System enhancement of speech signals

摘要

A system enhances speech by detecting a speaker's utterance through a first microphone positioned a first distance from a source of interference. A second microphone may detect the speaker's utterance at a different position. A monitoring device may estimate the power level of a first microphone signal. A synthesizer may synthesize part of the first microphone signal by processing the second microphone signal. The synthesis may occur when power level is below a predetermined level.

主权项

1. A signal processing method comprising:
detecting a speaker's utterance by at least one first microphone to obtain a first microphone signal; detecting the speaker's utterance by at least one second microphone to obtain a second microphone signal wherein the second microphone detects less interference from a source of interference as compared to the first microphone; determining a signal-to-noise ratio of the first microphone signal; and synthesizing at least one part of the first microphone signal for which the determined signal-to-noise ratio is below a predetermined level based on the second microphone signal.