Nxp B.v.

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Hage3d Gmbh

Johannes Abel

Magdalena Kaniewska

Wouter Joos Tirry

Tim Fingscheidt

Stefan Hampel

Cyril Guillaumé

Sebastian Scholz

Eric Schwarzer

Steven Weingarten

Peter Freigassner

Peter Neumeister

Sven Roszeitis

Sven Weingarten

Uwe Scheithauer

A speech-signal-processing-circuit configured to receive a time-frequency-domain-reference-speech-signal and a time-frequency-domain-degraded-speech-signal. The time-frequency-domain-reference-speech-signal comprises: an upper-band-reference-component with frequencies that are greater than a frequency-threshold-value; and a lower-band-reference-component with frequencies that are less than the frequency-threshold-value. The time-frequency-domain-degraded-speech-signal comprises: an upper-band-degraded-component with frequencies that are greater than the frequency-threshold-value; and a lower-band-degraded-component with frequencies that are less than the frequency-threshold-value. The speech-signal-processing-circuit comprises: a disturbance calculator configured to determine one or more SBR-features based on the time-frequency-domain-reference-speech-signal and the time-frequency-domain-degraded-speech-signal by: for each of a plurality of frames: determining a reference-ratio based on the ratio of (i) the upper-band-reference-component to (ii) the lower-band-reference-component; determining a degraded-ratio based on the ratio of (i) the upper-band-degraded-component to (ii) the lower-band-degraded-component; and determining a spectral-balance-ratio based on the ratio of the reference-ratio to the degraded-ratio; and (ii) determining the one or more SBR-features based on the spectral-balance-ratio for the plurality of frames.

Speech signal processing circuit

Growing community of inventors

Braunschweig, Germany

Johannes Abel