Car stereo frequency blocker

Hi, I have this problem:

I live in a neighborg where some guys use to pass with car stereos playing music at such a high volume that my windows start shaking...seriously!....well what I'm looking (I hope it exists) for a device which can block their radio or car stereo just when they pass by in front of my house...not that I want to broke their stereos down...just some kind of "dead spot" for their car stereos to stop making noise!

I need help and this group seemed to me that could help me...or maybe not, in any case please let me know if I'm at the wrong place or where can I find what I'm looking for ... if such a thing exists?

Thanks to all

Reply to
dukiteco
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Overlooking the fact that it's a crime, you'd have to jam the whole FM broadcast band, which would not go well with your neighbors. Even that wouldn't disable boom cars that were playing from CD, tape or MP3 sources. If the boomers are annoying enough people, you might get together and agree to call in simultaneous complaints to the police, assuming that there is a local noise ordinance. Repeated complaints, from enough different people, will eventually draw some action. Don't try it alone, or you'll tag yourself as a troublemaker. I can't think of anything else that doesn't involve at least one felony.

Reply to
Stephen J. Rush

What is a "neighborg"?

Bob

Reply to
Bob

evice which can block their radio or car stereo just when they pass> by in = front of my house...not that I want to broke their stereos

g noise!

Re: Audio Stimulus Dependency Disorder

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See this one, where in a hate mail a 15-year-old girl in Australia gushes with

enthusiasm over the "an energy flowing through our blood!"

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Reply to
Old Mac User

"Welcome to our street. Here, I baked you this plate of cookies. Resistance is futile; you WILL be assimilated..."

Bob M.

Reply to
Bob Myers

Well, barring calling the gendarmes for noise ordinance violations, I suggest something like this:

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You walk up to the offending car, and blast it in their window. You might want to bring a hammer, if they have their windows closed.

Good Luck! Rich

Reply to
Rich Grise

First of all, I see we all had, dealt with the "boom car boy/girl" issue. Because I live outside United States and I didn't know you call it that way, no need to mention how good it describes their lack of selfesteem. Here's what I wanted to say to the ones who took the time for answer my post:

Stephen J. Rush:

Thanks man, serously! you'd probably thought I was some kind of guy who was trying to plan a crime, but you get quite serious and make what I call a very politically correct answer, and good one too, I mean it. When I wrotte this post last night in some sort of "desperate situations needs desperates measures". That was all.

Old Mac User:

Thank you man! Your post put a nice and selected piece of information for this subject. And by the way I'm 27.

Rich Grise:

I bought it today...let's hope they have their windows down! hehe...thanks!

Bob:

You just didn't make it....sorry.

Peace out.

Thanks again!...If I find a devive I'll let you know... :D

Reply to
Ed

And jamie...when you're right, you're right.

Peace

Reply to
Ed

and most likely they are listening to CD's, not the radio.

--
"I\'m never wrong, once i thought i was, but was mistaken"
Real Programmers Do things like this.
http://webpages.charter.net/jamie_5
Reply to
Jamie

from an old freinds sigfile:

I am Dyslexic of the Borg: Prepare to have your ass laminated!

--
Service to my country? Been there, Done that, and I\'ve got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
Reply to
Michael A. Terrell

Now THAT's funny!

Reply to
Lord Garth

Glad you enjoyed it. :)

--
Service to my country? Been there, Done that, and I\'ve got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
Reply to
Michael A. Terrell

What does "Peace out" mean? What's a "devive"?

Bob

Reply to
Bob

It's today's kidspeak for "Best Regards", or "Cheers!".

Probably a typo of "device".

Cheers! Rich

Reply to
Rich Grise

It's antique language (60's) for good bye.

Reply to
Homer J Simpson

also, most of the loud ones aren't playing broadcast music.

Bye. Jasen

Reply to
jasen

On Apr 4, 2:15 pm, snipped-for-privacy@gmail.com wrote:

Despite comments in other posts it IS possible to fix your problem if he is listening to an FM station.

What u have 2 do is find which radio station he is listening to, and broadcast him a stronger signal that his receiver will lock onto in preference to the radio station. so long as u use a directional antenna aimed at the car, then none of your side neighbours need be affected.

To fully automate the proceedure is going to be expensive though. Have an FM receiver that can scan the band on computer command. Store the received audio in your computer with both time and frequency information. Have a microphone listening to the offending car. Once it is determined that the volume is exessive your radio receiver scans the band and compares the audio from the microphone with the audio via your FM receiver. Once a match is found between the two audio signals you have found what station he is listening to. Now you can do whatever you please with the info. You could transmit just the FM carier frequency for his station which is equivalent to SILENCE, or you could be more ingenious. I take it that the offender is a regular one? Suppose that he comes the same way evey time. You could park your car 1/2 mile up the road in the direction he comes from. When your gear is ready to turn on your transmitter you also turn on some flashing lights and a siren on your car(via a CB radio link) and with your FM transmitter aimed at him, broadcast a prerecorded message that goes as follows "This is the Audio Police. Your listening pleasure has been interupted because you are disturbing the whole neighbourhood. Unless you turn your volume way down we will send you some real powerful bass that will burn out your boom box, but not before it blasts you through the windscreen. After this message you have 4 seconds to respond. On future occasions there will be no prior warning before you are blown up"

The reason for the computer is the tricky signal processing to get the audio match. Because of the variable distance to the car there will be a variable time delay between the audio from the FM and that from the car. It will be necessary to perform the mathematical operation of convolution between the two signals. This will need a reasonable processor power in the absence of a dedicated DSP and some efficient coding for the convolution program. You might need to upgrade your PC to a quad core. Rgds Roy

Reply to
royedmun

Hi' Roy here. I meant to post the 1st message to the group, but hit "send" instead.

Could you plse put a copy there? Its my 1st time on the system

Reply to
royedmun

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