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

[Carl Zwanzig]

On 12/23/2018 12:38 PM, CherylJosie wrote:
> ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers

Also consider updating your version of ffmpeg- that's really old.

z!