Patent ID: 8346554
Filing Date: 2013-01-01
Classification: G10L

Abstract:
1. A method comprising: receiving an input signal; computing a plurality of scores for the input signal, the plurality of scores indicative of a degree to which the input signal corresponds to at least one state of a speech recognition model; computing an average signal based on the speech recognition model and the plurality of scores; computing, via at least one processor device, a difference value representative of a difference between the input signal and the average signal; processing, via the at least one processor device, the input signal in accordance with the difference value; wherein the scores are probability scores associated with states of the input signal and wherein the average signal is a moving average generated based on the input signal, the method further comprising: biasing scores of noise states associated with the speech recognition model to increase a probability that a segment of the input signal is deemed to be sound received on a noise channel rather than sound received on a speech channel, the average signal representative of sound present in the input signal.