[FFmpeg-user] Naming an audio track

[Tomáš Hnyk]

Hello,
When a file has more audio tracks, it is handy to name them and at least  
VLC can show their names - or titles, I am not sure about the terminology  
- in menu under Audio>Audio Track. How do I set the names using ffmpeg? I  
know how to set the language using  -metadata:s:a:0 language=eng but this  
is something else. What is the right syntax?
Regards,
Tomas