Title :
Integer low delay and MDCT filter banks
Author :
Geiger, Ralf ; Schuller, Gerald
Author_Institution :
Fraunhofer AEMT, Ilmenau, Germany
Abstract :
Recently, lifting-based integer approximations of filter banks have received much attention, especially in the field of image coding. The application of the techniques to cosine modulated filter banks for audio coding, including not only the modified discrete Fourier transform (MDCT) but also low delay filter banks are focused on. Applications of the integer filter banks include lossless audio coding and backward compatible lossless enhancement of MDCT-based perceptual audio coding schemes, such as MPEG-2/4 AAC.
Keywords :
audio coding; channel bank filters; delay filters; discrete cosine transforms; transform coding; MDCT; MPEG-2/4 AAC; backward compatible lossless enhancement; integer low delay filter banks; lifting-based integer approximations; lossless audio coding; modified discrete Fourier transform; perceptual audio coding; Audio coding; Channel bank filters; Decoding; Delay; Digital audio players; Discrete cosine transforms; Filter bank; Production; Solid state circuits; Streaming media;
Conference_Titel :
Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7576-9
DOI :
10.1109/ACSSC.2002.1197291
