Paper Info
Title
Artificial bandwidth extension of speech supported by watermark-transmitted side information
Abstract
In recent years research in the area of artificial bandwidth ex- tension (BWE) of speech signals has made significant progress. The intention of BWE is to produce wideband speech with a cut-off frequency of for instance 7 kHz from a narrowband ver- sion (e.g., with telephone bandwidth, i.e., 300 Hz − 3.4 kHz). The respective algorithms are based on the estimation of pa- rameters of a source model for speech production given the knowledge of thenarrowband signal. Atheoretical performance bound on this estimation has been formulated in (1). In or- der to overcome this boundary we propose the transmission of (compact) side information which can support the parameter es- timation. Since a common additional channel would conflict with the requirement of backwards compatibility in narrowband communication systems, the side information is embedded as digital watermark into the narrowband speech.
Year
Venue
Keywords
2005
INTERSPEECH
digital watermark,communication system,speech production
Field
DocType
Citations 
Speech processing,Narrowband,Wideband audio,Voice activity detection,Computer science,Bandwidth extension,Communication channel,Watermark,Speech recognition,Bandwidth (signal processing)
Conference
18
PageRank 
References 
Authors
1.40
4
3
Name
Order
Citations
PageRank
B. Geiser112215.25
Peter Jax215919.11
Peter Vary3222.68