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The ribbon microphone secrets:
https://www.howtogeek.com/802803/embed-excel-file-in-website/
https://www.geekpaw.com/product/sale-39658
Piezo microphone from lighter scheme:
LIKE A PRO:
http://www.richardmudhar.com/blog/piezo-contact-microphone-hi-z-amplifier-low-noise-version/