An investigation on factors that cause error in reverberation time measurement (ISO 3382) in UTHM Lecturer Room
This study was conducted to determine the cause of error that occurred on the reverberation time measurement. Measurements were performed in a UTHM lecturer room in accordance with ISO 3382 standards. Room was designed with different conditions; empty room, room with curtain and room that used egg c...
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| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/4370/ http://eprints.uthm.edu.my/4370/1/Paper_30119_%2D_Camera_ready.pdf |
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| Summary: | This study was conducted to determine the cause of error that occurred on the reverberation time measurement. Measurements were performed in a UTHM lecturer room in accordance with ISO 3382 standards. Room was designed with different conditions; empty room, room with curtain and room that used egg containers as sound absorber. The results of measurements were compared with the results based on calculation using
Sabine, Millington-Sette and Eyring
formula. Comparisons were made using the Mean Absolute Error (MAE) statistical method. The analysis showed that the error occurs due to the factors of absorption materials selection, sound frequency, room shapes, material position and background noise. |
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