public address system research papers
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public address system research papers




Study on the application of time-delay technique to public address system in a tunnel
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Abstract To improve the speech intelligibility (easiness of hearing) of public address system for emergency evacuation in highway tunnels, the authors proposed an application of successive time-delay technique to the system and performed experiment in an actual

Development of a digital integrated and minimized public address system with central control
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Abstract There are two kinds of public address (PA) systems: analog PA systems and digital PA systems. The digital PA systems have better communication quality than analog PA systems, and many companies manufacture various types of digital PA systems. Digital PA

Dr. Teeth's Public Address System A mixed up seminar on Federico Garca Lorca's El Publico, 17.10. 01
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A sample that doesn't appear in the live seminar mix, this intro sample demonstrates the value of nonlinear digital sound editing (eg Sonic Foundry's Soundforge, with which this mix CD was recorded and produced) in interpreting source samples. In this case, the sample

Optimal speech level by public address system for young and elderly listeners
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Abstract The optimal speech level presented by a public address system for both the young and the aged was investigated in simulated sound fields. The intelligibility and listening difficulty for words were obtained to evaluate the speech transmission performance. Both

School Board Public Address System
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input patch 4 input patch 3 input patch 2 input patch 1 input School Board Public Address System system mixers signal processing distribution President Secretary Audience Board Members to room loudspeakers additional Board Member microphones cable feed

Design and Implementation of a Public Address System Optimized for Exhibition Booths
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Abstract Typical exhibition setups make use of video installation, audio playback and moderation to angle for the visitors attention. To reduce mutual interference between close positioned booths, organizers often restrain the sound pressure level. In this work we

A study of speech intelligibility over a public address system
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Abstract Speech intelligibility address system at Arlarda Airport has been calculated by different methods. The articulation index method (AI) is based on frequency characteristics and prwides merely a rough correction for room reverberation. Ckl the


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