How do I set the decibel in the Denoise Speech Using Deep Learning Networks example?

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studentmatlaber
studentmatlaber 2022-3-6
回答： studentmatlaber 2022-3-6
https://www.mathworks.com/help/deeplearning/ug/denoise-speech-using-deep-learning-networks.html
Made for 0 dB in this example. But I want to diversify it. How to adjust 5dB and 15dB
noisePower = sum(noiseSegment.^2);
cleanPower = sum(audio.^2);
noiseSegment = noiseSegment .* sqrt(cleanPower/noisePower);
noisyAudio = audio + noiseSegment;

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studentmatlaber
studentmatlaber 2022-3-6
db = 10;
noisePower = sum(noiseSegment.^2);
cleanPower = sum(audio.^2);
K = (cleanPower/noisePower)*10^(-dB/10);
noiseSegment = noiseSegment .* sqrt(K); % Change Noise vector
noisyAudio = audio + noiseSegment;
sound(noisyAudio,adsTrainInfo.SampleRate)

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