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Whistling from speaker - Polycom VSX 7000 Video Conference

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Feedback. The mike gain is set too high

Posted on Oct 26, 2012


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Posted on Jan 02, 2017


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I have a pair of VP1220D Active PA Speakers in my home studio, & there is a varying whistle coming through which is very annoying. The studio is on a separate power circuit to the rest of the house, & I've...

Some kind of feedback perhaps? Are you using a multi core with sends & receive inside it but NOT individually screened? i.e. "pick up" inside the cable? Is it both speakers? Try them one at a time in case one is faulty but affecting the other? Unplug the input leads & see if the speakers by themselves are making any sound ( a small hiss?) If the speakers with no input (but powered :-) makes no whistle then it's coming from other gear...... Also the speakers may have switch mode power supplies & if you don't have a decent ground you could have problems. Make sure you have a good ground connection back to the fuse board. If you studio is in a shack at the end of the garden running on extension cords you may need a local connection to ground..... Good Luck!

Mar 24, 2017 | Behringer VP1220D Eurolive 2-Way Powered...

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Whistling sound form tweeters

The unit is picking up noise from the electrical system of the vehicle--power is either connected to the wrong place or a noise filter needs to be inserted at the voltage source for this equipment.

Apr 23, 2012 | Infinity Speakers Infinity Reference 1031t...

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Radio intereference (whistling sound)in auto

buy a noise suppressor, you can get it at any audio store

Jun 09, 2010 | 2005 Chevrolet Tahoe

1 Answer

Truck jerks when driving - like it is not getting enough fuel There is also a whistling sound when gas pedel is pressed

Check all vacuume lines for leaks. Also is the whistling sound comming from the speakers inside the truck or from under the hood?

Dec 12, 2009 | 2006 Ford F-150

1 Answer

Loud whistling noise coming from tv speakers

a couple of things could make the tv chassis whistle
1 coud be dry solder joint probably on power capacitors
2 IF your tv has tube the board on the back could be making the noise its to do with the yoke on the way out!

Jul 13, 2009 | Televison & Video

1 Answer

Whistling speakers

if your running a amp your power wire and rca"s are to close then you my have to seperate amp double check wiring always try to keep power wires away from other wires signal jumps.they sell noise reduction boxes(cheap).i"ve had 50\50 results worth a try

May 04, 2009 | Car Audio & Video

1 Answer

My speakers wont work

lorcan,  please tell us in detailed, try this, open your speaker volume to the maximum level, then touch the metal side of your phone jack which should be connected to your pc, if your speaker sound such as whistling or something that weired, your speaker should working normally. check your pc for muted sound and driver.

Jan 24, 2009 | Dell A215 Computer Speakers

1 Answer

2 problems; first cant hear from reciever, only when on speaker phone. Second speaker whistling when on speaker phone.

the whistle could be from teh sim-card take it out and place it into another mobile if you do not hear the sound anymore have the sim-card for the ear piece take the phone to a mobile service center or professional mobile technician to hvae it replaced.

Mar 02, 2008 | Samsung SYNC SGH-A707 Cellular Phone

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