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#1
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I have been getting sounds in our house that seems to come from
electronic stuff around the house. I also listened to what sounded like voices coming from behind the computer? We as a Family are stumped. We have written Bell Canada as well as call there teck support, They don't understand what voice over ip provider? Someone has mentioned that this could be happening to get into banks , homes, anything really. If you hack could you please tell me how to fix this. As we said we are stumped? Thanks Dave Toronto, Canada |
#2
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In article 547a2f1e-d012-44e8-b887-
, says... I have been getting sounds in our house that seems to come from electronic stuff around the house. I also listened to what sounded like voices coming from behind the computer? We as a Family are stumped. We have written Bell Canada as well as call there teck support, They don't understand what voice over ip provider? Someone has mentioned that this could be happening to get into banks , homes, anything really. If you hack could you please tell me how to fix this. As we said we are stumped? Thanks Dave Toronto, Canada Do you use dialup, with an internal modem? Modern telephone systems helpfully give a voice message for a busy signal. This would come through the sounder unit on the modem card: voice in the computer! |
#3
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I have been getting sounds in our house that seems to come from
electronic stuff around the house. I also listened to what sounded like voices coming from behind the computer? Voices coming out of loudspeakers or other electronic equipment which contains them, can occur as the result of strong radio frequency signals. A strong enough RF signal, modulated by someone's voice, can be picked up by the household wiring (mains cables, telephone wire, speaker cables, etc.) and leak into the electronic equipment. Once inside the equipment, it can be accidentally "detected" (converted from radio frequencies back to audio) by semiconductors in the circuitry, amplified, and played out through the equipment's speakers. Telephones, answering machines, baby monitors, powered subwoofers, computer speaker systems, etc. can all be prone to this. I suppose that an internal modem card in a PC - one with a loudspeaker - could pick up enough RF via its phone-line connection to start detecting audio in this way. The strong RF signal might come from any of a number of sources... all probably fairly close to the house. Commercial AM transmitters can cause this, as can ham-radio transmitters, and CB radios. Here in the U.S., *legal* CB transmissions usually aren't strong enough to cause problems, but some CB operators use illegal high-power amplifiers that can boost the signal far enough to cause this sort of inadvertent pickup. I don't know what the law is about this sort of problem in Canada. Here in the U.S., the FCC generally considers it to be a defect in the equipment which is picking up the RF - if a device isn't *supposed* to be a radio, it shouldn't *behave" like a radio, is their thinking. It's referred to as "undesired operation", and the "Part 15" notice which comes with most consumer electronic devices says that the device "must accept radio frequency interference, including that which causes undesired operation." There are several ways to address the problem: - Replace the RF-sensitive devices with better-designed devices that don't have the problem. - Add RF filters or chokes to the phone lines, speaker cables, power lines, etc. to block the RF before it enters the equipment. - Find the person or company whose transmitters are generating the RF, and ask them to stop (they'll probably refuse, as they often have a perfectly good legal license to transmit). - Live with it. - Move. If you can find which pieces of equipment are picking up the RF (and, in doing so, confirm that this is the problem) you can likely correct the problem with some clamp-on ferrite chokes, and/or a telephone-line RF filter (a DSL mini-filter may well do the job). See http://www.palomar-engineers.com/RFI_Kit/rfi_kit.html for a kit of ferrite components specifically intended for this sort of household problem. I'm not sure what connection there might be between the voices/noises you are hearing, and any "voice over IP provider". Your message isn't clear whether you actually have telephone service over IP, or whether you think someone else's voice-over-IP service is affecting you accidentally (very unlikely, in my opinion). -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
#4
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Dave,
Give us a little more information: - are the sounds continuous? or only happen at certain times of the day? - is it really voices? what does it sound like? - "seems to come from electronic stuff around the house?" What kinds of stuff? Only the PC? - do you hear the sound even when the "stuff" is turned off? Some very strong signals can by heard through stereo speakers even if the stereo is not running. - "coming from BEHIND the computer?" In other words, not from the computer's speakers but somewhere else on the computer? - How is your PC connected to the Internet: dial-up over phone lines? Cable TV modem? Phone company DSL? A few troubleshooting hints: Some people living near Radio or TV stations can hear those stations in electronic devices (phones, stereos, computer speakers). IF the sounds are continuous, that may be the source. If the sounds are not continuous, but only heard once in a while, the sounds are more likely coming from some intermittent source. Perhaps a taxi cab or trucking company radio, a local CB or Ham radio operator... something like that. Can you actually hear a voice, or does it sound like "Donald Duck?" If the voice is intelligible, it is more likely a CB operator running AM (amplitude modulation, the dominant mode on CB); whereas if it sounds like "Donald Duck" talking, it may be a Ham Radio running SSB (single sideband, the dominant mode on amateur radio). As Dave Pratt mentioned in his excellent reply, there are ways to filter out unwanted stray RF energy.... but first you need to understand the source and how/where it is getting into your "stuff". In my opinion, there is no way that VoIP (Voice over IP) could cause this problem... for a whole bunch of geeky reasons. You need to look somewhere else for the culprit. -- -larry K8UT "gumbyridespokey" wrote in message ... I have been getting sounds in our house that seems to come from electronic stuff around the house. I also listened to what sounded like voices coming from behind the computer? We as a Family are stumped. We have written Bell Canada as well as call there teck support, They don't understand what voice over ip provider? Someone has mentioned that this could be happening to get into banks , homes, anything really. If you hack could you please tell me how to fix this. As we said we are stumped? Thanks Dave Toronto, Canada |
#5
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hey OM:
I know the fix;get about 100ft roll of chicken wire. around your computer built a small closet sized room with a door all from the chicken wire. when you bring in the power lines put emi filters and hash filters on the AC line. when bringing in the coax cable to the modem put clamp on ferrite filters over the coax. use the shortest possible lan cable to the computer from the modem. and then make sure you ground the chicken wire to a good cold water pipe another thing voip phone service can't be demodulated with anything but a voip box. the modulation techniques they are using can't demodulated except with a voip box. And when they are in RF form the cable modem has to demodulate the cable signals. 73 OM de n8zu On Jun 8, 9:07*am, "Larry Gauthier \(K8UT\)" wrote: Dave, Give us a little more information: - are the sounds continuous? or only happen at certain times of the day? - is it really voices? what does it sound like? - "seems to come from electronic stuff around the house?" What kinds of stuff? Only the PC? - do you hear the sound even when the "stuff" is turned off? Some very strong signals can by heard through stereo speakers even if the stereo is not running. - "coming from BEHIND the computer?" In other words, not from the computer's speakers but somewhere else on the computer? - How is your PC connected to the Internet: dial-up over phone lines? Cable TV modem? Phone company DSL? A few troubleshooting hints: Some people living near Radio or TV stations can hear those stations in electronic devices (phones, stereos, computer speakers). IF the sounds are continuous, that may be the source. If the sounds are not continuous, but only heard once in a while, the sounds are more likely coming from some intermittent source. Perhaps a taxi cab or trucking company radio, a local CB or Ham radio operator... something like that. Can you actually hear a voice, or does it sound like "Donald Duck?" If the voice is intelligible, it is more likely a CB operator running AM (amplitude modulation, the dominant mode on CB); whereas if it sounds like "Donald Duck" talking, it may be a Ham Radio running SSB (single sideband, the dominant mode on amateur radio). As Dave Pratt mentioned in his excellent reply, there are ways to filter out unwanted stray RF energy.... but first you need to understand the source and how/where it is getting into your "stuff". In my opinion, there is no way that VoIP (Voice over IP) could cause this problem... for a whole bunch of geeky reasons. You need to look somewhere else for the culprit. -- -larry K8UT"gumbyridespokey" wrote in message ... I have been getting sounds in our house that seems to come from electronic stuff around the house. I also listened to what sounded like voices coming from behind the computer? We as a Family are stumped. We have written Bell Canada as well as call there teck support, They don't understand what voice over ip provider? Someone has mentioned that this could be happening to get into banks , homes, anything really. If you hack could you please tell me how to fix this. As we said we are stumped? Thanks Dave Toronto, Canada |
#6
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In article
, raypsi wrote: another thing voip phone service can't be demodulated with anything but a voip box. the modulation techniques they are using can't demodulated except with a voip box. And when they are in RF form the cable modem has to demodulate the cable signals. BS... there are plenty of Computer Apps that can demod VoIP streams, and None of those are VoIP Boxes...... |
#7
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On Jun 12, 3:45*pm, You wrote:
there are plenty of Computer Apps that can demod VoIP streams, and None of those are VoIP Boxes...... Hey OM: Plenty? Name 5 of those so called computer apps. 73 OM de n8zu |
#8
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raypsi wrote:
On Jun 12, 3:45Â*pm, You wrote: there are plenty of Computer Apps that can demod VoIP streams, and None of those are VoIP Boxes...... Hey OM: Plenty? Name 5 of those so called computer apps. 73 OM de n8zu Go to freshmeat.net and type VOIP in the search box. -- Jim Pennino Remove .spam.sux to reply. |
#9
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On Jun 15, 1:15 am, wrote:
raypsi wrote: On Jun 12, 3:45 pm, You wrote: there are plenty of Computer Apps that can demod VoIP streams, and None of those are VoIP Boxes...... Hey OM: Plenty? Name 5 of those so called computer apps. 73 OM de n8zu Go to freshmeat.net and type VOIP in the search box. Hey OM: That's rich, a hacker putting a SIP program that can access a VIOP stream then somehow miraculously transduce the SIP VIOP into acoustic energy out the back of his computer. All those programs you need a sound card and speakers or headphones. But hey maybe the hacker is using the modulating the case fans to make audio out the back of his computer.? He didn't say the voices were coming out his speakers. How else is audio voices coming out the back of his computer? And through out his house? He sure doesn't have SIP VIOP software in his CD player? Just tell me how to get SIP VIOP software into my cd player? 73 OM de n8zu |
#10
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"raypsi" wrote in message
... On Jun 15, 1:15 am, wrote: raypsi wrote: On Jun 12, 3:45 pm, You wrote: there are plenty of Computer Apps that can demod VoIP streams, and None of those are VoIP Boxes...... Hey OM: Plenty? Name 5 of those so called computer apps. 73 OM de n8zu Go to freshmeat.net and type VOIP in the search box. Hey OM: That's rich, a hacker putting a SIP program that can access a VIOP stream then somehow miraculously transduce the SIP VIOP into acoustic energy out the back of his computer. All those programs you need a sound card and speakers or headphones. But hey maybe the hacker is using the modulating the case fans to make audio out the back of his computer.? He didn't say the voices were coming out his speakers. How else is audio voices coming out the back of his computer? And through out his house? He sure doesn't have SIP VIOP software in his CD player? Just tell me how to get SIP VIOP software into my cd player? 73 OM de n8zu It's not uncommon for AM radio or CB to be induced into wiring and demodulated simply by rectification. The result may be strong enough to activate computer or stereo speakers or the little transducer on dial-up modem cards or even metal flashing in the house. |
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