Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1984-11-09
1989-09-12
Harkcom, Gary V.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
381 43, G10L 702, G10L 708
Patent
active
048667773
ABSTRACT:
A polyphase digital filterbank extracts a spectral envelope composed of thirty-two bands, having uniform bandwidths, from a speech signal. The spectral envelope is then compressed into a predetermined number of bands having uniform bandwidths. Spectral energy features are extracted from the compressed envelope and are utilized to form templates representing the speech signal.
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Jaktdar Priyadarshan
Mulla Hoshang D.
Sutherland Douglas
Alcatel USA Corporation
Harkcom Gary V.
Merecki John A.
Van Der Sluys Peter C.
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