G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 19/12 (2006.01) G10L 19/08 (2006.01) G10L 19/00 (2006.01)
Patent
CA 2290037
A gain smoothing amplifier device and method for modyfing the amplitude of an innovative codevector in relation to a background noise signal present in a previously sampled wideband signal. The gain smoothing amplifier device comprises a gain smoothing calculator for calculating a smoothed gain in response to a set of linear prediction filter coefficients, a factor representative of voicing in the sampled wideband signal, a factor representative of stability of the set of linear prediction coefficients, and an innovative codebook gain. The gain smoothing amplifier device also comprises an amplifier for amplifying the innovative codevector in relation to the smoothed gain to thereby produce a gain smoothed innovative codevector. The gain smoothing amplifier device improves the perceived synthesized signal when background noise is present in the sampled wideband signal.
Bessette Bruno
Lefebvre Roch
Salami Redwan
Bessette Bruno
Goudreau Gage Dubuc
Lefebvre Roch
Salami Redwan
Voiceage Corporation
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