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Add Noise

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Add Noise

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07 Jul 2011 (Updated )

Add noise to a signal at a prescribed SNR level.

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Description

Takes two signal vectors as inputs and produces a mixture signal at a desired SNR level (dB). Includes various examples.

Acknowledgements

Speech Spectrogram inspired this file.

This file inspired Ideal Binary Mask and Segmental Snr.

MATLAB release MATLAB 7.10 (R2010a)
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Comments and Ratings (2)
11 Mar 2013 aoli ao  
14 Aug 2011 Neo  
Updates
08 Jul 2011

Updated icon transparency on package description.

14 Jul 2011

Added:

randi = @(n)( round(1+(n-1)*rand) );

to support older MATLAB releases.

Relaxed sanity check to:

assert( abs(SNR(signal,noisy)-snr) < 1E10*eps(snr) );

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