MULTISTAGE LOW POWER, LOW LATENCY, AND REAL-TIME DEEP LEARNING SINGLE MICROPHONE NOISE SUPPRESSION

MULTISTAGE LOW POWER, LOW LATENCY, AND REAL-TIME DEEP LEARNING SINGLE MICROPHONE NOISE SUPPRESSION

A multi-stage noise suppression system for reducing noise components in a noisy input signal has a first stage neural network that estimates a noise power spectrum for the noisy input signal. A first set of gain values corresponding to the noise power spectrum is generated by the first stage neural...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Elkhatib, Mouna, Benyassine, Adil
Format: Patent
Sprache:eng
Schlagworte:
ACOUSTICS
MUSICAL INSTRUMENTS
PHYSICS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
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Beschreibung
Zusammenfassung:A multi-stage noise suppression system for reducing noise components in a noisy input signal has a first stage neural network that estimates a noise power spectrum for the noisy input signal. A first set of gain values corresponding to the noise power spectrum is generated by the first stage neural network. A second stage neural network estimates clean signal power spectrum values, which are derived from an application of a second set of gain values generated as a function of the clean signal power spectrum values and a first stage reduced noise signal power spectrum values.