Patent ID: 6067361
Filing Date: 2000-05-23
Classification: H04S

Abstract:
A method for generating two channels of sound signals from a multiplicity of sound signals, said multiplicity of sound signals comprising a first plurality of front signals and second plurality of rear signals, said method comprising the steps of:applying a 90.degree. phase shift to the second plurality of rear sound signals;applying head related transfer functions to the phase shifted second plurality of rear sound signals to generate modified rear sound signals, said modified rear signals comprising signals identified as corresponding to the first channel and signals corresponding to the second channel;said front signals comprising signals identified as corresponding to the first channel and signals corresponding to the second channel;combining the signals corresponding to the first channel to generate a first combined signal, the modified rear signals corresponding to the first channel being subtracted from the remaining signals corresponding to the first channel; andcombining the signals corresponding to the second channel togenerate a second combined signal.