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Justia Patents

Patents Assigned to GenAudio, Inc.

Audio spatialization and environment simulation
Patent number: 9271080
Abstract: Methods are disclosed for improving sound localization of the human ear. In some embodiments, the method may include creating virtual movement of a plurality of localized sources by applying a periodic function to one or more location parameters of a head related transfer function (HRTF).
Type: Grant
Filed: August 26, 2013
Date of Patent: February 23, 2016
Assignee: GenAudio, Inc.
Inventors: Jerry Mahabub, Stephan M. Bernsee, Gary Smith
Audio spatialization and environment simulation
Patent number: 9197977
Abstract: A method and apparatus for processing an audio sound source to create four-dimensional spatialized sound. A virtual sound source may be moved along a path in three-dimensional space over a specified time period to achieve four-dimensional sound localization. A binaural filter for a desired spatial point is applied to the audio waveform to yield a spatialized waveform that, when the spatialized waveform is played from a pair of speakers, the sound appears to emanate from the chosen spatial point instead of the speakers. A binaural filter for a spatial point is simulated by interpolating nearest neighbor binaural filters chosen from a plurality of pre-defined binaural filters. The audio waveform may be processed digitally in overlapping blocks of data using a Short-Time Fourier transform. The localized sound may be further processed for Doppler shift and room simulation.