[FFmpeg-user] Awful audio distortion with line input capture

[Andy Furniss]

MrNice wrote:
> Hello,
>
> I want to record audio from line input with ffmpeg.
> I have a player connected to the line input and run the below command.
>
> I get the file but there is an awful distortion even when I reduce the
> recording level with PulseAudio Volume Control and Mate Volume Control.
> Direct listening is good.

As you are using alsa direct I would try adjusting the levels with 
alsamixer.