Patent ID: 9093065
Filing Date: 2015-07-28
Classification: G06F,G10L,H04B

Abstract:
1. A method for transcoding a framed audio signal from a first parameter domain into a second parameter domain, wherein the framed audio signal is a parameter domain representation of a time domain audio signal and wherein each of the first parameter domain and the second parameter domain results from a time-frequency analysis and is suitable for being input to a time-frequency synthesis, the method comprising the step of linearly transforming, in a transcoder, two or more parameters of the first parameter domain to at least one parameter of the second parameter domain without creating said time domain audio signal, wherein the two or more parameters of the first parameter domain come from different frames of the audio signal in the first parameter domain and are obtained by time-frequency transformation; wherein the step of linearly transforming two or more parameters of the first parameter domain comprises using a look-up table holding transformation coefficients, wherein transformation coefficients below −60 Decibels are neglected.