Spectral and Spatial Modification of Noise Captured During Teleconferencing

摘要

In some embodiments, a method for modifying noise captured at endpoints of a teleconferencing system, including steps of capturing noise at each endpoint, and modifying the captured noise to generate modified noise having a frequency-amplitude spectrum which matches a target spectrum and a spatial property set which matches a target spatial property set. In other embodiments, a teleconferencing method including steps of: at endpoints of a teleconferencing system, determining audio frames indicative of audio captured at each endpoint, each of a subset of the frames indicative of noise but not a significant level of speech; and at each endpoint, generating modified frames indicative of modified noise having a frequency-amplitude spectrum which matches a target spectrum and a spatial property set which matches a target spatial property set, and generating encoded audio including by encoding the modified frames. Other aspects are systems configured to perform any embodiment of the method.

主权项

1. A method for modifying noise captured during a conference at each endpoint of a set of at least two endpoints of a teleconferencing system, said method including the steps of:
(a) generating first noise samples indicative of noise captured during the conference at a first one of the endpoints and second noise samples indicative of noise captured during the conference at a second one of the endpoints; and (b) modifying the first noise samples to generate first modified noise samples indicative of modified noise having a frequency-amplitude spectrum which at least substantially matches a target spectrum, and at least one spatial property which at least substantially matches at least one target spatial property, and modifying the second noise samples to generate second modified noise samples indicative of modified noise having a frequency-amplitude spectrum which at least substantially matches the target spectrum, and at least one spatial property which at least substantially matches the target spatial property.