Title :
Comparison between Munich and Gammachirp models in audio compression
Author :
Abid, Khalil ; Ouni, Kais
Author_Institution :
Lab. of Syst. & Signal Process. (LSTS), Nat. Eng. Sch. of Tunis, Tunisia
Abstract :
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.
Keywords :
Fourier transforms; audio coding; data compression; Gammachirp models; MPEG-1 audio layer 3; Munich models; audio coding; audio compression; psychoacoustic model; wavelet packet decomposition; Audio compression; Auditory system; Design engineering; Frequency; Laboratories; Masking threshold; Psychoacoustic models; Psychology; Signal processing; Wavelet packets; FFT; Munich and Gammachirp models; Psycho-acoustic model; Wavelet Packet Decomposition;
Conference_Titel :
Statistical Signal Processing, 2009. SSP '09. IEEE/SP 15th Workshop on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-2709-3
Electronic_ISBN :
978-1-4244-2711-6
DOI :
10.1109/SSP.2009.5278565
