Wavefunction sound sampling synthesis

Details Wavefunction sound sampling synthesis Wavefunction sound sampling synthesis

1999-07-08

2000-09-26

Donels, Jeffrey

Music

Instruments

Electrical musical tone generation

84605, G10H 700

Patent

active

061245429

ABSTRACT:
A signal representation method and apparatus for digital audio provides high quality low cost resampling by transferring the difficult interpolative computations into front-end (off-line) preprocessing, thereby reducing the load on the tone generating synthesis processor. This allows nearly perfect arbitrary-ratio resampling of stored waveforms at a fraction of the cost of prior art resampling. It also allows elimination of the prior art polyphase coefficient table since the waveform reconstruction information is fully contained within the polynomials. This is especially advantageous for execution on general purpose multi-tasking media processors.

REFERENCES:
patent: 4108036 (1978-08-01), Slaymaker
patent: 5567901 (1996-10-01), Gibson et al.
patent: 5872727 (1999-02-01), Kuo
patent: 5952596 (1999-09-01), Kondo

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