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Yes, sub-woofer loudspeakers make excellent low-frequency microphones when used with a suitable pre-Amp. And using a PC with Spectrogram software is a great way
by Johnythree 9y ago
Yes, sub-woofer loudspeakers make excellent low-frequency microphones when used with a suitable pre-Amp. And using a PC with Spectrogram software is a great way to record and visualise the sounds.
However, please read my post above on what I actually found.