opusenc 命令

常用示例

说明

opusenc encodes raw or container audio (WAV, AIFF, FLAC, or raw PCM) to the Opus codec inside an Ogg container. Opus is a low-latency, royalty-free codec well suited to both music and speech at bitrates from 6 to 510 kbit/s. By default opusenc uses VBR at complexity 10, which gives the best quality for the size at the cost of CPU time. Reading from `-` lets you pipe from `ffmpeg`, `sox`, or similar tools.

参数

--bitrate _KBPS_

Target bitrate in kbit/s. Default is 64 for mono, 96 for stereo.

--vbr

Use variable bitrate (default).

--cvbr

Use constrained variable bitrate.

--hard-cbr

Use hard constant bitrate.

--comp _LEVEL_

Encoding complexity, 0 (fast) to 10 (slowest, best quality). Default 10.

--framesize _MS_

Frame size in ms (2.5, 5, 10, 20, 40, 60). Default 20.

--music / --speech

Tune the encoder for music or for speech.

--downmix-mono / --downmix-stereo

Force mono or stereo output.

--title _TITLE_, --artist _NAME_, --album _NAME_

Set Vorbis-style metadata tags.

--raw, --raw-rate _HZ_, --raw-chan _N_

Treat input as headerless PCM with the given sample rate and channel count.

--help

Display help information.