Subject: Subject: lead vocal detection, removal and extraction From: Bob Masta <audio(at)DAQARTA.COM> Date: Fri, 16 Sep 2005 08:39:10 -0400Tobias: I'm no expert on this, but the basic concept revolves around the fact that most vocals are recorded as mono and mixed equally to left and right channels, whereas other instruments are typically panned across the sound stage. In the pre-DSP era there was an analog electronic device called the "Thompson Vocal Eliminator" that did this task in real-time. However, as Susan has pointed out, the process wasn't perfect because there was typically some effects (reverb, etc) mixed into the L and R channels that was out of phase, so didn't cancel in a simple L-R subtraction. However, it was apparently good enough for the intended use. The live singer's voice would tend to mask these leakage effects... or they might even be regarded as some sort of enhancement. Best regards, Bob Masta ----------------------------------- > Date: Tue, 13 Sep 2005 17:19:31 +0200 > From: =?iso-8859-1?Q?Tobias_Wagenbla=DF?= > <tobias.wagenblass(at)GMX.DE> Subject: lead vocal detection, > removal and extraction > > hi, > > i have to do a "karaoke algorithm" as my diploma thesis > and i am currently collecting information about this > topic. so, it would be helpful if anyone could help me > finding informations on > > - detecting and extracting the lead vocals (in stereo > signals) - removing the lead vocals (from stereo signals) > > and related stuff like source separation. > > thanks so far, > tobias > > ------------------------------ Bob Masta audioATdaqartaDOTcom