Object-coding for resolution-free musical audio

Stephen Welburn 1 Mark Plumbley 1 Emmanuel Vincent 2
2 METISS - Speech and sound data modeling and processing
IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, Inria Rennes – Bretagne Atlantique
Abstract : Object-based coding of audio represents the signal as a parameter stream for a set of sound-producing objects. Encoding in this manner can provide a resolution-free representation of an audio signal. Given a robust estimation of the object-parameters and a multi-resolution synthesis engine, the signal can be "intelligently" upsampled, extending the bandwidth and getting best use out of a high-resolution signal-chain. We present some initial findings on extending bandwidth using harmonic models.
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Stephen Welburn, Mark Plumbley, Emmanuel Vincent. Object-coding for resolution-free musical audio. 31st AES Int. Conf. on new directions in high resolution audio, Jun 2007, London, United Kingdom. ⟨inria-00544224⟩

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