The Difference in Subjective Experience Related to Acoustic Treatments in an Ordinary Public Room: A Case Study

In ordinary public rooms absorbent ceilings are normally used. However, reflective material such as diffusers can also be useful to improve the acoustic performance for this type of environment. study, different combinations absorbers and have been The study investigates whether a test group 29 people perceived sound in an room differently depending on treatment. Comparisons same position configurations well positions within one configuration were made. subjective judgements compared measures T20, C50 G difference values these parameters. It was found that when evaluating room, including greater extent being similar with walls. seen parameter mainly affected perception, needing 2 dB recognize difference. measurements could not fully explain differences obtained perception. addition, image created by types treatments shown important impact