Patent ID: 9542149
Date: 2017-01-10
CPC Classifications: G06F,G10L

Claim:
1. A method comprising: determining at least two linear prediction coefficients for an audio frame digitally sampled at a first sampling rate; converting the at least two linear prediction coefficients to at least two line spectral frequency coefficients; and quantizing each of the at least two line spectral frequency coefficients to produce at least two quantized line spectral frequency coefficients, wherein a highest order quantized line spectral frequency coefficient of the at least two quantized line spectral frequency coefficients is in a first frequency range of at least two frequency ranges, wherein the first frequency range is associated with the first sampling rate, and wherein the first frequency range is distinguishable from a second frequency range of the at least two frequency ranges, wherein the second frequency range is associated with a highest order quantized line spectral frequency for an audio frame digitally sampled at a second sampling rate.