New Results in Rate-Distortion Optimized Parametric Audio Coding
Mads Græsbøll Christensen, Søren Holdt Jensen · VBN Forskningsportal (Aalborg Universitet) · 2006
In this paper, we summarize some recently published methods and results in parametric audio coding.These are all based on rate-distortion optimized coding using a perceptual distortion measure.We summarize how a number of well-known computationally ecient methods for incorporating perception in sinusoidal parameter estimation relate to minimizing this perceptual distortion measure.Then a number of methods for parametric coding of transients are compared and results of listening tests are presented.Finally, we show how the complexity of rate-distortion optimized audio coding can be reduced by rate-distortion estimation.