[FFmpeg-user] MP3 enconding bitrate

[Bob Maple]

> I have trouble to get the mp3 encoded right to play on my Volvo
> Infotainment System (Sensus 3.0), so I have contacted the costumer
> support, and they told me that the files are being encoding with frames
> with more than 320Kbps of bitrate.

 [...]

> I've encoded with this command:
> 
> ffmpeg -i 2L38_01_96kHz.flac -codec:a libmp3lame -qscale:a 0
> 2L38_01_96kHz.mp3

You're using a qscale of 0 which is like saying "use ALL of the bits!"
Raise the q or use -b:a to set a sensible bitrate ilke -b:a 192k
(opinions vary)