opusdec

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. Opus is a versatile audio codec designed for both speech and music, widely used in WebRTC and streaming.
Part of the opus-tools package.

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.

--packet-loss %

Simulate packet loss.

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

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.