This is a flowchart that can help you determine what it believes you will want to read next by determining the mood that you are in. The flowchart has different options you can choose such as if you want to sound smart at parties or if you would rather want to understand humanity better. Or you could just choose the option that you are bored and want something entertaining to read.
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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?