초록 ▼

A noise suppression apparatus has a main microphone for mainly picking up a voice and for outputting an input signal including an audio signal and a first noise component generated from a noise source, a reference microphone for picking up a second noise component generated from the noise source, a

A noise suppression apparatus has a main microphone for mainly picking up a voice and for outputting an input signal including an audio signal and a first noise component generated from a noise source, a reference microphone for picking up a second noise component generated from the noise source, a filter bank for band-dividing the input signal from the main microphone and the second noise component from the reference microphone, and a noise cancel circuit for obtaining a phase difference between the input signal and the second noise component with respect to each divided band of the filter bank so as to correct the input signal based on the phase difference and for cancelling the first noise component in the input signal by use of the corrected input signal.

대표청구항 ▼

An apparatus for noise suppression of a voice that includes audio and noise, said apparatus comprising: main input means for primarily picking up the voice and for outputting an input signal including an audio signal and a first noise component, said first noise component being generated from the no

An apparatus for noise suppression of a voice that includes audio and noise, said apparatus comprising: main input means for primarily picking up the voice and for outputting an input signal including an audio signal and a first noise component, said first noise component being generated from the noise in the voice; reference input means for picking up a second noise component generated from the noise in the voice; filter bank means for band-dividing the input signal from said main input means and the second noise component from said reference input means to output a plurality of divided band components; and noise cancelling means for obtaining a phase difference between the input signal and the second noise component with respect to each of the divided band components output from said filter bank means so as to correct the input signal based on the phase difference and for cancelling the first noise component in said input signal.