

       If  the input file is specified as - , then opusdec will read from stdin. Likewise, an output filename of
       - will cause output to be to stdout.

       If no output is specified opusdec will attempt to play  the  audio  in  realtime  if  it  supports  audio
       playback on your system.

OPTIONS

       -h, --help
              Show help message

       -V, --version
              Show version information

       --quiet
              Suppresses program output

       --rate n
              Force decoding at sampling rate n Hz

       --force-stereo
              Force decoding to stereo

       --gain n
              Adjust the output volume n dB, negative values make the signal quieter

       --no-dither
              Do not dither 16-bit output

       --float
              Output 32-bit floating-point samples instead of 16-bit integer samples

       --force-wav
              Force including a Wave header on output (e.g. for non-wav extensions and stdout)

       --packet-loss n
              Simulate n % random Opus packet loss

       --save-range file
              Save check values for every frame to a file

EXAMPLES

       Decode a file input.opus to output.wav
              opusdec input.opus output.wav

       Play a file input.opus
              opusdec input.opus

       Re-encode a high bitrate Opus file to a lower rate
              opusdec --force-wav input.opus - | opusenc --bitrate 64 - output.opus

       Play an http stream http://icecast.somwhere.org:8000/stream.opus on a system with pulseaudio
       (press ctrl-c to quit)
              padsp opusdec http://icecast.somwhere.org:8000/stream.opus

AUTHORS

       Jean-Marc Valin <jmvalin@jmvalin.ca>
       Gregory Maxwell <greg@xiph.org>

BUGS

       Opusdec does not currently reject all invalid files which it should reject.  It also doesn't provide very
       helpful output for the corrupted files it does reject. Use opusinfo(1) for somewhat better diagnostics.

SEE ALSO

       opusenc(1), opusinfo(1)

Xiph.Org Foundation                                2012-08-31                                         opusdec(1)