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Author Topic: Annoying noise/sound  (Read 300 times)

ReneeDamstra

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Annoying noise/sound
« on: March 22, 2021, 06:33:05 am »

I have a Sennheiser EK 1039 receiver and SK 100 sender installed at frequency allowed for the specific region. With a 5 Ghz internet connection the sound is transmitted from a classroom to me at a distant location so I am able to interpret for a boy hard of hearing. The sound is either really good OR an annoying buzz/noise/squeeching sound is making it hard for me.

I have a short audioclip of the sound. Does anyone of you have an idea what this is and what to do about it? Is it a matter of simply checking the cable connections, is the wifi too bad at school, should I change frequency? I hope you can help me.

https://voca.ro/19mQSICxLSUo
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Keith Broughton

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Re: Annoying noise/sound
« Reply #1 on: March 22, 2021, 07:26:22 am »

Could you be more specific about exactly how these devices are connected and how far the distance is for the wireless.
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Henry Cohen

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Re: Annoying noise/sound
« Reply #2 on: March 22, 2021, 10:25:12 am »

I have a Sennheiser EK 1039 receiver and SK 100 sender installed at frequency allowed for the specific region. With a 5 Ghz internet connection the sound is transmitted from a classroom to me at a distant location so I am able to interpret for a boy hard of hearing. The sound is either really good OR an annoying buzz/noise/squeeching sound is making it hard for me.

I have a short audioclip of the sound. Does anyone of you have an idea what this is and what to do about it? Is it a matter of simply checking the cable connections, is the wifi too bad at school, should I change frequency? I hope you can help me.

https://voca.ro/19mQSICxLSUo

There is some sort of electronic device coming in close enough proximity to the EK1039 receiver as to cause what sounds like electromagnetic interference (EMI). But as it's not consistent, either the receiver is moving about (is it worn on the body, or is it placed somewhere in the room) or the source of the EMI is. Check for cell phones, laptop computers, LED desk lamps, telecoil hearing aid, anything electronic that might be in variable proximity to the receiver.
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Henry Cohen

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Ike Zimbel

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Re: Annoying noise/sound
« Reply #3 on: March 22, 2021, 10:51:11 am »

There is some sort of electronic device coming in close enough proximity to the EK1039 receiver as to cause what sounds like electromagnetic interference (EMI). But as it's not consistent, either the receiver is moving about (is it worn on the body, or is it placed somewhere in the room) or the source of the EMI is. Check for cell phones, laptop computers, LED desk lamps, telecoil hearing aid, anything electronic that might be in variable proximity to the receiver.
I haven't listened to the clip, but +1 to Henry's suggestion. My first question when these things come up is "Where's your cell phone when this is happening?" If the instructor has their phone in the same pocket as the transmitter, that's trouble. Bear in mind that they will probably be completely unaware that this is happening (because they're not listening to the receiver), and, they don't need to be using the phone (ie: like on a call) for this to happen as things like text messages, notifications etc. keep the phone active.
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Scott Holtzman

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Re: Annoying noise/sound
« Reply #4 on: March 24, 2021, 04:33:17 am »

There is some sort of electronic device coming in close enough proximity to the EK1039 receiver as to cause what sounds like electromagnetic interference (EMI). But as it's not consistent, either the receiver is moving about (is it worn on the body, or is it placed somewhere in the room) or the source of the EMI is. Check for cell phones, laptop computers, LED desk lamps, telecoil hearing aid, anything electronic that might be in variable proximity to the receiver.


That's sure sounds like what happens if I leave my cell phone next to my little conferencing mic on the desk.  I think you nailed it.
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Scott AKA "Skyking" Holtzman

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ProSoundWeb Community

Re: Annoying noise/sound
« Reply #4 on: March 24, 2021, 04:33:17 am »


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