[FFmpeg-user] Creating surround sound from mono wav files

Paul B Mahol onemda at gmail.com
Sun Dec 23 22:53:46 EET 2018

On 12/23/18, CherylJosie <exwyeorzee-at-yahoo.com at ffmpeg.org> wrote:
> Hi all,
> I am trying to merge a surround sound file from discrete mono files with
> ffmpeg.
> The -map_channel function does not accept multiple audio input streams, and
> so far I have only managed to create stereo with -filter_complex amerge.
> amerge seems to ignore additional channels beyond stereo at the output, even
> though it parses them as inputs.

It does not parses them all.
Read manual and you will notice that amerge needs option that set
number of inputs.

More information about the ffmpeg-user mailing list