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Phonology-Based Algorithm for the Suppression of Noise-Bursts in Speech

IP.com Disclosure Number: IPCOM000062977D
Original Publication Date: 1985-Jan-01
Included in the Prior Art Database: 2005-Feb-18

Publishing Venue

IBM

Related People

Authors:
Thomas, JC [+details]

Abstract

Speech communications are often subject to noise. One major type of such noise is a short-lived (less than 10 msec), loud transient burst variously called click, static, or burst. This noise is distracting, uncomfortable and hampers speech intelligibility. There is no general a priori method for reducing noise and leaving the signal intact if we know nothing about signal or noise. In the case of speech, however, we know a great deal about the signal and we can use this knowledge to reduce noise while leaving the signal intact. The artifactual clicks mentioned above have a very rapid onset and offset and can be filtered out by any of several simple digital filtering mechanisms.