Digital Audio Signals

Gordon and Strawn, 1985] Gordon, J. W. and Strawn, J. (1985). An Introduction to the Phase Vocoder. In Strawn, J., editor, Digital audio signal processing an anthology. William Kaufmann. 

Ballora, Mark. Essentials of Music Technology. Upper Saddle River, N.J. Prentice Hall, 2003. This book discusses five broad areas the sound of music, computer software and hardware, MIDI, digital audio signals, and additional equipment. 

The DAIO is a full duplex, fully symmetrical interface chip for the reception and transmission of digital audio signals. Each direction, receive and transmit, has its own set of dedicated 32-bit registers. The register bank holds a total of 4 frames for each direction and is double buff ed. The host processor controls the DAIO s operation by writing to a set of mode and status registers. 

Higher order architectures have been successfully used to build converters for digital audio applications [Adams, 1986][Hauser, 1991], However, the complexity of modulator and demodulator increases with the order. Higher order architectures also exhibit stability problems [van de Plassche, 1994], Dithering is a remedy to many of the problems of low level signals (see the previous section) and has been used in sigma delta converters as part of the noise shaping loop [Vanderkooy and Lipshitz, 1989]. 

Krasner, 1979] Krasner, M. A. (1979). Digital encoding of speech and audio signals based on the perceptual requirements of the auditory system. Technical Report 535, Massachusetts Institute of Technology, Lincoln Laboratory, Lexington. 

Moorer, 1983] Moorer, J. A. (1983). The Audio Signal Processor The next step in Digital Audio. In Blesser, B., Locanthi, B., and T. G. Stockham, J., editors, Digital Audio, pages 205-215. Audio Eng. Society. 

T.F. Quatieri and R.J. McAulay Audio Signal Processing Based on Sinusoidal Analysis/Synthesis. One of the basic paradigms of digital audio analysis, coding (i.e. analysis/synthesis) and synthesis systems is the sinusoidal model. It has been used for many systems from speech coding to music synthesis. The chapter contains the unified view of both the basics of sinusoidal analysis/synthesis and some of the applications. 

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