Speech enhancement with gain limitations based on speech...

Details Speech enhancement with gain limitations based on speech... Speech enhancement with gain limitations based on speech...

G - Physics

10

L

G10L 21/02 (2006.01)

Patent

CA 2362584

An apparatus and method for data processing that improves estimation of spectral parameters of speech data and reduces algorithmic delay in a data coding operation. Estimation of spectral parameters is improved by adaptively adjusting a gain function used to enhance data based on whether the data contains information speech and noise or noise only. Delay is reduced by extracting coding parameters using incompletely processed data.

Cette invention a trait à un dispositif et à une technique de traitement des données améliorant l'estimation de paramètres spectraux de données vocales et réduisant le délai algorithmique dans une opération de codage de données. On améliore l'estimation de paramètres spectraux en ajustant de manière adaptative une fonction de gain utilisée pour améliorer des données reposant sur la détermination de la présence dans les données de signaux vocaux d'information et de bruit ou uniquement de bruit. On réduit le délai en extrayant des paramètres de codage à l'aide de données incomplètement traitées.

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