Projects per year
Aliasing is major problem in any audio signal processing chain involving non linearity. The usual approach to antialiasing involves operation at an over sampled rate-usually 4 to 8 times an audio sample rate. Recently, a new approach to antialiasing in the case of memory less nonlinearities has been proposed, which relies on operations over the antiderivative of the nonlinear function, and which allows for antialiasing at audio or near-audio rates, and without regard to the particular form of the nonlinearity (i.e., polynomial, or hard clipping). Such techniques may be deduced through an application of Lagrange interpolation over unequally-spaced values, and, furthermore, may be constrained to behave as spectrally transparent “throughs” for nonlinearities which reduce to linear at low signal amplitudes. Numerical results are presented.
|Title of host publication||Proceedings of the IEEE Workshop on Applications of Signal Processing to Audio and Acoustics|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Number of pages||5|
|Publication status||E-pub ahead of print - 11 Dec 2017|
- acoustic signal processing
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- 1 Finished
1/01/12 → 31/12/16