179,854Messages
9,130Senders
30Years
342mboxes

← back to listing · view thread

From:
Harvey Thornburg
Date:
Fri, 4 Feb 1994 11:35:15 -0800 (PST)
Subject:
Re: ultrasonics/subsonics
Mbox:
idm.9402.gz
quoted 4 lines Yeah, it may go down to 0 Hz, but no amplifier would amplify these> Yeah, it may go down to 0 Hz, but no amplifier would amplify these > signals. Virtually all amplifiers cut off below ~50 Hz. You can do more > than just make people shit themselves, I personally don't fancy being > eviscerated by the sub-bass I love :)
How about modulating (shifting) the ~0Hz signals up to some acceptable frequency range, amplifying, and then demodulating back down?
quoted 1 line 3 0 3> 3 0 3
/-oOOo------------oOOo-\ --------------------------/------------------------\-------------------------- "the only constant / Harvey D. Thornburg \ "the only certainty thing is change" / \ is uncertainty" / hthornbu@osiris.ac.hmc.edu \ ------------------------------------------------------------