Patent ID: 8311809

Claim:
A method for generating a wideband time domain output audio signal comprising a left hand audio signal component and a right hand signal component from a wideband time domain input audio signal, the method comprising the steps of: transforming the wideband time domain input audio signal to a sub-band domain input signal comprising a plurality of input sub-band signals, the input sub-band signals in a first frequency range of the wideband frequency range having a narrower frequency band than the input sub-band signals in a second frequency range of the wideband frequency range; delaying the sub-band signals so as to obtain delayed sub-band signals; deriving a first and a second processed sub-band signal by mixing a sub-band signal and a corresponding delayed sub-band signal; inverse transforming the first processed sub-band signals so as to obtain the left hand audio signal component of the wideband time domain output audio signal, and inverse transforming the second processed sub-and signals so as to obtain the right hand audio signal component of the wideband time domain output audio signal.