G - Physics – 10 – L
Patent
G - Physics
10
L
354/52
G10L 3/00 (1995.01)
Patent
CA 1338251
The present invention relates to an apparatus for determining the voicing decision for non-training set speech signals. The apparatus is comprised of a unit which is responsive to the non-training set speech signals for sampling the speech signals to produce digital speech signals, to form frames of the digital non-training set speech signals, and to process each frame to generate a set of classifiers defining speech attributes. A unit is also provided for estimating statistical distributions for voiced and unvoiced frames without prior knowledge of the voicing decisions for past ones of the frames of digital non-training set speech. A unit is provided which is responsive to these statistical distributions for determining decision regions representing voiced and unvoiced digital non-training set speech. A unit is then provided which is responsive to the decision regions and a present one of the frames for making the voicing decisions. Finally, a unit is provided which is responsive to the determination of the voicing decision in the frame of the digital non-training set speech signals for transmitting a signal to a data unit for subsequent use in speech processing.
616983
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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