G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 19/00 (2006.01) G10L 19/08 (2006.01) G10L 19/14 (2006.01)
Patent
CA 2340160
In producing an approximation of an original speech signal from encoded information about the original speech signal, current parameters (EnPar(i)) associated with a current segment of the original speech signal are determined from the encoded information. Reproduction of a noise component of the original speech signal is improved by using at least one of the current parameters and corresponding previous parameters respectively associated with previous segments of the original speech signal (31, 37, 39) to produce a modified parameter (EnPar(i)mod). The modified parameter is then used (25, 40) to produce an approximation of the current segment of the original speech signal.
Pour produire une approximation d'un signal vocal d'origine à partir d'informations codées relatives à ce signal, on détermine, à partir des informations codées, des paramètres courants (EnPar(i)) associés à un segment courant du signal vocal d'origine. On améliore la reproduction de la composante bruit du signal vocal d'origine en utilisant l'un au moins des paramètres courants ainsi que les paramètres précédents correspondants associés aux segments précédents du signal vocal (31, 37, 39) d'origine pour produire un paramètre modifié (EnPar(i)mod). On utilise ensuite ce paramètre modifié (25, 40) pour produire une approximation du segment courant du signal vocal d'origine.
Johansson Ingemar
Svedberg Jonas
Uvliden Anders
Ericsson Canada Patent Group
Telefonaktiebolaget Lm Ericsson
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