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Hits 1.341 – 1.360 of 1.629
1341
Rule-Based Frequency Domain Speech Coding
McMillan, Vance M.
In: DTIC AND NTIS (1990)
Abstract:
A speech processing system is designed to simulate the transmission of speech signals using a speech coding scheme. The transmitter portion of the simulation extracts a minimized set of frequencies in Fourier space which represents the essence of each of the speech timeslices. These parameters are then adaptively quantized and transmitted to a receiver portion of the coding scheme. The receiver then generates an estimate of the original timeslice from the transmitted parameters using a sinusoidal speech model. After initial design, the thesis investigates how each of the design parameters affect the human perceived quality of speech. This is done with listening tests. The listening tests consist of having volunteers listen to a series of speech reconstructions. Each reconstruction is the result of the coding scheme acting on the same speech input file with the design parameters varied. The design parameters which are varied are: number of frequencies used in the sinusoidal speech model for reconstruction, number of bits to encode amplitude information, and number of bits used to code phase information. The final design parameters for the coding scheme were selected based on the results of the listening tests. Post design listening tests showed that the system was capable of 4800 bps speech transmission with a quality rating of five on a scale from zero (not understandable) to ten (sounds just like original speech).
Keyword:
*AMPLITUDE
;
*RULE BASED ENCODING
;
*SPEECH ENCODING
;
*SPEECH PROCESSING
;
*SPEECH RECORDING
;
C LANGUAGE
;
CODING
;
Computer Programming and Software
;
FILES(RECORDS)
;
FREQUENCY
;
FREQUENCY CODING
;
HEARING
;
INPUT
;
PARAMETERS
;
PHASE CODING
;
PROCESSING
;
PROGRAM LISTING
;
QUALITY
;
RATINGS
;
Recording and Playback Devices
;
SIMULATION
;
SPEECH
;
SPEECH PLAYBACK
;
SPEECH TRANSMISSION
;
TEST AND EVALUATION
;
THESES
;
Voice Communications
URL:
http://www.dtic.mil/docs/citations/ADA230774
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA230774
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1342
Language of testing effects for academic achievement of French immersion students
Samuel, Michele J.
. - : University of Alberta. Department of Educational Psychology., 1990
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1343
Das individuelle Textverständnis griechischer Schüler mit Deutsch als Zweitsprache : eine qualitative Analyse von Ergebnissen aus Cloze- und C-Test-Verfahren
Göth, Gabriele
. - 1989
BLLDB
UB Frankfurt Linguistik
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1344
Effects of L1 orthographic representation on L2 phonological coding strategies
Koda, Keiko
In:
Journal of psycholinguistic research. - New York, NY ; London [u.a.] : Springer
18 (1989) 2, 201-222
BLLDB
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1345
Textual sequence and second-language comprehension
Jonz, Jan
In:
Language learning. - Hoboken, NJ : Wiley
39 (1989) 2, 207-250
BLLDB
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1346
The underlying factor structure of L2 cloze test performance in Francophone, university-level students : causal modelling as an approach to construct validation
Turner, Carolyn E.
In:
Language testing. - London : Sage
6 (1989) 2, 172-197
BLLDB
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1347
Discourse structure and comprehension
Richardson, Ian M.
In:
System. - Amsterdam : Elsevier
17 (1989) 3, 339-345
BLLDB
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1348
Didactic aspects : aspects of text comprehension, syntactic structures and translation
Gerbert, Manfred
(Mitarb.);
Laufer, Batia
(Mitarb.);
Bensoussan, Marsha
(Mitarb.)...
In:
Special language. - Clevedon [u.a.] : Multilingual Matters
(1989), 309-396
BLLDB
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1349
ASAT written test : a positive hidden agenda
Vieth, Errol, 1950-
In: Vieth, E 1989, 'ASAT written test: a positive hidden agenda', Words' Worth: E.T.A.Q. Journal, vol. 22, no. 1, pp. 53-58. (1989)
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1350
Correlation of Preschoolers' Performance on Three Language Comprehension Tests
Nordlund, Alissa Clare
In: Dissertations and Theses (1989)
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1351
Knowledge and Ability Factors Underlying Simple Learning by Accretion
Tirre, William C.
In: DTIC AND NTIS (1989)
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1352
Knowledge of Connectors as Cohesion in Text: A Comparative Study of Native English and ESL (English as a Second Language) Speakers
Goldman, Susan R.
;
Murray, John
In: DTIC AND NTIS (1989)
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1353
Knowledge Based Text Generation
Maybury, Mark T.
In: DTIC AND NTIS (1989)
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1354
Integrating Syntax, Semantics,and Discourse DARPA (Defense Advanced Research Projects Agency) Natural Language Understanding Program
Hirschman, Lynette
In: DTIC AND NTIS (1989)
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1355
Integration of Speech and Natural Language
Boisen, S.
;
Chow, Y.
;
Haas, A.
...
In: DTIC AND NTIS (1989)
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1356
Coordinating Text and Graphics in Explanation Generation
Feiner, Steven K.
;
McKeown, Kathleen R.
In: DTIC (1989)
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1357
Combining Multiple Knowledge Sources for Continuous Speech Recognition
Kimball, O.
;
Derr, A.
;
Chow, Y-L.
...
In: DTIC AND NTIS (1989)
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1358
Workshop on the Evaluation of Natural Language Processing Systems Held in Wayne, Pennsylvania on December 7-9, 1988
Palmer, Martha
;
Finin, Tim
;
Walter, Sharon M.
In: DTIC AND NTIS (1989)
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1359
Reasoning and Comprehension Processes of Linguistic Minority Persons Learning from Text
Goldman, Susan R.
;
Duran, Richard P.
;
Murray, John
...
In: DTIC AND NTIS (1989)
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1360
Natural Language for Problem Solving Systems
McKeown, Kathleen R.
In: DTIC AND NTIS (1989)
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