DocumentCode
923178
Title
A speech/voiceband data discriminator
Author
Benvenuto, N.
Author_Institution
AT&T Bell Labs., Holmdel, NJ, USA
Volume
41
Issue
4
fYear
1993
fDate
4/1/1993 12:00:00 AM
Firstpage
539
Lastpage
543
Abstract
The problem of distinguishing speech from voiceband data is treated. A discrimination function based on the sign of the autocorrelation at lag two of the incoming signal and the second-order moment of the complex low-pass signal is presented. The algorithm has been applied to many types of voiceband data signals and, within a window of 32 ms, correctly classifies them. For the limited number of speech signals available, the amount of misclassification of speech as voiceband data was observed to be about 1%
Keywords
speech analysis and processing; algorithm; autocorrelation; complex low-pass signal; discrimination function; second-order moment; speech signals; speech/voiceband data discriminator; voiceband data signals; window; Autocorrelation; Degradation; Demodulation; Interpolation; Modems; Phase change materials; Phase shift keying; Societies; Speech processing; Telephony;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/26.223777
Filename
223777
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