Comparison between Munich and Gammachirp models in audio compression
Khalil Abid, Kaïs Ouni · 2009 IEEE/SP 15th Workshop on Statistical Signal Processing · 2009
In this paper we present a new design of a psychoacoustic model for audio coding following the model used in the standard MPEG-1 audio layer 3. This architecture is based on appropriate wavelet packet decomposition instead of a short term Fourier transformation. Its important characteristic is to propose an analysis of the frequency bands that come closer to the critical bands of the ear. This study shows the best performance of the Gammachirp coder.