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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 – 10 of 10 1 BBN BYBLOS and HARC February 1992 ATIS Benchmark Results Kubala, Francis; Barry, Chris; Bates, Madeleine... In: DTIC (1992) BASE Show details 2 Research in Speech Understanding Schwartz, Richard; Makhoul, John; Roucos, Salim... In: DTIC AND NTIS (1982) BASE Show details 3 Research on Narrowband Communications. Roucos,Salim; Schwartz,Richard; Makhoul,John In: DTIC AND NTIS (1982) BASE Show details 4 Research on Narrowband Communications Makhoul, John; Roukos, Salim; Schwartz, Richard In: DTIC AND NTIS (1981) BASE Show details 5 Research on Narrowband Communications Makhoul, John; Krasner, Michael; Roukos, Salim... In: DTIC AND NTIS (1981) BASE Show details 6 Research on Narrowband Communications Makhoul, John; Roukos, Salim; Krasner, Micheal... In: DTIC AND NTIS (1981) BASE Show details 7 Speech Compression and Synthesis Berouti, Michael; Klovstad, John; Makhoul, John... In: DTIC AND NTIS (1980) BASE Show details 8 Research on Narrowband Communications Makhoul, John; Roukos, Salim; Schwartz, Richard In: DTIC AND NTIS (1980) BASE Show details 9 Speech Compression and Synthesis Berouti, Michael; Makoul, John; Schwartz, Richard; Sorensen, John In: DTIC AND NTIS (1980) Abstract: This report concludes our work for the past two years on speech compression and synthesis. A real-time variable-frame-rate LPC vocoder was implemented operating at an average rate of 2000 bits/s. We also tested our mixed-source model as part of the vocoder. To improve the reliability of the extraction of LPC parameters, we implemented and tested a range of adaptive lattice and autocorrelation algorithms. For data rates above 5000 bits/s, we developed and tested a new high-frequency regeneration technique, spectral duplication, which reduces the roughness in the synthesized speech. As the first part of our effort towards a very-low-rate (VLR) vocoder, we implemented a phonetic synthesis program that would be compatible with our initial design for a phonetic recognition program. We also recorded and partially labeled a large data base of diphone templates. During the second year we continued our work toward a VLR vocoder, and also developed a multirate embedded-coding speech compression program that could transmit speech at rates varying from 9600 to 2400 b/s. The phonetic synthesis program and the labeling of the diphone template network were completed. There are currently 2845 diphone templates. We also implemented an initial version of a phonetic recognizer based on a network representation of diphone templates. The recognizer allows for incremental training of the network by modification of existing templates or addition of new templates. ; Sponsored in part by DARPA. Keyword: *SPEECH COMPRESSION; *VOCODERS; ADAPTIVE FILTERS; AUTOCORRELATION; CODING; DATA RATE; DIGITAL FILTERS; DIPHONES; HIGH RATE; LINEAR SYSTEMS; LPC(LINEAR PREDICTIVE CODING); Non-radio Communications; PHONETICS; REAL TIME; RELIABILITY; SPEECH; SPEECH SYNTHESIS; SYNTHESIS; TRANSFORMATIONS(MATHEMATICS) URL: http://www.dtic.mil/docs/citations/ADA092578 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA092578 BASE Hide details 10 Speech Compression and Synthesis Berouti, Michael; Cosell, Lynn; Klovstad, John... In: DTIC AND NTIS (1979) BASE Show details

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