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The Study of Stage Acoustics with Acoustic Reinforcement

Author: ChenZhan
Tutor: ZhangSanMing
School: Zhejiang University
Course: Building Technology
Keywords: PA Stage acoustic environment Back to listen to gain Back to listen to delay
CLC: TU112
Type: Master's thesis
Year: 2010
Downloads: 42
Quote: 1
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Abstract


Stage is the core of the hall , a good acoustic environment is very important for both the audience and performers ; sound reinforcement system is more and more widely , use sound reinforcement stage sound bad , sound reinforcement arena the speech heard environments need objective evaluation criteria subjective feelings , so back to listen to evidence-based design and debugging . This paper summarizes existing stage acoustic research based on further analysis of the sound field characteristics of the PA stage stage speakers subjective , and through interviews that can be attributed to good sound support , natural sound and timely The sound should be three aspects . Learn from the natural sound stage evaluation parameters ST factor back to listen to the gain G_f \The easy way to test self-adjusting three sets of subjective psychological experiment , the effective data analysis , discussion , and to verify the validity of the evaluation of these two parameters : 60 55 best G_f value effective distribution in line with the normal distribution, and are much higher than the audible threshold G_f value , can be characterized by subjective feelings , in line with the subjective evaluation ; back to listen to the delay is closely related with the subjective evaluation , too short or too long , are not subject to preferences . The preliminary best range get G_f value for -12.6 ~-6.5dB, back to listen to a delay of 16 ~ 21ms, for practice debugging for sound reinforcement stage back to listen to reference .

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CLC: > Industrial Technology > Building Science > Building the basic sciences > Building physics > Architectural acoustics
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