Reducing Reflected Sound – The level of reflected sound and the reverberation time can both be reduced by adding sound absorbing material to a room....
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Meeting ANSI Standard S12.60 Requirements
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8.1 Objective
Fifty-nine adult listeners (49 with hearing loss and 10 without) listened binaurally to sentence materials that were subjected to three different types of distortion; reverberation and background...
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8.2.2 Stimuli
Stimuli for the reverberation plus noise condition were recorded in three separate environments: a classroom, an auditorium, and a conference room....
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8.3 Results and Discussion
30 dB 36 dB 3.00 2.88 2.75 2.25 1.75 1.50 1.00 Figure 25 shows 75th percentile ratings as a function of the STI results from the reverberation...
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Classroom Acoustics: ADA Standard Section 6.
Review the updated information on the revisions to the ADA Standards regarding classroom acoustics.
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6. Classroom Acoustics
2010 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools (Parts 1 and 2)” sets specific criteria for maximum background noise and reverberation...
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6. Classroom Acoustics
2010 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools (Parts 1 and 2)” sets specific criteria for maximum background noise and reverberation...
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6. Classroom Acoustics
2010 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools (Parts 1 and 2)” sets specific criteria for maximum background noise and reverberation...
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6. Classroom Acoustics
2010 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools (Parts 1 and 2)” sets specific criteria for maximum background noise and reverberation...
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6. Classroom Acoustics
2010 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools (Parts 1 and 2)” set specific criteria for maximum background noise and reverberation...
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Audible Alarms [4.28.2]
Recommendation: Alarms with a periodic element to the signal, such as single stroke bells, hi-low, and fast whoop, are considered more effective than those with continuous or reverberating...
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Assistive Listening Systems (ALS)
This more direct transmission improves sound quality by reducing the effects of background noise and reverberation and, as needed, increasing the volume....
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A4.28.2 Audible Alarms
Avoid continuous or reverberating tones. Select a signal which has a sound characterized by three or four clear tones without a great deal of “noise” in between....
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Deaf or Hard of Hearing
Echo, reverberation, and extraneous background noise can distort hearing aid transmission....
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Assistive Listening Systems
This more direct transmission improves sound quality by reducing the effects of background noise and reverberation and, as needed, increasing the volume....
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706 Assistive Listening Systems
This more direct transmission improves sound quality by reducing the effects of background noise and reverberation and, as needed, increasing the volume....
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1. INTRODUCTION
Hearing impaired people frequently exhibit an inordinate sensitivity to noise and reverberation (Ross 1992; Nabalek 1994)....
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Classroom Acoustics
It sets specific criteria for maximum background noise (35 decibels) and reverberation time (0.6 to 0.7 seconds for unoccupied classrooms)....
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EXECUTIVE SUMMARY
(The STI is, in effect, a measure of reverberation and noise upon the integrity of the speech source; numbers lower than 1.0 reflect degrees of degradation of the originating signal)....