Title :
A compliant MPEG-1 layer II audio decoder with 16-b arithmetic operations
Author :
Hans, Mathieu C. ; Bhaskaran, Vasudev
Author_Institution :
Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
5/1/1997 12:00:00 AM
Abstract :
A new 16-bit integer MPEG-1 layer II audio decoding algorithm is introduced, this algorithm incorporates a scaled Chen (1977) discrete cosine transform (DCT) instead of a generic DCT in the matrixing block, the use of a scaled DCT reduces the DCT multiply count by 28%. This 16-bit integer decoder is compliant with the Moving Picture Expert Group (MPEG) standard.
Keywords :
Hi-Fi equipment; audio coding; code standards; decoding; digital arithmetic; discrete cosine transforms; telecommunication standards; transform coding; 16 bit; 16-bit arithmetic operations; DCT multiply count reduction; MPEG standard; MPEG-1 layer II audio decoder; Moving Picture Expert Group standard; audio decoding algorithm; fixed point representation; high-quality stereo audio; matrixing block; scaled Chen discrete cosine transform; Arithmetic; Audio coding; Decoding; Discrete Fourier transforms; Discrete cosine transforms; Filter bank; ISO standards; MPEG standards; Signal processing algorithms;
Journal_Title :
Signal Processing Letters, IEEE
