Cell Phone/ Speakers - Blu-ray Forum

Aaron · 10-11-2007, 10:45 PM

Quote:

Originally Posted by X-Ninja

oh! text messages as well huh?

well, hmmm... that kind of sucks.

damn you have alot of phones...

My cell phone doesnt mess up my speakers. Although my house phone loves to cut out my PS3s internet. Hurray!

Yeah. I have no idea how to help. buy a new phone. Oh! and make it a walkman phone... supporting sony > All.

although... that would be a stupid idea, and a pain to do.

is it just like, one beep? or does it continually beep at you as you talk?
If it continually beeps... that would suck.

It's not just my phone, every cell phone does it.

MouseRider · 10-11-2007, 11:12 PM

What you are hearing is the interference to the analog audio caused by the mobile signals being sent by your phone.

It happens most obviously to speakers that are self-powered or if the interference is happening before the amplification stage.

Blackberries are one of the most notorious because of their near-continuous data connections. Some phones generate more interference than others depending on their signal strength and transmission characteristics.

If you've seen those little "magic" blinking light charms they sell that blink when a call is coming in, the reason why they blink is the same reason you hear the noise from your speakers.

I actually had a pair of speakers once that picked up radio signals, drove me nuts, everything would be off and I would hear faint sounds of a radio channel.

You can actually reduce or remove these interference by getting a ferrous filter and clamping it around your speaker cables near the speaker end or if it is happening to you prior to amplification, clamp before it goes into the amp.

You can usually buy them from Radio Shack or a electronics hobby place.

These are basically small magnets can clamp around your cables, you'll probably see them around some of your DC adapter cords, some serial cables and other signal cables.

They look like this:

Footloose301 · 10-11-2007, 11:21 PM

Quote:

Originally Posted by MouseRider

These are basically small magnets can clamp around your cables, you'll probably see them around some of your DC adapter cords, some serial cables and other signal cables.

The look like this:

Thats cool. I've got a bag of about 10 of them and didn't know what they were for. They came with my Pioneer AVH-P7600DVD. Hmm.

MouseRider · 10-11-2007, 11:24 PM

Quote:

Originally Posted by Footloose301

Thats cool. I've got a bag of about 10 of them and didn't know what they were for. They came with my Pioneer AVH-P7600DVD. Hmm.

Wow, that's generous of them.

These are useful for your analog signal cables if you have lots of interference where your equipment is located.

kevinbr100 · 10-12-2007, 10:57 PM

Quote:

Originally Posted by Aaron

It's not just my phone, every cell phone does it.

it is not based on the phone, its based on the frequencies and protocols your phone is using, gsm/edge in the USA seems to cause interference to any speaker near by, or tv/monitor, when sending and receiving data between it and the cell site. your phone does this periodically whether or not you are actively using it. 3g though doesnt seem to have a problem

buckshot · 10-12-2007, 11:13 PM

what's really cool is what my phone does to my crt monitor at work. when my phone is loading webpages or what have you the screen get all jittery and funny. like my monitor is having a seizure.

fronn · 10-13-2007, 09:54 AM

I've never had it happen around higher quality speakers -- only the cheap ones in TVs and lower end Stereo/HT speakers, it seems.

I often leave my Blackberry charging on one of my speakers (as it's the easiest place to set it while charging) and never hear a peep -- they aren't even necessarily high end speakers, just mid range. My girlfriend's phone causes her stereo system to go nuts, but never my HT setup (hers is some off brand system she got years ago).

It's not all speakers that it happens to and, as stated previously, it only seems to be GRPS/EDGE modes that cause it.

DrinkMore · 10-13-2007, 02:07 PM

Quote:

Originally Posted by buckshot

what's really cool is what my phone does to my crt monitor at work. when my phone is loading webpages or what have you the screen get all jittery and funny. like my monitor is having a seizure.

And you put that same device up to your head?

buckshot · 10-13-2007, 02:55 PM

Quote:

Originally Posted by DrinkMore

And you put that same device up to your head?

nope. bluetooth baby. I keep it in my pocket. I hoped it would be biirth control. but my soon to arrive daughter proves that didn't work.

DrinkMore · 10-13-2007, 05:25 PM

Quote:

Originally Posted by buckshot

nope. bluetooth baby. I keep it in my pocket. I hoped it would be biirth control. but my soon to arrive daughter proves that didn't work.

Lol, I was going to say there go your nads :P

Yeah, I used to like bluetooth. Until every freaking person in the world started walking around with a headset attached to their fast like they were super DUPER important! Sorry, but after I saw that, I ditched mine. It just drove me crazy to see it. People also got worse when they talked on them - louder and more obnoxious.

Congrats on the youngun

10-11-2007, 11:12 PM	#2
MouseRider Active Member Member since:Aug 2007	What you are hearing is the interference to the analog audio caused by the mobile signals being sent by your phone. It happens most obviously to speakers that are self-powered or if the interference is happening before the amplification stage. Blackberries are one of the most notorious because of their near-continuous data connections. Some phones generate more interference than others depending on their signal strength and transmission characteristics. If you've seen those little "magic" blinking light charms they sell that blink when a call is coming in, the reason why they blink is the same reason you hear the noise from your speakers. I actually had a pair of speakers once that picked up radio signals, drove me nuts, everything would be off and I would hear faint sounds of a radio channel. You can actually reduce or remove these interference by getting a ferrous filter and clamping it around your speaker cables near the speaker end or if it is happening to you prior to amplification, clamp before it goes into the amp. You can usually buy them from Radio Shack or a electronics hobby place. These are basically small magnets can clamp around your cables, you'll probably see them around some of your DC adapter cords, some serial cables and other signal cables. They look like this: Last edited by MouseRider; 10-11-2007 at 11:22 PM. Reason: added something and fixed typo

10-13-2007, 09:54 AM	#7
fronn Expert Member Member since:Sep 2007 Location:St. Paul, Minnesota Blu-ray collection:- DVD collection:- Blu-ray reviews:1	I've never had it happen around higher quality speakers -- only the cheap ones in TVs and lower end Stereo/HT speakers, it seems. I often leave my Blackberry charging on one of my speakers (as it's the easiest place to set it while charging) and never hear a peep -- they aren't even necessarily high end speakers, just mid range. My girlfriend's phone causes her stereo system to go nuts, but never my HT setup (hers is some off brand system she got years ago). It's not all speakers that it happens to and, as stated previously, it only seems to be GRPS/EDGE modes that cause it. Last edited by fronn; 10-13-2007 at 09:57 AM.

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10-12-2007, 11:13 PM	#6
buckshot Blu-ray Guru Member since:Feb 2007 Location:san die ego Blu-ray reviews:2 Trading Score:9	what's really cool is what my phone does to my crt monitor at work. when my phone is loading webpages or what have you the screen get all jittery and funny. like my monitor is having a seizure.

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