SITUATION DEPENDENT TRANSIENT SUPPRESSION

摘要

Provided are methods and systems for providing situation-dependent transient noise suppression for audio signals. Different strategies (e.g., levels of aggressiveness) of transient suppression and signal restoration are applied to audio signals associated with participants in a video/audio conference depending on whether or not each participant is speaking (e.g., whether a voiced segment or an unvoiced/non-speech segment of audio is present). If no participants are speaking or there is an unvoiced/non-speech sound present, a more aggressive strategy for transient suppression and signal restoration is utilized. On the other hand, where voiced audio is detected (e.g., a participant is speaking), the methods and systems apply a softer, less aggressive suppression and restoration process.

主权项

1. A computer-implemented method for suppressing transient noise in an audio signal, the method comprising:
estimating a voice probability for a segment of the audio signal containing transient noise, the estimated voice probability being a probability that the segment contains voice data; responsive to determining that the estimated voice probability for the segment is greater than a threshold probability, performing a first type of suppression on the segment; and responsive to determining that the estimated voice probability for the segment is less than the threshold probability, performing a second type of suppression on the segment, wherein the second type of suppression suppresses the transient noise contained in the segment to a different extent than the first type of suppression.