Re: female 3.5mm to dual female RCA
From: Pasquale (spdrweb_at_NOTHNXtelusplanet.net)
Date: 01/02/05
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Date: Sun, 02 Jan 2005 01:01:04 GMT
see below...
Walter Harley wrote:
> "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?
I have a Universal Microphone with 1/4" jack and the adaptor to 3.5mm.
> 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)?
On the package it says it can be used with karaoke, camcorders, portable
stereos, etc.
>
> What is the camcorder you are using?
Panasonic. Just purchased a couple of weeks ago. FYI... Model PV-GS200.
> 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?
It has A/V in/out 3.5mm(?) jack. With the camera came a A/V cable with
video, and left and right RCA on one end and the 3.5mm plug on the
other. I am getting the video no problem. As for the audio, I am getting
sound, I just need it to be amplified.
I put together a adaptor cable to go from the 3.5mm microphone jack to
the dual RCA ends. I think it may be from here where I am getting the
static/hum/noise. It seems that if it is held right the noise is pretty
much gone. Maybe poor solder or bad connection to the tail of the
microphone jack (ground).
The way I did the soldering was:
- RCA white inner core wire to the silver tab of the mic jack
- RCA red inner core wire to the copper tab of the mic jack
- copper wire surrounding each are both solder to the tail of the mic jack
> 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.
>
>
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