Patent ID: 9479871
Filing Date: 2016-10-25
CPC Classification: G10L,H04R,H04S

Claim Text:
1. An apparatus for generating a stereo signal, comprising: a transform unit to transform a mono downmixed signal to a quadrature mirror filter (QMF) domain signal; a decorrelator to generate a decorrelated signal from the QMF domain signal; a signal generating unit to convert spatial information to a binaural 3D parameter in the QMF domain by using a head related transfer function (HRTF) parameter, and to generate a binaural output signal from the QMF domain signal and the generated decorrelated signal by using the converted binaural 3D parameter in the QMF domain; and an inverse transform unit to inverse transform the generated binaural output signal from the QMF domain to a time domain to generate the stereo signal.