speexenc(1) [opendarwin man page]
SPEEXENC(1) User Commands SPEEXENC(1) NAME
speexenc - The reference implementation speex encoder. SYNOPSIS
speexenc [options] input_file output_file DESCRIPTION
Encodes input_file using Speex. It can read the WAV or raw files. input_file can be: filename.wav wav file filename.* Raw PCM file (any extension other than .wav) - stdin output_file can be: filename.spx Speex file - stdout OPTIONS
-n, --narrowband Narrowband (8 kHz) input file -w, --wideband Wideband (16 kHz) input file -u, --ultra-wideband "Ultra-wideband" (32 kHz) input file --quality n Encoding quality (0-10), default 8 --bitrate n Encoding bit-rate (use bit-rate n or lower) --vbr Enable variable bit-rate (VBR) --abr rate Enable average bit-rate (ABR) at rate bps --vad Enable voice activity detection (VAD) --dtx Enable file-based discontinuous transmission (DTX) --comp n Set encoding complexity (0-10), default 3 --nframes n Number of frames per Ogg packet (1-10), default 1 --comment Add the given string as an extra comment. This may be used multiple times --author Author of this track --title Title for this track -h, --help This help -v, --version Version information -V Verbose mode (show bit-rate) Raw input options: --rate n Sampling rate for raw input --stereo Consider raw input as stereo --le Raw input is little-endian --be Raw input is big-endian --8bit Raw input is 8-bit unsigned --16bit Raw input is 16-bit signed Default raw PCM input is 16-bit, little-endian, mono More information is available from the Speex site: http://www.speex.org Please report bugs to the mailing list `speex-dev@xiph.org'. COPYRIGHT
Copyright (C) 2002 Jean-Marc Valin speexenc version 1.1 September 2003 SPEEXENC(1)
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opusdec(1) opus-tools opusdec(1) NAME
opusdec - decode audio from Opus format to WAV (or simple audio output) SYNOPSIS
opusdec [ -hv ] [ --mono ] [ --stereo ] [ --rate Hz ] [ --no-dither ] [ --packet-loss pct ] [ --save-range file ] input.opus [ output.wav ] DESCRIPTION
opusdec decodes Opus files into PCM Wave (uncompressed) files. If the input file is specified as - , then opusdec will read from stdin. Likewise, an output filename of - will cause output to be to std- out. 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 Print help message -v, --version Display version information --quiet Suppresses program output --mono Force decoding in mono --stereo Force decoding in stereo --rate Force decoding at sampling rate n Hz --no-dither Do not dither 16-bit output --packet-loss Simulate n % random Opus packet loss --save-range Saves 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 and force output at 48000 regardless of the original sampling rate (48kHz output may be faster, due to avoiding resampling and some sound hardware produces higher quality output when run at 48kHz) opusdec --rate 48000 input.opus Re-encode a high bitrate Opus file to a lower rate opusdec input.opus - | opusenc --bitrate 64 - output.opus Play an http stream http://icecast.somwhere.org:8000/stream.opus with the help of curl on a system with pulseaudio (press ctrl-c to quit) curl http://icecast.somwhere.org:8000/stream.opus | padsp opusdec - 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 2012-05-28 opusdec(1)