Re: female 3.5mm to dual female RCA

From: Walter Harley (walterh_at_cafewalterNOSPAM.com)
Date: 01/02/05 

Date: Sat, 1 Jan 2005 16:24:00 -0800

"Pasquale" <spdrweb@NOTHNXtelusplanet.net> wrote in message
news:7EEBd.41149$Y72.19723@edtnps91...
> I'll see where I can find a noise gate, any suggestions?
>
> Also, is it true that a capacitor would reduce noise? If so, how would it
> be done?

You're throwing equipment at a problem when what you need to do is
understand the problem. That almost never works, and almost always costs
more than solving the problem the right way. A noise gate would cost you
more than getting the right kind of microphone and/or preamp. And anyway,
all it will do is reduce the noise when there is no signal; it will not do
anything about the situation when there is a signal. And no, a capacitor
will not reduce noise.

You still have not adequately described the problem you have. In
particular, please answer ALL of the following questions:

What is the microphone you are using?
What kind of connector does it have?
Do you have any reason to believe that it is intended as a general-purpose
microphone, or is it intended to mate with some particular piece of
equipment (that is, did it come as an accessory to some other piece of audio
gear such as a tape recorder)?

What is the camcorder you are using?
What audio inputs does it have? (It might have more than one - for
instance, it might have both line inputs and an auxiliary mic input.)
What kind of connectors does it use for its audio inputs?
Are they intended for line level or mic level signals, and if the latter, do
they provide DC supply voltage for an electret mic?

Most likely, your problem is that are trying to use an electret type mic,
which has a little preamp built into it, and it needs DC supply voltage to
be provided by whatever it's plugged into; and your camcorder inputs are
intended for line level signals rather than a mic. In this situation, a
preamp will not help unless it is intended for that sort of mic. But, based
on what you've said so far, there is no way to tell if that is actually the
problem. You need to answer the above questions and then people might be
able to help you.

Relevant Pages

  • Re: female 3.5mm to dual female RCA
    ... > I'll see where I can find a noise gate, ... is it true that a capacitor would reduce noise? ... Are they intended for line level or mic level signals, and if the latter, do ...
    (sci.electronics.basics)
  • Re: opamp noise gain transfer function zero
    ... > 1/in the noise gain transfer function. ... The cap introduces a pole in the feedback transfer function. ... capacitor above the zero frequency, ...
    (sci.electronics.design)
  • Re: Sensitivity and Frequency Response
    ... capacitor for the capsule, and it met the spec quite happily - ... If you disconnect the primary noise source in the microphone (which is ... the capsule in any good modern design), of course you will get very ... A very high resistance shunted by a capacitance. ...
    (rec.audio.pro)
  • Re: USB programmable Open Source Hardware
    ... nothing to reduce noise on the power rails. ...  The capacitor that is ... I realize that many designs just don't have a need for this, ...
    (comp.arch.fpga)
  • Re: Learn How VoiceMax Increases Your Transmission Range...
    ... thing I'm sure that works is the noise gate, but I still don't see the ... to eliminate ambient noise. ... the audio mutes. ... background noise detracts intelligibility from the voice signal. ...
    (rec.radio.cb)