Patent ID: 8331585
Filing Date: 2012-12-11
Classification: H04M,H04R

Abstract:
1. A method of mixing at least two audio signals included in a set of audio signals provided by a set of respective audio channels, the method including: arranging the set of audio channels in a mixing stack using their respective channel identifiers, wherein one channel identifier, corresponding to one of the audio channels, is stored at each level of the stack; regularly updating the mixing stack such that a channel identifier corresponding to an audio channel which previously was active but now has become inactive is relocated below the channel identifiers corresponding to active audio channels; and producing a mixed audio output signal by mixing audio signals provided by the audio channels corresponding to a predetermined number of topmost channel identifiers stored in the mixing stack, wherein if the relocated channel identifier is one of the predetermined number of topmost channel identifiers stored in the mixing stack, the audio signal provided by the corresponding inactive audio channel is part of the mixed audio output signal.