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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 1 of 1 1 Speech Analysis and Synthesis Based on Pitch-Synchronous Segmentation of the Speech Waveform. Kang, George S.; Fransen, Lawrence J. In: DTIC AND NTIS (1994) Abstract: This report describes a new speech analysis/synthesis method. This new technique does not attempt to model the human speech production mechanism. Instead, we represent the speech waveform directly in terms of the speech waveform defined in a pitch period. A significant merit of this approach is the complete elimination of pitch interference because each pitch-synchronously segmented waveform does not include a waveform discontinuity. One application of this new speech analysis/synthesis method is the alteration of speech characteristics directly on raw speech. With the increased use of man-made speech in tactical voice message systems and virtual reality environments, such a speech generation tool is highly desirable. Another application is speech encoding operation at low data rates (2400 b/s or less). According to speech intelligibility tests, our new 2400 b/s encoder outperforms the current 2400-b/s LPC. This is also true in noisy environments. Because most tactical platforms are noisy (e.g., helicopter, high-performance aircraft, tank, destroyer), our 2400-b/s speech encoding technique will make tactical voice communication more effective; it will become an indispensable capability for future C4I. Keyword: *SPEECH ANALYSIS; *VOICE COMMUNICATIONS; 14; 33904N; 61153N; C4I(COMMAND CONTROL COMMUNICATIONS COMPUTER AND INTELLIGENCE); CODING; Command; COMMAND CONTROL COMMUNICATIONS; Control and Communications Systems; DATA MANAGEMENT; DATA RATE; INTELLIGIBILITY; INTERFERENCE; MESSAGE PROCESSING; MILITARY APPLICATIONS; PATTERN RECOGNITION; SOUND PITCH; SPEECH TRANSMISSION; SYNTHESIS; TACTICAL COMMUNICATIONS; TEST AND EVALUATION; VOCODERS; Voice Communications; WAVEFORMS URL: http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA288824 http://www.dtic.mil/docs/citations/ADA288824 BASE Hide details

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