Wireless headphone buzzing

[shredder]

I have this pair of wireless headphones from Frontech. Whenever I connect the transmitter to a source like PC, hi-fi, etc. I get this buzzing sound, which is not audible for loud music but is audible for softer music. But I noticed that when I connect to a source which is powered from batteries (eg: mobile phone, iPod, etc) then the buzzing disappears. So I am guessing here that the buzzing sound has something to do with proximity to the mains.
Is there some simple solution to this?
I was also thinking of getting a pair of Philips wireless (IR) headphones. Will they also have this same problem?
TIA

 

[theironhorse]

the buzzing noise is due to the main humming....

when its on DC it wont do the same.. however there might be a slight white noise.. but that will be bearable...

also is the transmitter on battery or ac power... you can get cheapo reachargeable AAA batteries for the same. it will reduce the buzz to a great extent but wont wipe it completely..


philips are good.. senn. and logi wireless headsets are said to be noise free... not sure about prices...

Intermittent buzzing can be caused by electrical equipment located in the immediate area of the telephone and headset system, such as fluorescent lights, computers, fax machines, typewriters, and power strips (surge protectors). Frequently, power cords and cables that are bundled together will cause buzzing. The best solution is to keep this type of equipment separated from the headset, amplifier and telephone whenever possible.



Try changing channels using the channel button on your remote unit.

Try locating your base unit in different positions.

Make sure that no objects are positioned between the remote and base unit.

Be sure that neither the remote or base units are next to electronic equipment or other radio frequency devices.



another thing i noticed is if we keep the wireless headphone volume on full and control the volume from the master device.. then its the speakers in the headphone that buzz..


so keep the volume high on the master device and control the volume from the headset and you will find it more pleasing..

 

[shredder]

aha TIR I expected you would reply..........
However I know not what you mean by this:

"the buzzing noise is due to the main humming....

when its on DC it wont do the same.. however there might be a slight white noise.. but that will be bearable..."

what do you mean by "main humming" and what is meant by "when its on DC it wont do the same" ??
the transmitter is powered by new AAA batteries, so the cause of humming due to inadequate power can be dismissed.
like I mentioned before, the buzz is not there when connected to a battery powered device.

 

[theironhorse]

the mains ( ac ) power supply.... the humming reduces as you stated when you connect it to a stand alone mp3 player or cellphone as it not connected to AC by any means....

so its due to the interference in AC

can also be due to wireless signal in that area.. try changing the location....of the base and see if it reduces however it wont go completely....

the only option can be the good n expensive wireless headphones that will have built in AC humming isolater and can transmit cleaner sound...

 

[shredder]

can also be due to wireless signal in that area.. try changing the location....of the base and see if it reduces however it wont go completely....

the only option can be the good n expensive wireless headphones that will have built in AC humming isolater and can transmit cleaner sound...

tried changing the location of transmitter.... no luck. Like I said humming is bearable for music but very audible while watching movies.

Do you know whether the wireless Philips headphones (SHC 1300 or 2000) have this AC humming isolater?

 

[theironhorse]

philips might not have the humming issue as the other headphones work on wireless .. this one is through infrared.. so might be less or non -existent. however network coverage might not be good and might need to be in line of sight for the same....

Audio-Technica - Microphones, headphones, wireless microphone systems, noise-cancelling headphones & more : Resolving Interference Problems

4) USE AN AC POWER ISOLATION TRANSFORMER
AC isolation transformers are common devices in electronic repair shops.
Technicians use them to isolate the power on their repair benches from
physical grounds in the repair shop (pipes, radiators, etc.) This is primarily for
safety reasons.
You can use the same isolation transformers to electrically isolate your A/V
equipment from connected AC power and thus break any ground loops. They
are typically placed in series with the power cord to the projector
We recommend the Tripp-Lite IS 250, IS500 or IS500 models

check this Ground Loop Isolator - RadioShack.com


http://www.cinemasource.com/articles/gnd_loop.pdf





First, the subwoofer: unplug the coaxial cable that connects to your powered subwoofer to see if the ground-loop hum disappears. If it does, it's likely coming in through your cable/satellite TV feed


connect all your av equipment to one ac out.. .it elimates the possiblity of ground loop and can reduce ac hum to a great extent...

 

[madbullram]

iron horse: Edit your posts if you want to add more info!!! Do not create news posts

 

[theironhorse]

i am sorry due to creating new posts. .but i was in office and some how due to flash issue i was not able to edit them hence new posts.. i will keep a check next time...