opusdec
decodes Opus audio files to WAV or raw PCM
TLDR
Decode Opus to WAV
$ opusdec [input.opus] [output.wav]
Decode to raw PCM$ opusdec --raw [input.opus] [output.pcm]
Decode to stdout$ opusdec [input.opus] - | aplay
Set output sample rate$ opusdec --rate [48000] [input.opus] [output.wav]
Force stereo output$ opusdec --force-stereo [input.opus] [output.wav]
SYNOPSIS
opusdec [options] input [output]
DESCRIPTION
opusdec decodes Opus audio files to WAV or raw PCM. If no output file is specified, opusdec attempts to play the audio directly. Use `-` for stdin/stdout. Opus is a versatile audio codec designed for both speech and music, widely used in WebRTC and streaming.
PARAMETERS
--rate Hz
Output sample rate.--raw
Output raw PCM.--force-stereo
Force stereo output.--float
32-bit float output.--gain dB
Apply gain.--no-dither
Disable dithering.--force-wav
Force including a WAV header on output (even for non-standard rates).--packet-loss %
Simulate packet loss percentage for testing.--quiet
Suppress program output.--save-range FILE
Save decoder range data to file for debugging.
EXAMPLE
$ # Decode to WAV
opusdec music.opus music.wav
# Play directly
opusdec music.opus - | aplay -f cd
# Convert with specific rate
opusdec --rate 44100 input.opus output.wav
opusdec music.opus music.wav
# Play directly
opusdec music.opus - | aplay -f cd
# Convert with specific rate
opusdec --rate 44100 input.opus output.wav
INSTALL
sudo apt install opus-tools
sudo dnf install opus-tools
sudo pacman -S opus-tools
sudo apk add opus-tools
sudo zypper install opus-tools
brew install opus-tools
nix profile install nixpkgs#opus-tools
CAVEATS
Output defaults to same channels as input. Resampling may affect quality. Use --float for highest precision.
HISTORY
Opus was developed by the IETF Codec Working Group, standardized as RFC 6716 in 2012, combining SILK and CELT technologies.
