Effect of a Simulated Analogue Telephone Channel on the Performance of a Remote Automatic System for the Detection of Pathologies in Voice Impact of Linear Distortions on Cepstrum-based Assessment: Band Limitation, Frequency Response and Additive Noise - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2009

Effect of a Simulated Analogue Telephone Channel on the Performance of a Remote Automatic System for the Detection of Pathologies in Voice Impact of Linear Distortions on Cepstrum-based Assessment: Band Limitation, Frequency Response and Additive Noise

Résumé

Advances in speech signal analysis during the last decade have allowed the development of automatic algorithms for a non-invasive detection of laryngeal pathologies. Performance assessment of such techniques reveals that classification success rates over 90 % are achievable. Bearing in mind the extension of these automatic methods to remote diagnosis scenarios, this paper analyses the performance of a pathology detector based on Mel Frequency Cepstral Coefficients when the speech signal has undergone the distortion of an analogue communications channel, namely the phone channel. Such channel is modeled as a concatenation of linear effects. It is shown that while the overall performance of the system is degraded, success rates in the range of 80% can still be achieved. This study also shows that the performance degradation is mainly due to band limitation and noise addition.
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Dates et versions

hal-01317126 , version 1 (18-05-2016)

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  • HAL Id : hal-01317126 , version 1

Citer

Ruben Fraile, Nicolas Saenz-Lechon, Juan Ignacio Godino-Llorente, Victor Osma-Ruiz, Corinne Fredouille. Effect of a Simulated Analogue Telephone Channel on the Performance of a Remote Automatic System for the Detection of Pathologies in Voice Impact of Linear Distortions on Cepstrum-based Assessment: Band Limitation, Frequency Response and Additive Noise. BIOSTEC, Jan 2009, Porto, France. ⟨hal-01317126⟩

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