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Thread: Speed dependant volume

  1. #1
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    Speed dependant volume

    Hey Folks!
    Here's a nice little idea for ME,
    How about getting speed information from the GPS and using it to increase/decrease the volume.
    You know like in a decent car stereo there is a feed to the speedo.
    It means that as the road noise goes up the volume increases to compensate.
    Wouldn't have a clue how to code it, I am just an ideas hamster, but if anyone else knows how to I think it would be great.
    Of all the things I've ever lost my sanity was the hardest to deal with

  2. #2
    Maximum Bitrate SjLucky's Avatar
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    why use the gps for the speed?
    find out where your speed sensor is piggy back the signal. You programmers can work out the rest of it.
    Quote Originally Posted by menudude View Post
    thank you all for your help minus the useless post by sjlucky...

  3. #3
    Low Bitrate Linus's Avatar
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    Quote Originally Posted by SjLucky
    why use the gps for the speed?
    find out where your speed sensor is piggy back the signal.
    Why use your speed sensor to get an idea of the volume you need to compensate for when you can use a microphone? If you put a mic somewhere that would be more affected by wind and road noise than your music, all you'd have to do is code a simple plugin that increases the output, say, .5 dB for every additional 1dB the mic picks up. I think there are even how-to's on the web for noise-cancellation circuits.

  4. #4
    Maximum Bitrate SjLucky's Avatar
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    what keeps the circuit from pickin up your music as the noise? if that was the case then you would blow everyone of your speakers and might cause some earing damaged if it isnt shut off quickly.

    For me it would just be hella simple to piggy back the speed sensor but thats my deal
    Quote Originally Posted by menudude View Post
    thank you all for your help minus the useless post by sjlucky...

  5. #5
    Low Bitrate Linus's Avatar
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    Quote Originally Posted by SjLucky
    what keeps the circuit from pickin up your music as the noise?
    I'll bet a sensor outside the cab would pick up way more wind and road noise than speaker sound, above like 40mph anyway.

    You could probably also devise a circuit to put a microphone in the cabin and subtract the signal sent to the speakers so you're only picking up road noise. Similar to noise-cancelling headphones, but cancelling the speaker sound from the mic signal.

    But you're right, the simplest way is to relate volume to speed.

  6. #6
    Maximum Bitrate SjLucky's Avatar
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    I know... Im allways right... just no one listens...

    but the bottom line is they do the same thing its just a question of how you want to do it.
    Quote Originally Posted by menudude View Post
    thank you all for your help minus the useless post by sjlucky...

  7. #7
    I'm sorry, and you are....? frodobaggins's Avatar
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    I like to adjust mine manually, can't stand anything to mess with my volume..ugh
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  8. #8
    Maximum Bitrate GingerPrince's Avatar
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    Quote Originally Posted by Linus
    I'll bet a sensor outside the cab would pick up way more wind and road noise than speaker sound, above like 40mph anyway.
    You'd need a very low sensitivity (and presumably expensive) microphone to work outside your car. Try taking a normal mic and blowing close up to it, you'll max it out and it'll clip instantly. The wind outside your car will be far greater. You'd probably have to put a 12" sub on your roof and hook that up as the mic

    GingerPrince

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  9. #9
    I'm sorry, and you are....? frodobaggins's Avatar
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    Quote Originally Posted by GingerPrince
    You'd probably have to put a 12" sub on your roof and hook that up as the mic
    Don't give them any ideas
    [H]4 Life
    My next generation Front End is right on schedule.
    It will be done sometime in the next generation.
    I'm a lesbian too.
    I am for hire!

  10. #10
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    I thought my idea was good for a number of reasons...
    people already have GPS's in their car, and it would be an additional function that would be
    1. Cost free,
    2.Flash,
    3. Simple,
    4. Require no additional hardware.
    Is it possible.
    Could it be configured so you adjust how much it increments/decrements volume?
    Thanks,
    Gavin
    Of all the things I've ever lost my sanity was the hardest to deal with

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