Patent ID: 6937979
Filing Date: 2005-08-30
Classification: G10L

Abstract:
1. A method for coding a speech signal comprising: estimating a spectral content of a speech signal; determining if the estimated spectral content of the speech signal is representative of one of a plurality of defined reference spectral responses including an IRS spectral response and an MIRS spectral response; selecting a preferential coding algorithm from an assortment of coding algorithms based on the determining; coding the speech signal in accordance with the selected coding algorithm, where the selected algorithm controls the operation of at least one of a pre-processing filter, a post-processing filter, a coding control coefficient, a weighting filter, a synthesis filter, and a quantization table; wherein the coding of the speech signal in accordance with the selected coding algorithm compensates for at least one of an IRS speech signal and an MIRS speech signal to produce a frequency-response compensated speech signal.