Set The Audio Quality Codec-Specific Vbr

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FFmpeg VBR Settings

https://slhck.info/video/2017/02/24/vbr-settings.html

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FFmpeg Codecs Documentation

https://ffmpeg.org/ffmpeg-codecs.html

vbr. Set VBR mode, from 1 to 5. 1 is lowest quality (though still pretty good) and 5 is highest quality. A value of 0 will disable VBR, and CBR (Constant Bit Rate) is enabled. Currently only the ‘aac_low’ profile supports VBR encoding. VBR modes 1-5 correspond to roughly the following average bit rates: ‘1’ 32 kbps/channel ‘2’

man page ffmpeg section 1

https://www.manpagez.com/man/1/ffmpeg/ffmpeg-2.6.php

-aq q (output) Set the audio quality (codec-specific, VBR). This is an alias for -q:a. -ac[:stream_specifier] channels (input/output,per-stream) Set the number of audio channels. For output streams it is set by default to the number of input audio channels.

Web audio codec guide - Web media technologies | MDN

https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Audio_codecs

Even modest quality, high-fidelity stereo sound can use a substantial amount of disk space. For web developers, an even bigger concern is the network bandwidth needed in order to transfer audio, whether for streaming or to download it for use during gameplay. The processing of audio data to encode and decode it is handled by an audio codec (COder/DECoder).

ffmpeg(1) - ffmpeg video converter - explainshell.com

https://www.explainshell.com/explain/1/ffmpeg

-aq q Set the audio quality (codec-specific, VBR).-ac channels Set the number of audio channels. For output streams it is set by default to the number of input audio channels. For input streams this option only makes sense for audio grabbing devices and raw demuxers and is mapped to the corresponding demuxer options.-an Disable audio recording.-acodec codec Force audio codec …

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