Patent ID: 11950088
Assignee: AGORA LAB, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A computer-implemented method for generating spatial audio with uniform reverberation in a real-time communication session for a user with a headset on, said method performed by a real-time communication software application within an electronic communication device and comprising:
1) retrieving a stream of audio signals of said user's speech from an audio input interface of said electronic communication device;
2) removing reverberation from said stream of audio signals to generate a stream of dry signals;
3) convolving said stream of dry signals with a set of room impulse responses to generate reverberant sound parts of binaural sounds;
4) filtering said reverberant sound parts of binaural sounds through a high-pass filter, thereby forming high-pass filtered signals;
5) filtering said high-pass filtered signals through a mouth-ear transfer function, thereby forming mouth-ear transfer function filtered signals;
6) filtering said mouth-ear transfer function filtered signals through a set of headphone compensation filters to generate audio signal for said user's left ear; and
7) filtering said mouth-ear transfer function filtered signals through a set of headphone compensation filters to generate audio signal for said user's right ear.