Patent ID: 9570095
Date: 2017-02-14
CPC Classifications: G10L

Claim:
1. A method for providing an estimate for noise in a speech signal, the method comprising: receiving an instantaneous power value corresponding to a frequency index of a portion of the speech signal; comparing the instantaneous power value and a first weighted power value to determine whether the instantaneous power value exceeds the first weighted power value; updating the first weighted power value based on a first weighting parameter and the comparing the instantaneous power value and the first weighted power value, to obtain an updated first weighted power value that is substantially unchanged from the current first weighted power value or substantially similar to the instantaneous power value; updating a second weighted power value based on the first weighted power value and a second weighting parameter to obtain an updated second weighted power value; and computing the estimate for the noise from the instantaneous power value and the second weighted power value.