Abstract:
A comfort noise controller (50) for generating CN (Comfort Noise) control parameters is described. A buffer (200) of a predetermined size is configured to store CN parameters for SID (Silence Insertion Descriptor) frames and active hangover frames. A subset selector (50A) is configured to determine a CN parameter subset relevant for SID frames based on the age of the stored CN parameters and on residual energies. A comfort noise control parameter extractor (50B) is configured to use the determined CN parameter subset to determine the CN control parameters for a first SID frame following an active signal frame.
Abstract:
A method for increasing stability of an inter-channel time difference (ICTD) parameter in parametric audio coding, wherein a multi-channel audio input signal comprising at least two channels is received. The method comprises obtaining an ICTD estimate,
Abstract:
A method for increasing stability of an inter-channel time difference (ICTD) parameter in parametric audio coding, wherein a multi-channel audio input signal comprising at least two channels is received. The method comprises obtaining an ICTD estimate,
Abstract:
A comfort noise controller (50) for generating CN (Comfort Noise) control parameters is described. A buffer (200) of a predetermined size is configured to store CN parameters for SID (Silence Insertion Descriptor) frames and active hangover frames. A subset selector (50A) is configured to determine a CN parameter subset relevant for SID frames based on the age of the stored CN parameters and on residual energies. A comfort noise control parameter extractor (50B) is configured to use the determined CN parameter subset to determine the CN control parameters for a first SID frame following an active signal frame.
Abstract:
A comfort noise controller (50) for generating CN (Comfort Noise) control parameters is described. A buffer (200) of a predetermined size is configured to store CN parameters for SID (Silence Insertion Descriptor) frames and active hangover frames. A subset selector (50A) is configured to determine a CN parameter subset relevant for SID frames based on the age of the stored CN parameters and on residual energies. A comfort noise control parameter extractor (50B) is configured to use the determined CN parameter subset to determine the CN control parameters for a first SID frame following an active signal frame.
Abstract:
L'invention concerne un dispositif de commande de bruit de confort (50) servant à générer des paramètres de commande cn (bruit de confort). Un tampon (200) d'une taille prédéterminée est configuré pour stocker des paramètres cn pour des trames sid (descripteur d'insertion de silence) et des trames de maintien actif. Un sélecteur de sous-ensemble (50a) est configuré pour déterminer un sous-ensemble de paramètres cn pertinent pour des trames sid sur la base de l'âge des paramètres cn stockés et d'énergies résiduelles. Un extracteur de paramètres de commande de bruit de confort (50b) est configuré pour utiliser le sous-ensemble de paramètres cn déterminé afin de déterminer les paramètres de commande cn pour une première trame sid suivant une trame de signal actif.