The Library of Congress has a new plan to preserve significant historical audio recordings. The plan, The Library of Congress National Recording Preservation Plan, will involve both private and public sectors, and aims to make recordings available for educational purposes, as well as for historical preservation. Storage capacity and ever-changing technology are just two of the many challenges involved in the project.
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Library Of Congress is in preservation mode. Read why.
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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?