Patent ID: 8817997
Filing Date: 2014-08-26
Classification: H04S

Abstract:
1. A stereophonic sound output apparatus comprising: a direct sound generator device to localize each of a plurality of audio signals using a first head related transfer function (HRTF) for each of the plurality of audio signals; a first adder device to generate a first audio signal by combining the plurality of audio signals; an early reflection generator device to generate two early reflection audio signals by dividing the first audio signal into two audio signals using a second head related transfer function (HRTF), wherein the two early reflection audio signals have an interaural time difference (ITD); a second adder device to generate a second audio signal by combining some of the localized plurality of audio signals output from the direct sound generator and one of the two early reflection audio signals output from the early reflection generator; and a third adder device to generate a third audio signal by combining other of the localized plurality of audio signals output from the direct sound generator and the other one of the two early reflection audio signals output from the early reflection generator.