Patent ID: 11917394
Assignee: VORTANT TECHNOLOGIES, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A system for reducing noise in binaural or stereo audio comprising:
a processing device comprising a memory device, the memory device storing program code that when executed by the processing device, causes the processing device to perform operations;
and a plurality of microphones, the microphones configured to output a multiple-channel input sound signal;
wherein the processing device is configured to receive the multiple-channel input sound signal;
and wherein the program code comprises a Source Filter program code, a second Source Filter program code, an Angle Calculator program code, and a Sound Combiner program code;
wherein the Source Filter program code comprises a filter configured to have a frequency response comprising a plurality of local maxima occurring substantially periodically as a function of frequency, and wherein the Source Filter program code is associated with a fundamental frequency;
and wherein the Source Filter program code is configured to receive the multiple-channel input sound signal and to output a multiple-channel sound source signal;
and wherein the second Source Filter program code is configured to receive the multiple-channel input sound signal and to output a second multiple-channel sound source signal;
and wherein the Angle Calculator program code is configured to calculate an apparent direction of the multiple-channel sound source signal and to output a calculated apparent direction signal;
and wherein the Sound Combiner program code is configured to receive a Focus Angle signal, and to produce an output signal based on a comparison of the calculated apparent direction signal with the Focus Angle signal and based on modifying an amplitude of the multiple-channel sound source signal.