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How can I make studio monitor speakers automatically mute when the microphones go up?

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tinward

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Mar 19, 2012, 11:39:40 PM3/19/12
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I'm designing a radio studio, and to prevent feedback, I need the studio
monitors to automatically mute themselves when the microphone faders
start to go up. It would be nice not to have to do it manually
everytime.

I also can't have some DIY job with wires and microswitches! Is there
some kind of unit i can buy which does the job?

------
cool guy, cool man, cool 'i' (http://www.ipadconvertersoft.com)pad user




--
tinward

charles

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Mar 20, 2012, 4:08:34 AM3/20/12
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In article <tinward...@diybanter.com>,
tinward <tinward...@diybanter.com> wrote:

> I'm designing a radio studio, and to prevent feedback, I need the studio
> monitors to automatically mute themselves when the microphone faders
> start to go up. It would be nice not to have to do it manually
> everytime.

> I also can't have some DIY job with wires and microswitches! Is there
> some kind of unit i can buy which does the job?
x
google shows at least 2 firms who make faders with microswitches fitted.
That's what the pros use.

--
From KT24

Using a RISC OS computer running v5.18

Dave Liquorice

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Mar 20, 2012, 4:21:43 AM3/20/12
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On Tue, 20 Mar 2012 03:39:40 +0000, tinward wrote:

> I'm designing a radio studio, and to prevent feedback, I need the studio
> monitors to automatically mute themselves when the microphone faders
> start to go up. It would be nice not to have to do it manually
> everytime.

Proper faders have micro switches built in, normally at least two.
One for "fader open" to mute the SLS or start a remote machine etc
and one "overpress" for PFL. Ideally there needs to be some automatic
way of only faders that are carrying a studio mic circuit mute the
SLS. BBC studios use the screen of the jackfield mic plugging for
this.

If you can't swap the faders or their price tag is too high or use a
decent desk then don't feed the SLS with studio out but a mix-minus
of the studio mics. This does lose the warning to people in the
studio that a mic fader is off the backstop though.

--
Cheers
Dave.



John Williamson

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Mar 20, 2012, 4:28:27 AM3/20/12
to
tinward wrote:
> I'm designing a radio studio, and to prevent feedback, I need the studio
> monitors to automatically mute themselves when the microphone faders
> start to go up. It would be nice not to have to do it manually
> everytime.
>
> I also can't have some DIY job with wires and microswitches! Is there
> some kind of unit i can buy which does the job?
>
Search for "Radio studio mixer", but you'll not like the prices. What
they normally use is a microswitch attached to the microphone fader, and
some electronics to mute the monitor channel. Some DJ mixers have a
similar switch, but only duck the music level.

You could also just turn the monitor speaker volume down all the time so
you don't get feedback, but still have enough volume to have confidence
in what you're monitoring.

Or monitor on headphones.


--
Tciao for Now!

John.

tony sayer

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Mar 20, 2012, 5:50:51 AM3/20/12
to
In article <tinward...@diybanter.com>, tinward <tinward.9adf188@diy
banter.com> scribeth thus
>
>I'm designing a radio studio, and to prevent feedback, I need the studio
>monitors to automatically mute themselves when the microphone faders
>start to go up. It would be nice not to have to do it manually
>everytime.
>
>I also can't have some DIY job with wires and microswitches! Is there
>some kind of unit i can buy which does the job?
>



Wrote most of that before I noticed that you can't have some DIY job!..

It seems to me that you have a more conventional sound recording mixer
i.e. one not designed for radio broadcast applications. If that is the
case I don't know of any external unit that does this.

You need to have some indication that the Mic fader is up and off its
end stop.

You can also use that switching signal for such things as "Mic Live"
lights, necessary in radio broadcast.

Is this because you aren't allowed to modify the equipment or are unsure
of how to do this?..

***************************************************************

On most all desks there is a switch on the Microphone fader that when it
comes off the end stop it then can operate a switching relay to do just
that.

Most decent fader ranges do this such as Penny and Giles and some Alps
ones have that as a fitment.

On some desks such as the Sonifex S2 series they use Voltage controlled
amplifier/s for gain reduction and in those there is a control voltage
usually from 0 to 5 Volts.

You could make up a detector and comparator circuit the one the voltage
from the slider of the fader, consider it like a conventional volume
control, comes of the 0 volts rest point your switching comparator
detects this and does the necessary..

One some desks you might also find Overpress switches these are the
other way around when you pull the fader towards you to switch a PFL
circuit to give you a quick check of what's on that channel before
fading it up..



>------
>cool guy, cool man, cool 'i' (http://www.ipadconvertersoft.com)pad user
>
>
>
>
>--
>tinward

--
Tony Sayer



Dave Liquorice

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Mar 20, 2012, 7:01:21 AM3/20/12
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On Tue, 20 Mar 2012 08:28:27 +0000, John Williamson wrote:

> You could also just turn the monitor speaker volume down all the time so
> you don't get feedback, but still have enough volume to have confidence
> in what you're monitoring.

OP said studio monitors not cubicle monitors... B-)

--
Cheers
Dave.



tony sayer

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Mar 20, 2012, 7:37:12 AM3/20/12
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In article <nyyfbegfubjuvyypb...@srv1.howhill.co.uk>, Dave
Liquorice <allsortsn...@howhill.co.uk> scribeth thus
You'll have to explain that BBC studio speak I reckon the O/P Dave;)..
--
Tony Sayer

John Williamson

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Mar 20, 2012, 9:10:49 AM3/20/12
to
As the OP mentioned a radio studio, I assumed he was talking about
confidence monitoring used to make sure that something is actually going
out to continuity or the transmitter. ;-)

Although a speaker mute relay could also be used to start and stop the
logging recorder to save space.

Rick

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Mar 20, 2012, 9:17:06 AM3/20/12
to
Shure Vocal Master system used to come with anti-feedback switch.Maybe
there is such an add on unit sold by them


It killed qulity though ... but was useful for setting up a load of
Mics ... once set up complete the circuit was switched off.

Dave Plowman (News)

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Mar 20, 2012, 10:19:55 AM3/20/12
to
In article <tinward...@diybanter.com>,
tinward <tinward...@diybanter.com> wrote:

> I'm designing a radio studio, and to prevent feedback, I need the studio
> monitors to automatically mute themselves when the microphone faders
> start to go up. It would be nice not to have to do it manually
> everytime.

> I also can't have some DIY job with wires and microswitches! Is there
> some kind of unit i can buy which does the job?

As had been said, the normal way is via micro switches on the faders. A
level sensing device wouldn't be much use for silence. ;-)

However, why are you feeding studio mics back to the studio foldback
speaker?

--
*When I'm not in my right mind, my left mind gets pretty crowded *

Dave Plowman da...@davenoise.co.uk London SW
To e-mail, change noise into sound.

Adrian C

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Mar 20, 2012, 10:44:23 AM3/20/12
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On 20/03/2012 03:39, tinward wrote:
> I'm designing a radio studio, and to prevent feedback, I need the studio
> monitors to automatically mute themselves when the microphone faders
> start to go up. It would be nice not to have to do it manually
> everytime....

Ignore it. The OP is not real, and it's a four year old query pinched
from 'Yahoo Answers' so that he can show the Spammy URL.

--
Adrian C

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