Audio Signal Processing and Coding (Google eBook)
John Wiley & Sons, Sep 11, 2006 - Technology & Engineering - 544 pages
Master algorithms and standards for transparent coding of high-fidelity audio Here is an in-depth treatment of algorithms and standards for transparent coding of high-fidelity audio. Readers learn how algorithms for high-quality digital audio deliver transparent signal reproduction with a minimum number of bits. The unique features of the book include detailed coverage of topics such as filter banks, transform coding, sinusoidal analysis, linear prediction, hybrid algorithms, perceptual evaluation methods, scalable algorithms, Internet applications, MP3 and MP4 stereo systems, and current international and commercial audio standards. Following a general introduction, the authors present fundamental signal processing concepts relevant to audio coding and then introduce waveform and entropy quantization schemes. Next are thorough treatments of the following topics: Linear prediction, ADPCM, and CELP algorithms for narrowband and wideband coding Cellular telephony vocoders versus CD-quality audio coders Perceptual modules including the ISO/IEC 11172-3 (MPEG-1) psychoacoustic analysis model Detailed descriptions of the MPEG-1 Layer III (MP3) and the AAC (MP4) algorithms Descriptions of the algorithms behind successful products such as the Apple iPod Filter bank design and algorithms and the Modified Discrete Cosine Transform (MDCT) Established and emerging standards for transparent coding of CD-quality stereo audio signals Standardization activities in high-fidelity audio coding, including DVD-Audio, Super Audio CD (SACD), Dolby AC3, Digital, Digital Theater Systems (DTS), and Sony SDDS surround sound Lossless audio coding and digital audio watermarking techniques, including SHORTEN, DVD-algorithm, MUSICompress, AudioPaK, C-LPAC, LTAC, and IntMDCT lossless coding schemes Surround sound compression algorithms for cinema and super audio CD applications Digital audio watermarking, content protection, and copyright issues Complexity, delay, error control, and subjective quality in perceptual audio coding Computer exercises and MATLABŪ hands-on projects complement the algorithm theory and reinforce concept learning. A comprehensive bibliography with more than 600 references to additional sources of information to explore individual topics in greater depth. This textbook includes all the right elements and topics for a senior and/or graduate-level course in speech/audio processing and multimedia. Moreover, it is highly recommended for practitioners, scientists, and audio engineers who want to master coding algorithms for high-fidelity audio.
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adaptive ADPCM amplitude analysis ﬁlter ASAC ATRAC audio coding audio signal Audio Signal Processing audio watermarking auditory bandwidth bit allocation bit rate bitstream block CELP channel Chapter codebook codec coder coding algorithms coding scheme coefﬁcients complexity components compression computed critical band decoder deﬁned descriptors digital audio distortion Dolby efﬁcient encoding entropy coding error estimate example ﬁle ﬁlter bank ﬁrst frame frequency response function Golomb coding Huffman coding hybrid input audio input signal ISO/IEC ITU-T kb/s layer masker masking threshold MDCT MIDI modiﬁcation module MPEG MPEG-2 AAC MPEG-4 audio multichannel multimedia output parameters perceptual audio perceptual model pre-echo Proc psychoacoustic quantization noise reconstruction residual resolution SACD scalable Section shown in Figure side information signal processing signiﬁcant sinusoidal speciﬁc spectral spectrum speech stereo structure subband synthesis ﬁlter techniques time-frequency tonal transform vector wavelet