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An assessment of computer model tech...

Kim, Hyeong-seok.

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An assessment of computer model techniques to predict quantitative and qualitative measures of speech perception in university classrooms for varying room sizes and noise levels.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	An assessment of computer model techniques to predict quantitative and qualitative measures of speech perception in university classrooms for varying room sizes and noise levels./
作者:	Kim, Hyeong-seok.
面頁冊數:	138 p.
附註:	Source: Dissertation Abstracts International, Volume: 65-05, Section: A, page: 1567.
Contained By:	Dissertation Abstracts International65-05A.
標題:	Architecture. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3135191
ISBN:	0496824155

An assessment of computer model techniques to predict quantitative and qualitative measures of speech perception in university classrooms for varying room sizes and noise levels.
Kim, Hyeong-seok.

An assessment of computer model techniques to predict quantitative and qualitative measures of speech perception in university classrooms for varying room sizes and noise levels. - 138 p.

Source: Dissertation Abstracts International, Volume: 65-05, Section: A, page: 1567.

Thesis (Ph.D.)--University of Florida, 2004.

The objective of this dissertation was to assess the use of computer modeling techniques to predict quantitative and qualitative measures of speech perception in classrooms under realistic conditions of background noise and reverberation. Secondary objectives included (1) finding relationships among acoustical measurements made in actual classrooms and in the computer models of the actual rooms as a prediction tool of 15 acoustic parameters at the design stage of projects and (2) finding relationships among speech perception scores and 15 acoustic parameters to determine the best predictors of speech perception in actual classroom conditions.

ISBN: 0496824155Subjects--Topical Terms:

523581
Architecture.

An assessment of computer model techniques to predict quantitative and qualitative measures of speech perception in university classrooms for varying room sizes and noise levels.
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245 1 3 $a An assessment of computer model techniques to predict quantitative and qualitative measures of speech perception in university classrooms for varying room sizes and noise levels.
300 $a 138 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-05, Section: A, page: 1567.
500 $a Chair: Gary W. Siebein.
502 $a Thesis (Ph.D.)--University of Florida, 2004.
520 $a The objective of this dissertation was to assess the use of computer modeling techniques to predict quantitative and qualitative measures of speech perception in classrooms under realistic conditions of background noise and reverberation. Secondary objectives included (1) finding relationships among acoustical measurements made in actual classrooms and in the computer models of the actual rooms as a prediction tool of 15 acoustic parameters at the design stage of projects and (2) finding relationships among speech perception scores and 15 acoustic parameters to determine the best predictors of speech perception in actual classroom conditions.
520 $a Fifteen types of acoustical measurements were made in three actual classrooms with reverberation times of 0.5, 1.3, and 5.1 seconds. Speech perception tests using a Modified Rhyme Test list were also given to 22 subject in each room with five noise conditions of signal-to-noise ratios of 31, 24, 15, 0, -10. Computer models of the rooms were constructed using a commercially available computer model software program. The 15 acoustical measurements were made at 6 or 9 locations in the model rooms. Impulse responses obtained in the computer models of the rooms were convolved with the anechoically recorded speech tests used in the full size rooms to produce a compact disk with the MRT lists with the acoustical response of the computer model rooms. Speech perception tests using this as source material were given to the subjects over loudspeaker in an acoustic test booth.
520 $a The results of the study showed correlations (R2) of between acoustical measures made in the full size classrooms and the computer models of the classrooms of 0.92 to 0.99 with standard errors of 0.033 to 7.311.
520 $a Comparisons between speech perception scores tested in the rooms and acoustical measurements made in the rooms and in the computer models of the classrooms showed that the measures have similar prediction accuracy with other studies in the literatures.
520 $a The computer models can accurately predict both quantitative and qualitative acoustical measures of speech intelligibility. This means that computer models can be used as a design tool during the early stage of a project.
590 $a School code: 0070.
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