Vinyl sales are coming back. Since 2007, record sales have climbed each year, reaching 4.6 albums sold in 2012. While legitimate retailers have begun selling vinyls, the bootleg record industry is making a comeback too. Consumer technology, such as smartphones and youtube have made it harder for bootleggers to turn a profit, with so many free music sources available to the public.
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Vinyl is making a comeback and so is its cousin, the bootleg.
There may be apps that do that. You can definitely find spectrum analyzers that will measure ultra low.
Is there an APP that can measure the ultra low frequency levels?
.Plaster is a viable middle and high frequency absorber. We have used it many times in new builds that have…
Hi Dennis I'm curious what you think of acoustic perforated plaster - say CST Galaxy -on particularly ceilings in music…