VERFAHREN UND SYSTEM ZUR MESSUNG DER SPRACHVERSTÄNDLICHKEIT EINES TONÜBERTRAGUNGSSYSTEMS
Method and processing system for measuring the intelligibility of a degraded output signal ( Y(t) ) from an audio transmission system (10) in response to a reference input signal ( X(t) ). A measurement device (11) is arranged for outputting a measure (I) for the speech intelligibility of the output...
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| creator | VAN VUGT, JEROEN MARTIJN BEERENDS, JOHN GERARD VAN BUUREN, RONALD ALEXANDER |
| description | Method and processing system for measuring the intelligibility of a degraded output signal ( Y(t) ) from an audio transmission system (10) in response to a reference input signal ( X(t) ). A measurement device (11) is arranged for outputting a measure (I) for the speech intelligibility of the output signal ( Y(t) ). The measurement device (11) executes processing of the input signal (X(t)) and output signal (Y(t)) to obtain a disturbance density function ( D(f) n ). The disturbance density function ( D(f) n ) is corrected by multiplying it with a correction function for each frame derived from a correlation calculation of the compensated pitch power densities ( PPX'(f) n ) associated with the input signal ( X(t) ) of a present frame ( n ) and an independent previous frame ( n-2 ). The corrected disturbance density function ( D'(f) n ) is aggregated over frequency and time to obtain a measure (I) for the speech intelligibility of the output signal ( Y(t) ). |
| format | Patent |
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| subjects | ACOUSTICS MUSICAL INSTRUMENTS PHYSICS SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION |
| title | VERFAHREN UND SYSTEM ZUR MESSUNG DER SPRACHVERSTÄNDLICHKEIT EINES TONÜBERTRAGUNGSSYSTEMS |
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