DocumentCode :
2602554
Title :
A noise annoys an oyster: evaluating the subjective effectiveness of single-input noise reduction techniques
Author :
Thorpe, Leigh A.
Author_Institution :
Nortel, Ottawa, Ont., Canada
fYear :
1997
fDate :
7-10 Sep 1997
Firstpage :
87
Lastpage :
88
Abstract :
Single-input noise reduction techniques show enormous potential for improving the quality of signals that originate in noisy environments or that become mixed with noise along the way. These techniques are of particular interest to developers of speech compression codecs since the quality of noise processed through the codec is often a limiting factor for codec performance. This paper considers the assessment of the subjective performance of noise reduction (NR) techniques for telephony applications. Parameters of interest include the selection of the source material (such as noise type and level), voice characteristics, input impairments, the presence of other DSP processing on the channel, and the choice of test procedure. Some results from absolute category rating tests are presented, showing the subjective improvement found with NR techniques based on spectral subtraction
Keywords :
acoustic noise; acoustic signal processing; noise abatement; speech codecs; speech coding; speech processing; telephony; DSP processing; absolute category rating tests; acoustic noise; codec performance; input impairments; noise level; noise type; noisy environments; signal quality improvement; single-input noise reduction techniques; source material selection; spectral subtraction; speech compression codecs; subjective effectiveness; subjective performance; telephony applications; test procedure; voice characteristics; Digital signal processing; Limiting; Materials testing; Noise level; Noise reduction; Speech codecs; Speech enhancement; Speech processing; Telephony; Working environment noise;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Speech Coding For Telecommunications Proceeding, 1997, 1997 IEEE Workshop on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-4073-6
Type :
conf
DOI :
10.1109/SCFT.1997.623909
Filename :
623909
Link To Document :
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