A method and a device and a system for determining the location of distortion in an audio signal

摘要

The current invention relates to a method of determining the location of distortion in a signal, wherein the method comprises dividing the signal into a number of consecutive frames each comprising a number of consecutive samples starting at respective first consecutive sample; measuring a value of at least one feature of each of the consecutive frames; comparing the values of the at least one feature to form a relationship between a consecutive frame and a frame preceding the consecutive frame; wherein the method further comprises noting the location of the consecutive frame if the relationship fulfils a condition for distortion.