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Aac

Last updated:

Reference:trac.ffmpeg.org

Codecs

Quality from high to low:

libopus > libvorbis >= libfdk_aac > libmp3lame >= eac3/ac3 > aac > libtwolame > vorbis > mp2 > wmav2/wmav1

Native FFmpeg AAC Encoder.

Option	Description
`-b:a`	Bitrate, to adjust quality. (`<110k` bad, `110k~170k` good, `>170k` transparent)

shell

ffmpeg -i input.wav -acodec aac -b:a 160k output.m4a