These are based on the use of the Helmholtz boundary integral formulation, and approximations thereto such as the Rubinowicz diffraction integral. It is hoped that this will lead to improved low-frequency measurement procedures in reverberant rooms. The use of analogue as well as digital dithering techniques in digital audio, and digital signal processing in general, is being investigated both theoretically and experimentally.
Dither can eliminate errors due to data quantization.
Spectrally shaped dither signals and the design of dithered noise-shaping quantizers are specific current interests. The application of digital signal processing techniques to audio promises to revolutionize the field in the next decade. We are pursuing investigations in such areas as room deconvolution, adaptive equalization, and surround- sound reproduction. S.P. Lipshitz and J. Vanderkooy . 1983. A family of linear-phase crossover networks of high slope derived by time delay.