A Fractal and Wavelet-Based Approach for Audio Coding

A Fractal and Wavelet-Based Approach for Audio Coding

Towards an optimization-oriented approach for audio coding, this paper presents improved rate-distortion and perceptual strategies for bit allocation. The algorithm is based on best basis wavelet-packet trees and fractal dimension calculation. Transparent coding of high quality audio, signals sample...

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Hauptverfasser: Guido, R.C., Vieira, L.S., Junior, S.B., Sanchez, F.L., Guilherme, M.B.A., Sergio, K.I.C., Scarpa, T.L., Fonseca, E.S., Pereira, J.C., Monteiro, M.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Audio coding
Bit rate
Decoding
Entropy
Filters
Fractals
Physics
Rate-distortion
Switches
Wavelet packets
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Beschreibung
Zusammenfassung:Towards an optimization-oriented approach for audio coding, this paper presents improved rate-distortion and perceptual strategies for bit allocation. The algorithm is based on best basis wavelet-packet trees and fractal dimension calculation. Transparent coding of high quality audio, signals sampled at 44.1 KHz using 16 bits PCM, is effectively achieved at low bit rates. Real time working of the decoder is confirmed, reassuring the usability of the proposed technique
DOI:10.1109/ISM.2006.3