Paper Info
Title
Speech bandwidth extension based on in-band transmission of higher frequencies
Abstract
A new method for wideband speech transmission is proposed which is fully backwards compatible with narrowband telephone systems. For this purpose, a pitch-scaled version of the higher speech frequencies (4 - 6.4 kHz) is inserted into the previously “unused” 3.4 - 4 kHz frequency range of standard telephone speech. This operation is reverted at the decoder side. A consistently good wideband speech quality can be achieved, even after transmission over common codecs and codec tandems. The quality impact on the narrowband part of the signal is insignificant.
Year
DOI
Venue
2013
10.1109/ICASSP.2013.6639122
Acoustics, Speech and Signal Processing
Keywords
Field
DocType
speech codecs,speech coding,codec tandems,common codecs,decoder side,frequency 4 GHz to 6.4 GHz,in-band transmission,narrowband telephone systems,pitch-scaled version,speech bandwidth extension,speech quality,standard telephone speech,wideband speech transmission,pitch scaling,speech bandwidth extension,wideband speech transmission
Speech processing,Speech coding,Wideband audio,Adaptive Multi-Rate audio codec,Voice activity detection,Computer science,PSQM,Full Rate,Speech recognition,Codec2
Conference
ISSN
Citations 
PageRank 
1520-6149
3
0.39
References 
Authors
10
2
Name
Order
Citations
PageRank
B. Geiser112215.25
Peter Vary285275.52