Patent ID: 8265284

Claim:
An apparatus for generating a binaural audio signal, the apparatus comprising: a receiver for receiving audio data comprising an M-channel, M being any integer greater than or equal to 1, audio signal being a downmix of an N-channel, N being any integer greater than or equal to 1, audio signal and spatial parameter data for upmixing the M-channel audio signal to the N-channel audio signal; a parameter data converter for converting spatial parameters of the spatial parameter data into first binaural parameters in response to at least one binaural perceptual transfer function; an M-channel converter for converting the M-channel audio signal into a first stereo signal in response to the first binaural parameters; a stereo filter for generating the binaural audio signal by filtering the first stereo signal; and a coefficient determiner for determining filter coefficients for the stereo filter in response to the binaural perceptual transfer function.