I haven't tried it with an mp3 stream as I listen mostly to ogg ones, should it matter? I'm running:
streamripper http://firewall-ogg.frequence3.net:80/frequence3.ogg -o larger --xs_offset=7500 --xs_padding=2500:2500 -r 9999 -w parse_rules.txt
where:
%] cat parse_rules.txt
m/^ - A suivre/e
m/^ - A suivre/e
m/suivre/e
m/.*suivre.*/e.
2009-07-03 22:50:50 UTC in Streamripper
