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SUMMARY:Audio signal indexing : Application to drum signal separation and 
 transcription - Gaël RICHARD\, ENST (Télécom Paris)
DTSTART:20070306T130000Z
DTEND:20070306T140000Z
UID:TALK6697@talks.cam.ac.uk
CONTACT:Taylan Cemgil
DESCRIPTION:The enormous amount of unstructured digital audio (and more ge
 nerally multimedia) data available nowadays and the spread of its use as a
  data source in many applications are introducing new challenges to resear
 chers in information and signal processing. The need for content-based aud
 io data indexing and retrieval techniques to make the audio information mo
 re readily available to the user is becoming ever more critical.  The purp
 ose of this talk is to present current research directions in audio indexi
 ng conducted at GET-ENST. After a brief introduction of our subspace based
  signal analysis framework\, several aspects of audio indexing such as fea
 ture selection or Harmonic/noise decomposition will be illustrated in the 
 context of drum signal processing (drum signal separation and transcriptio
 n). Some preliminary results in audio transcription based on Non-Negative 
 Matrix factorisation will be also briefly be discussed. The talk will be c
 oncluded with a demonstration of audio post-remixing (with enhanced or red
 uced drum track) and if time remains with a demonstration of a drum loop r
 etrieval system from vocal queries.\n\nInformation on Gaël Richard at:\nh
 ttp://www.enst.fr/~grichard/
LOCATION:LR10\, Engineering\, Department of
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