Just read this on Bobby Owinski blog bobbyowsinski.blogspot.com about fungi influencing the sound of our instruments. He states the sound of centuries-old musical instruments seems to surpass the tones of new constructs. The Center for Molecular Medicine has now discovered the cause: fungi. During the 17th century, wood used for instrument-making was infected by fungi, which altered the density of the wood, resulting in the highly-sought vibrations of old musical instruments. However, in modern times, wood is treated to kill microorganisms. From a musical perspective, this creates inferior material. The good news: new violins can be infected deliberately with fungi to bestow a grander sound.
If you want to know if fungi really create vintage sound then read this article:
http://bobbyowsinski.blogspot.com/2012/09/get-that-vintage-sound-from-fungi.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+BobbyOwsinskisBlog+%28Bobby+Owsinski%27s+Blog%29&utm_content=Google+Reader
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I’m seeking info for sanctuary reverberation absorbsion material ( panels) and best placement.
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?