Jonty Needham escribe: > I understand (from Google) there is a method by which one samples the > track minus the vocals and then adds the inversion of that to the track > to kill the instruments. AFAIK you can do left channel minus right channel so you're killing whatever it's in the middle of the stereo field, which usually are vocals. This work for karaoke. But I don't know a way to kill everything except the middle of the stereo field, and I don't think it's posible. (Being able to isolate something in a precise point of the stereo field would be the Holy Grail of audio production if it was posible!) Cordially, Ismael -- Ismael Valladolid Torres OpenPGP key ID: 0xDE721AF4 Jabber ID: ivalladt@xxxxxxxxxxxx http://digitrazos.info/ http://lamediahostia.blogspot.com/ ~When I grow up I will go there~