perceptual weigting

Started by tilak shetty in Speech Coding19 years ago 3 replies

hello friends, this is about PERCEPTUAL WEIGHTING in g729. i know that perceptual weigting is used for manipulate the noise...

hello friends, this is about PERCEPTUAL WEIGHTING in g729. i know that perceptual weigting is used for manipulate the noise floor with respect to the signal. can anyobody tell me how exactly it will manipulate the noise level. kindly solve my problem you


Perceptual Weighting Filter in AMR-WB

Started by #ARIJIT BISWAS# in Speech Coding13 years ago

Dear Members of the List: I have a question regarding the "perceptual weighting filter" used in the AMR-WB (also in the AMR-WB+) codec that is...

Dear Members of the List: I have a question regarding the "perceptual weighting filter" used in the AMR-WB (also in the AMR-WB+) codec that is standardized in 3GPP and ITU. Please check the 2002 Journal article from the developers of AMR-WB, where they present the perceptual filter (pages 8-10, and Figures 3 and 4). http://www.gel.usherbrooke.ca/audio/docs/IEEE2002_Bessette.pdf#search=%22pe...


On G.729 Perceptual weighting and Gain Quantisation

Started by Thenral p in Speech Coding17 years ago 1 reply

Hi all, I am working on G.729 and when going thru' the C code I came across the folowing: In perceptual weighting filter to find...

Hi all, I am working on G.729 and when going thru' the C code I came across the folowing: In perceptual weighting filter to find the value of gamma2(weighting parameter) the formula used is gamma2=1-6.0*pi*dmin whereas in the G.729 code it is given as gamma2=1-6.0*


Perceptual Weighting Filter

Started by Sameer Kibey in Speech Coding17 years ago 1 reply

Hello everyone! this is regarding the usage of the "perceptual weighting filter" to improve the quality of synthesised...

Hello everyone! this is regarding the usage of the "perceptual weighting filter" to improve the quality of synthesised speech.my query is referenced to the book "Digital Speech" by A.M.Kondoz the transfer function of the weighting filter, as


perceptual..

Started by Anonymous in Speech Coding15 years ago 2 replies

hi all, Can anyone tell me whatz the use of "PERCEPTUAL WEIGHTING FILTER" ? why its so necessary in speech coding?   ...

hi all, Can anyone tell me whatz the use of "PERCEPTUAL WEIGHTING FILTER" ? why its so necessary in speech coding?   thanx in advance. Mithun G N  


PESQ

Started by mouloud Djamah in Speech Coding11 years ago

Hi Someone to give me the link for dowloading the?perceptual evaluation of speech software (seee referance below). Thanks ?ITU, Perceptual...

Hi Someone to give me the link for dowloading the?perceptual evaluation of speech software (seee referance below). Thanks ?ITU, Perceptual Evaluation of Speech Quality (PESQ), an Objective Method for End-to-End Speech Quality Assessment of Narrow-Band Telephone Networks and Speech Codecs?ITU-T Recommend.