Relative pulse position in celp vocoding

G - Physics – 10 – L

Patent

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Details

G10L 19/04 (2006.01) G10L 19/10 (2006.01) G10L 19/12 (2006.01) H03M 7/30 (2006.01)

Patent

CA 2350353

An apparatus and method for vocoding an input signal comprising a linear predictive filter for generating a filtered signal with a first signal pulse and a second signal pulse in response to receiving the input signal and a processor having a lookup table with a plurality of track positions. The first signal pulse is associated with a first track position and the second signal pulse is associated with a second track position relative to the first signal pulse resulting in a plurality of excitation parameters. Additionally, the apparatus has a transmitter which transmits the plurality of excitation parameters in a transmission signal in response to receiving the plurality of excitation parameters from the processor.

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