fluorescent filter
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From: Michael Dobony on 9 Dec 2009 22:57 On Wed, 09 Dec 2009 19:59:01 -0500, Bob(a)kandystan.com wrote: > On Tue, 8 Dec 2009 22:50:17 -0600, Michael Dobony <survey(a)stopassaultnow.net> > wrote: > >>What is the best way to filter fluorescent induced hum out of a sound >>system? I tried setting the FD manually to filter the offending frequency, >>but that is not working. >> >>Mike D. > > First, you need to find what equipment it is actually affecting... > > Unplug stuff starting from the inputs until the noise goes away... You could > also try turning off lights as well... > Plugging a mic cable into the stage jack makes it hum. With a mic on the cable it gets worse. Silent without the mic cable plugged in. Lights off is not always an option. It is rarely an option for the intended use. > As someone said, noise in sound systems from fluorescent is not normal... so > it's either some cheap thing connected to it, or where you are there is a > lighting equipment/wiring problem. > > The only time I ever had a noise problem like that in a sound system was at the > local legion hall, where some yahoo ran 200' of cheap mic cable all around the > walls, tied to the electrical conduit... un-balanced cheap coax... and connected > it to a Radio Shack mixer!
From: Tim Perry on 10 Dec 2009 01:36 "Michael Dobony" <survey(a)stopassaultnow.net> wrote in message news:1hg9s8h0shgfc$.15vqv2bmnzvy$.dlg(a)40tude.net... > On Wed, 09 Dec 2009 19:59:01 -0500, Bob(a)kandystan.com wrote: > >> On Tue, 8 Dec 2009 22:50:17 -0600, Michael Dobony >> <survey(a)stopassaultnow.net> >> wrote: >> >>>What is the best way to filter fluorescent induced hum out of a sound >>>system? I tried setting the FD manually to filter the offending >>>frequency, >>>but that is not working. >>> >>>Mike D. >> >> First, you need to find what equipment it is actually affecting... >> >> Unplug stuff starting from the inputs until the noise goes away... You >> could >> also try turning off lights as well... >> > > Plugging a mic cable into the stage jack makes it hum. With a mic on the > cable it gets worse. Silent without the mic cable plugged in. > Miswired cable?
From: bob urz on 10 Dec 2009 02:19 Michael Dobony wrote: > What is the best way to filter fluorescent induced hum out of a sound > system? I tried setting the FD manually to filter the offending frequency, > but that is not working. > > Mike D. Try an electrit condenser phantom powered or battery powered mike. Is the noise less or the same? bob
From: Arny Krueger on 10 Dec 2009 07:52 "Phil Allison" <phil_a(a)tpg.com.au> wrote in message news:7oaommF3o0qtmU1(a)mid.individual.net > "Arny Krueger" > > "Michael Dopey" >> >>> What is the best way to filter fluorescent induced hum >>> out of a sound system? >> >> If the noise is actually hum, then you'd probably have >> the same hum no matter what kind of bulbs you had. > ** So Arny has never noticed how *fluoro* lights make > electric guitars buzz ? (1) I've seen it happen. (2) I've made it go away. > No such thing happens with (non dimmed) incandescents. (1) I've seen it happen. (2) I've made it go away. >> Treat the problem like an ordinary grounding problem and >> you'll probably solve it. > ** No you won't !!!! (1) I've seen it happen. (2) I've made it go away.
From: Michael Dobony on 10 Dec 2009 09:16
On Thu, 10 Dec 2009 01:36:18 -0500, Tim Perry wrote: > "Michael Dobony" <survey(a)stopassaultnow.net> wrote in message > news:1hg9s8h0shgfc$.15vqv2bmnzvy$.dlg(a)40tude.net... >> On Wed, 09 Dec 2009 19:59:01 -0500, Bob(a)kandystan.com wrote: >> >>> On Tue, 8 Dec 2009 22:50:17 -0600, Michael Dobony >>> <survey(a)stopassaultnow.net> >>> wrote: >>> >>>>What is the best way to filter fluorescent induced hum out of a sound >>>>system? I tried setting the FD manually to filter the offending >>>>frequency, >>>>but that is not working. >>>> >>>>Mike D. >>> >>> First, you need to find what equipment it is actually affecting... >>> >>> Unplug stuff starting from the inputs until the noise goes away... You >>> could >>> also try turning off lights as well... >>> >> >> Plugging a mic cable into the stage jack makes it hum. With a mic on the >> cable it gets worse. Silent without the mic cable plugged in. >> > > Miswired cable? 6 different cables are doing the same thing, including 3 premium new cables, Live wire Elite, Planet Waves (case shorted to ground), and Mogami Gold. |