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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 – 17 of 17 1 Performance Assessments of Two-Way, Free-Form, Speech-to-Speech Translation Systems for Tactical Use Weiss, Brian A.; Schlenoff, Craig I. In: DTIC (2011) BASE Show details 2 Evaluation of Speech Synthesis Systems using the Speech Reception Threshold Methodology van Leeuwen, David A.; van Balken, Johan In: DTIC (2005) Abstract: The intelligibility of speech sysnthesis systems that are available nowadays is usually high enough to enable comparisons between different synthesis systems based on the speech quality. However, in some situations, like a civil aircraft cockpit, the acoustic environment may be such that intelligibility is a discriminating factor between systems. In this paper we propose a methodology for comparing speech synthesis systems based on the Speech Reception Threshold (SRT). With this method the signal-to-noise ratio is found at which 50% intelligibility of redundant sentences is reached. A system with a lower SRT value is said to be more robust against masking noise. We have compared 5 commercial speech synthesis systems (4 male voices, 5 female voices) in an SRT experiment using a masking noise that was spectrally equivalent to cockpit noise. SRT values range from -4.1dB to 1.1dB. An ANOVA revealed that two of the nine systems had a significantly lower SRT than the rest. There was also an effect of the test subject, which is remarkable because the SRT has usually small variability over listeners. ; See also ADM001856. Presented at the New Directions for Improving Audio Effectiveness (Nouvelles orientations pour l'amelioration des techniques audio). The original document contains color images. Published in RTO-MP-HFM-123. Keyword: *AUDITORY PERCEPTION; *SIGNAL TO NOISE RATIO; *SPEECH RECEPTIONS; *SPEECH RECOGNITION; *THRESHOLD EFFECTS; ACOUSTICS; Anatomy and Physiology; CIVIL AVIATION; COCKPITS; COMPONENT REPORTS; COTS(COMMERCIAL OFF THE SHELF); DISCRIMINATION; DVO(DIRECT VOICE OUTPUT); ENVIRONMENTS; FOREIGN REPORTS; INTELLIGIBILITY; MASKING; METHODOLOGY; NATO FURNISHED; NETHERLANDS; NOISE(SOUND); QUALITY; RECEPTION; REDUNDANCY; SYMPOSIA; SYNTHESIS; TEST AND EVALUATION; VALUE; WORDS(LANGUAGE) URL: http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA454411 http://www.dtic.mil/docs/citations/ADA454411 BASE Hide details 3 Minimum Bayes-Risk Decoding for Statistical Machine Translation Kumar, Shankar; Byrne, William In: DTIC (2004) BASE Show details 4 Conversational Telephone Speech Corpus Collection for the NIST Speaker Recognition Evaluation 2004 Martin, Alvin; Miller, David; Przybocki, Mark... In: DTIC (2004) BASE Show details 5 The Pragmatics of Taking a Spoken Language System Out of the Laboratory Daniels, Jody J.; Hastie, Helen W. In: DTIC (2003) BASE Show details 6 Speech Intelligibility of Native and Non-Native Speech van Wijngaarden, Sander J. In: DTIC (2000) BASE Show details 7 Adaptive Statistical Language Modeling; A Maximum Entropy Approach Rosenfeld, Ronald In: DTIC AND NTIS (1994) BASE Show details 8 Comparative Experiments on Large Vocabulary Speech Recognition Schwartz, Richard; Anastasakos, Tasos; Kubala, Francis... In: DTIC (1993) BASE Show details 9 Dialog Structure and Plan Recognition in Spontaneous Spoken Dialog Young, Sheryl R. In: DTIC AND NTIS (1993) BASE Show details 10 Talking to InterFIS: Adding Speech Input to a Natural Language Interface Everett, Stephanie S.; Wauchope, Kenneth; Perzanowski, Dennis In: DTIC AND NTIS (1992) BASE Show details 11 A Practical Methodology for the Evaluation of Spoken Language Systems Boisen, Sean; Bates, Madeleine In: DTIC (1992) BASE Show details 12 Subject-Based Evaluation Measures for Interactive Spoken Language Systems Price, Patti; Hirschman, Lynette; Shrlberg, Elizabeth... In: DTIC (1992) BASE Show details 13 Development of a Spoken Language System Austin, S.; Ayuso, D.; Barry, C.... In: DTIC AND NTIS (1992) BASE Show details 14 BBN HARC and DELPHI Results on the ATIS Benchmarks - February 1991 Austin, S.; Ayuso, D.; Bates, M.... In: DTIC (1991) BASE Show details 15 Augmented Role Filling Capabilities for Semantic Interpretation of Spoken Language Norton, Lewis; Linebarger, Marcia; Dahl, Deborah... In: DTIC (1991) BASE Show details 16 Connected Digit Recognition in a Multilingual Environment Moore, R. K. In: DTIC AND NTIS (1988) BASE Show details 17 Speaker-Independent Connected Speech. Graff,David E.; Lundgren,William I. In: DTIC AND NTIS (1987) BASE Show details

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