audio

all formats but 'best' are converted from the source format, there will be some quality loss. when 'best' format is selected, the audio is kept in its original format whenever possible.

bitrate is applied only when converting audio to a lossy format. cobalt can't improve the source audio quality, so choosing a bitrate over 128kbps may inflate the file size with no audible difference. perceived quality may vary by format.

a dubbed audio track for the selected language will be used if available; otherwise, the original will be used.

a dubbed audio track for the selected language will be used if available; otherwise, the original will be used.

the sound will be downloaded from the video without any changes by the post's author.