METHOD FOR ESTIMATING NOISE IN AN AUDIO SIGNAL, NOISE ESTIMATOR, AUDIO ENCODER, AUDIO DECODER, AND SYSTEM FOR TRANSMITTING AUDIO SIGNALS.

摘要

A method is described that estimates noise in an audio signal (102). An energy value (174) for the audio signal (102) is estimated (S100) and converted (S102) into the logarithmic domain. A noise level for the audio signal (102) is estimated (S104) based on the converted energy value (178).