This category is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
This category is within the scope of WikiProject Professional sound production, a collaborative effort to improve the coverage of sound recording and reproduction on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Professional sound productionWikipedia:WikiProject Professional sound productionTemplate:WikiProject Professional sound productionProfessional sound production articles
I have created this subcategory because the articles in this category mostly (although not consistently) belonged to three parent categories - all of which were rather large. I recognize that this category partially duplicates the Sound Measurements template but I think it is much tidier this way. --RichardVeryard 09:36, 11 May 2007 (UTC)[reply]