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Old 20-03-2006, 12:22 PM   #1
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Intercom

I see Lidil are having a "Bike Week" instore starting today 20th March.
They are doing headset Intercoms at 4.99 its cheap how it would stand up to time is a guess but it's less than a fiver if anybody is looking.

Edit: your starter for 10 where I'm going after work

Edit2: here is the link
http://www.lidl.co.uk/gb/home.nsf/pa...ee_Speaker_Set
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Old 20-03-2006, 01:52 PM   #2
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I've got a 10 intecom and its fine when the boats not moving but at all other times you can't make out what the other person is saying from the wind noise, that with closed face helmets on.

It makes a lovely screeching noise too sometimes for no reason whatsoever.

In short, its crap!!!
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Old 20-03-2006, 10:32 PM   #3
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Im sure I wouldnt want to be going down the start run next to you if you were relying on a 4.99 intercom!!!
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Old 20-03-2006, 10:38 PM   #4
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Was for the bike, never found one that held up in the boat.
Anyway JBD is right crap can't hear diddly above about 55-60 whistles like crazy at 70 (ish)
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Old 23-03-2006, 10:05 PM   #5
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Quote:
Originally posted by BluFin
Was for the bike, never found one that held up in the boat.
Anyway JBD is right crap can't hear diddly above about 55-60 whistles like crazy at 70 (ish)
Best intercom I found for racing was the Graytronics sysytem. Are they still about?
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Old 23-03-2006, 10:14 PM   #6
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Quote:
Originally posted by SplitPin
Best intercom I found for racing was the Graytronics sysytem. Are they still about?
Don't make them at the moment, spoke to Bob today and he says they will make some in a few months but they always say that and it never happens
I've been waiting for 5 months to have mine fixed
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Old 23-03-2006, 10:16 PM   #7
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I run Greytronics there the bollox!
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Old 23-03-2006, 10:30 PM   #8
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Graytronics have noise cancelling, anyone know how that works?
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Old 23-03-2006, 10:34 PM   #9
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Quote:
Originally posted by Johnny Boat Dude
Graytronics have noise cancelling, anyone know how that works?
Are you going to tell us JBD?
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Old 23-03-2006, 10:39 PM   #10
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Quote:
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Are you going to tell us JBD?
He doesn't know, thats why he asked
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Old 23-03-2006, 10:47 PM   #11
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I dont know myself!!!

Band pass filter? 300Hz to 3.4KHz range like a telephone maybe? That would cancel out alot of the noise but I guess wind noise is like white noise and white noise covers a very broad frequency spectrum including the range mentioned above. So you would still get some noise.

Anybody else?
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Old 24-03-2006, 12:59 AM   #12
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If it's anything like noise cancelling headphones, an aditional microphone listens to external noise, and generates the exact opposite signal, and feeds it back into the loop, this cancels out the external noise, leaving just the voice signal minus the extra external stuff.
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Old 24-03-2006, 01:07 AM   #13
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Quote:
Originally posted by Jon Fuller
If it's anything like noise cancelling headphones, and aditional microphone listens to external noise, and generates the exact opposite signal, and feeds it into the loop, this cancels out the external noise, leaving just the voice signal minus the 'distorsion'
you are corerct apart from a little Distortion!
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Old 24-03-2006, 01:25 AM   #14
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presumably, you aren't correcting my spelling, with your message containing the word "corerct"
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Old 24-03-2006, 01:59 PM   #15
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Quote:
Originally posted by Jon Fuller
If it's anything like noise cancelling headphones, an aditional microphone listens to external noise, and generates the exact opposite signal, and feeds it back into the loop, this cancels out the external noise, leaving just the voice signal minus the extra external stuff.
Yeah I had thought of that method but I wonder how it would cope with cancelling out a barrage of wind noise (white noise)?

Maybe that combined with a band pass filter would work?
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