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Study of Discussion Record Analysis Using Temporal Data Crystallization and Its Application to TV Scene Analysis
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In: DTIC (2015)
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| 3 |
Computational Modeling of Emotions and Affect in Social-Cultural Interaction
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In: DTIC (2013)
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A Submodularity Framework for Data Subset Selection
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In: DTIC (2013)
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| 5 |
Speech Synthesis Using Perceptually Motivated Features
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In: DTIC (2012)
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| 6 |
Machine Recognition vs Human Recognition of Voices
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In: DTIC (2012)
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Compressed Domain Automatic Level Control Based on ITU-T G.722.2
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In: DTIC (2012)
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| 8 |
USSS-MITLL 2010 Human Assisted Speaker Recognition
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In: DTIC (2010)
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| 9 |
Multitalker Speech Perception with Ideal Time-Frequency Segregation: Effects of Voice Characteristics and Number of Talkers
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In: DTIC (2009)
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Abstract:
When a target voice is masked by an increasingly similar masker voice, increases in energetic masking are likely to occur due to increased spectro-temporal overlap in the competing speech waveforms. However, the impact of this increase may be obscured by informational masking effects related to the increased confusability of the target and masking utterances. In this study, the effects of target-masker similarity and the number of competing talkers on the energetic component of speech-on-speech masking were measured with an ideal time-frequency segregation ITFS technique that retained all the target-dominated time-frequency regions of a multitalker mixture but eliminated all the time-frequency regions dominated by the maskers. The results show that target-masker similarity has a small but systematic impact on energetic masking, with roughly a 1 dB release from masking for same-sex maskers versus same-talker maskers and roughly an additional 1 dB release from masking for different-sex masking voices. The results of a second experiment measuring ITFS performance with up to 18 interfering talkers indicate that energetic masking increased systematically with the number of competing talkers. These results suggest that energetic masking differences related to target-masker similarity have a much smaller impact on multitalker listening performance than energetic masking effects related to the number of competing talkers in the stimulus and non-energetic masking effects related to the confusability of the target and masking voices. ; Published in the Journal of the Acoustical Society of America v125 n6 p4006-4022, Jun 2009.
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Keyword:
*AUDITORY PERCEPTION; *SPEECH-ON-SPEECH MASKING; *VOICE COMMUNICATIONS; Cybernetics; HEARING; HUMANS; MASKING; MULTIPLE OPERATION; OBSCURATION; REPRINTS; SPEECH; TARGETS; TIME; Voice Communications; WAVEFORMS
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URL: http://www.dtic.mil/docs/citations/ADA507042
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA507042
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| 10 |
Pictures from Words, Pictures from Text: Constructing Pictorial Representations of Meaning from Text
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In: DTIC (2009)
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| 11 |
The Multi-Session Audio Research Project (MARP) Corpus: Goals, Design and Initial Findings
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In: DTIC (2009)
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| 12 |
Iterated Class-Specific Subspaces for Speaker-Dependent Phoneme Classification
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In: DTIC (2008)
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| 13 |
Multimodal Meeting Capture and Understanding with the CALO Meeting Assistant
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In: DTIC (2007)
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| 14 |
Error Awareness and Recovery in Conversational Spoken Language Interfaces
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In: DTIC (2007)
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| 15 |
Using Prosody for Automatic Sentence Segmentation of Multi-Party Meetings
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In: DTIC (2006)
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| 16 |
Investigation on Mandarin Broadcast News Speech Recognition
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In: DTIC (2006)
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| 18 |
Objective Measurement of the Speech Transmission Quality of Vocoders by Means of the Speech Transmission Index
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In: DTIC (2005)
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| 19 |
Cognitive Tools for Humanoid Robots in Space
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In: DTIC AND NTIS (2004)
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| 20 |
Towards a Warfighter's Associate: Eliminating the Operator Control Unit
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In: DTIC (2004)
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