Advanced periodic signal enhancement

Details Advanced periodic signal enhancement Advanced periodic signal enhancement

G - Physics

10

L

G10L 21/02 (2006.01)

Patent

CA 2571417

An enhancement system improves the perceptual quality of a processed speech. The system includes a delay unit that delays a signal received through a discrete input. A spectral modifier linked to the delay unit is programmed to substantially flatten the spectral character of a background noise. An adaptive filter linked to the spectral modifier adapts filter characteristics to match a response of a non-delayed signal. A programmable filter is linked to the delay unit. The programmable filter has a transfer function functionally related to a transfer function of the adaptive filter.

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