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UMass/Hughes: Description of the Circus System Used for MUC-5
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In: DTIC (1993)
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82 |
Institute for the Study of Human Capabilities
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In: DTIC AND NTIS (1993)
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83 |
GE-CMU: Description of the Shogun System Used for MUC-5
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In: DTIC (1993)
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86 |
Tipster Shogun System (Joint GE-CMU): MUC-4 Test Results and Analysis
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In: DTIC (1992)
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87 |
The Cognitive, Perceptual, and Neural Bases of Skilled Performance.
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In: DTIC AND NTIS (1992)
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88 |
Efficient, High-Performance Algorithms for N-Best Search
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In: DTIC (1990)
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89 |
The Effects of Head-Up Display (HUD) Pitch Ladder Articulation, Pitch Number Location and Horizon Line Length on Unusual Attitude Recoveries for the F-16
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In: DTIC AND NTIS (1990)
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90 |
ASR-9 Weather Channel Test Report, Executive Summary
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In: DTIC AND NTIS (1989)
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91 |
Performance Analysis of Large Adaptive Sidelobe Canceller Arrays with Reused Elements
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In: DTIC AND NTIS (1989)
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93 |
Effects of Voice Coding and Speech Rate on a Synthetic Speech Display in a Telephone Information System
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In: DTIC AND NTIS (1988)
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94 |
A Model for Integrating a Job-Aiding, Training, and Performance Assessment System--a Preliminary Concept Paper.
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In: DTIC AND NTIS (1988)
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95 |
Neuro-Linguistic Programming: Human Technology for Today's Air Force.
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In: DTIC AND NTIS (1986)
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96 |
Performance Improvements of the Phoneme Recognition Algorithm.
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In: DTIC AND NTIS (1984)
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Abstract:
An analysis of speech is made by comparing single, two and three time slice phonemes to five time slice phonemes (.08 sec/time slice). All phonemes created from the same speech with the single, two and three time slice phonemes created from portions of the five time slice phonemes. It was found that the single time slice phonemes compared favorably with the five time slice phonemes in recognizing speech only if the frequency components remained relatively constant over a period of time, such as the vowel and nasal sounds. The two time slice phonemes showed results that began to duplicate those of the five time slice phonemes, but still had inconsistent results identifying fricative sounds. Three time slice phonemes results showed a closer correlation with the results of the five time slice phonemes than those of the one and two time slice phonemes. All results were obtained using a 64 point sampled, Hamming windowed, Discrete Fourier Transform. The recognition results for each time slice of speech, using various length phonemes, are tabulated and the results are used to re-synthesize the original speech. This was done by using digitized speech composed of the middle time slices from the 71 five time slice phonemes. Results indicated that the synthesized speech was understandable when the recognition results successfully identified the proper phoneme for approximately 4 consecutive time slices. An extraneous phoneme choice in a consecutive grouping of a phoneme choice did not seriously degrade the output since it accounted for only an .08 second time slice. (Author)
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Keyword:
*PHONEMES; *SPEECH RECOGNITION; ALGORITHMS; DISCRETE FOURIER TRANSFORMS; Human Factors Engineering & Man Machine System; MAN MACHINE SYSTEMS; PERFORMANCE(ENGINEERING); TIME; Voice Communications; VOWELS
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URL: http://www.dtic.mil/docs/citations/ADA144562 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA144562
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97 |
Steps Towards Parsing of Query Sequences to a Database
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In: DTIC AND NTIS (1984)
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98 |
Perception of Acoustic Transients.
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In: DTIC AND NTIS (1984)
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99 |
Interaction of Human Cognitive Models and Computer-Based Models in Supervisory Control
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In: DTIC AND NTIS (1984)
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100 |
Introducing ASK, A Simple Knowledgeable System
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In: DTIC AND NTIS (1983)
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