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Audio Noise Suppressor

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29 Sep 2007 (Updated )

Suppression of Acoustic Noise in Speech

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Description

Removing back ground noise added to speech is a fundamental problem in mobile devices such as cell phones. There are several well studied methods to suppress noise.

In this Simulink model, I model and simulate noise suppression using spectral subtraction. To better understand this method, please refer to "Suppression of Acoustic Noise in Speech Using Spectral Subtraction," Steven F. Boll, IEEE Transaction on Acrostics, Speech, and Signal Processing, April 1979.

Required Products DSP System Toolbox
Signal Processing Toolbox
Simulink
MATLAB release MATLAB 7.5 (R2007b)
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Comments and Ratings (4)
24 Apr 2011 Divya Valsan

Hey good work.
I refferd the IEEE paper but had some doubts, ur demonstration solved it all. thanks a lot.

12 Feb 2008 Ali Buendia

Very good example. Also, demonstrates embedded matlab functions too.

04 Jan 2008 Fredy Jaramillo

Hi Ali.
This simulink block set dont run in mi pc. there are several block functions named fcn, that dont make nothing because Matlab dont aknowledge thaese function blocks, and dont lets open these blocks to see inside them. thanks for write me back telling me if you have the answer to this issue ASAP.

19 Oct 2007 Jianqiang Liu  

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