Patent ID: 8175280
Filing Date: 2012-05-08
Classification: H04S

Abstract:
1. Decoder for deriving a headphone down mix signal using a representation of a down mix of a multi-channel signal and using a level parameter having information on a level relation between two channels of the multi-channel signal and using head-related transfer functions related to the two channels of the multi-channel signal, comprising: a filter calculator for deriving modified head-related transfer functions by weighting the head-related transfer functions of the two channels using the level parameter such that a modified head-related transfer function is stronger influenced by the head-related transfer function of a channel having a higher level than by the head-related transfer function of a channel having a lower level and that a phase compensation of the head-related transfer functions of the two channels is achieved prior to a combination of weighted and phase-compensated head-related transfer functions of the two channels; and a synthesizer for deriving the headphone down mix signal using the modified head-related transfer functions and the representation of the down mix signal.