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Psychoacoustic Modelbased Noisereduction

Noise reduction improved by using psychoacoustic models (check audio 2), The classic noise reduction can be improved especially with regard to annoying so called 'musical noise' (audio 3).

1) noisy signal:
SNR = 5dB white noise
2) processed signal:
conventional approach
3) processed signal:
psychoacoustic approach
Listen to more audio samples and read more about psychoacoustic model based noise reduction here.