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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 – 16 of 16 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) BASE Show details 2 Template Based Low Data Rate Speech Encoder Fransen, Lawrence In: DTIC AND NTIS (1993) Abstract: The 2400-b/s linear predictive coder (LPC) is currently being widely deployed to support tactical voice communication over narrowband channels. However, there is a need for lower-data-rate voice encoders for special applications: improved performance in high bit-error conditions, low- probability-of-intercept (LPI) voice communication, and narrowband integrated voice/data systems. An 800-b/s voice encoding algorithm is presented which is an extension of the 2400-b/s LPC. To construct template tables, speech samples of 420 speakers uttering 8 sentences each were excerpted from the Texas Instrument - Massachusetts Institute of Technology (TIMIT) Acoustic-Phonetic Speech Data Base. Speech intelligibility of the 800-b/s voice encoding algorithm measured by the diagnostic rhyme test (DRT) is 91.5 for three male speakers. This score compares favorably with the 2400-b/s LPC of a few years ago. Keyword: *CODERS; *TACTICAL COMMUNICATIONS; *TEMPLATES; *VOICE COMMUNICATIONS; ACOUSTICS; ALGORITHMS; CHANNELS; CODING; DATA BASES; DATA RATE; ERRORS; INTELLIGIBILITY; LOW RATE; MASSACHUSETTS; MULTIPLEXING; NARROWBAND; PARAMETERS; PHONETICS; PROBABILITY; QUANTIZATION; RATES; REAL TIME; SPEECH; SPEECH ANALYSIS; SYNTHESIS; TEST AND EVALUATION; Voice Communications URL: http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA270900 http://www.dtic.mil/docs/citations/ADA270900 BASE Hide details 3 Vocabulary Synthesis Based on Line Spectrum Pairs Everett, Stephanie S. In: DTIC AND NTIS (1989) BASE Show details 4 Evaluating the Performance of the LPC (Linear Predictive Coding) 2.4 kbps (Kilobits per second) Processor with Bit Errors Using a Sentence Verification Task. Schmidt-Nielsen, Astrid; Kallman, Howard J In: DTIC AND NTIS (1987) BASE Show details 5 Intelligibility of ICAO (International Civil Aviation Organization) Spelling Alphabet Words and Digits Using Severely Degraded Speech Communication Systems. Part 1. Narrowband Digital Speech. Schmidt-Nielsen,Astrid In: DTIC AND NTIS (1987) BASE Show details 6 Activities as an ONT Postdoctoral Fellow. Kallman, Howard J In: DTIC AND NTIS (1987) BASE Show details 7 Parameters for Automatic Speaker Recognition over LPC (Linear Predictive-Coding) Systems. Everett,Stephanie S. In: DTIC AND NTIS (1986) BASE Show details 8 Speaker Recognition Using Phoneme Specific Sentences. Schmidt-Nielsen,Astrid In: DTIC AND NTIS (1986) BASE Show details 9 Automatic Speaker Recognition over Military Communication Systems. A Feasibility Evaluation. Everett,S S In: DTIC AND NTIS (1985) BASE Show details 10 The Effect of LPC (Linear Predictive Coding) Processing on the Recognition of Unfamiliar Speakers. Schmidt-Nielsen,Astrid; Stern,Karen R In: DTIC AND NTIS (1985) BASE Show details 11 Automatic Speaker Recognition for Military Applications: Applications Survey and Operational Requirements. Everett,S S In: DTIC AND NTIS (1985) BASE Show details 12 Identification as a Function of Familiarity for Known Voices Talking Over an Unprocessed Channel and an LPC (Linear Predictive Coding) Voice Processor. Schmidt-Nielsen,A; Stern,K R In: DTIC AND NTIS (1984) BASE Show details 13 Isolated-Word Speech Recognition Using Multi-Section Vector Quantization Code Books. Burton,D K; Shore,J E; Buck,J T In: DTIC AND NTIS (1984) BASE Show details 14 Controlled Test Procedures for Using Intervocalic Consonants to Assess Speech Intelligibility: A Feasibility Study. Schmidt-Nielsen,Astrid In: DTIC AND NTIS (1983) BASE Show details 15 Automatic Translation of English Text to Phonetics by Means of Letter- to-Sound Rules Elovitz, Honey S.; Johnson, Rodney W.; McHugh, Astrid... In: DTIC AND NTIS (1976) BASE Show details 16 PITCH VARIATIONS IN VOCODED VOICE Jewett, W. M. In: DTIC AND NTIS (1966) BASE Show details

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