Re: [LAU] A crazy idea

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To: Folderol <folderol@...>
Cc: <linux-audio-user@...>
Date: Friday, March 5, 2010 - 12:30 am

On Thu, 4 Mar 2010, Folderol wrote:

> Also, use a short range photocell on the spokes (say 50mm). Easy to

Sensing the spokes measures vehicle speed, not pedaling speed, you'd want
your synth to drop to idle while you're coasting. I'm for a photocell
watching the crank sprocket teeth in the rear interval where there's no
chain.
You also need to measure torque, or chain tension, to drive your synth's
volume. An idler with a load cell on the top of the chain between the
crank and the wheel can be used for a single-speed or three-speed in-hub
transmission, but if you have a rear derailleur, you'll need another fixed
idler between the sensor and the rear wheel. If you have a front
derailleur as well, it just gets too complicated...
Maybe the accelerometer is simpler after all, even if you have to
compensate for incline. That's just math, not hardware.

--
Rick Green

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-Benjamin Franklin

"As for our common defense, we reject as false the choice between our
safety and our ideals."
-President Barack Obama 20 Jan 2009
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Messages in current thread:
[LAU] A crazy idea, Jonathan Gazeley, (Thu Mar 4, 9:48 am)
Re: [LAU] A crazy idea, Joseph Sheedy, (Fri Mar 5, 7:15 am)
Re: [LAU] A crazy idea, andy baxter, (Thu Mar 4, 6:35 pm)
Re: [LAU] A crazy idea, Charles Henry, (Thu Mar 4, 3:04 pm)
Re: [LAU] A crazy idea, Charles Henry, (Thu Mar 4, 3:34 pm)
Re: [LAU] A crazy idea, Rick Green, (Thu Mar 4, 1:57 pm)
Re: [LAU] A crazy idea, Paul Davis, (Thu Mar 4, 3:00 pm)
Re: [LAU] A crazy idea, Rick Green, (Thu Mar 4, 11:13 pm)
Re: [LAU] A crazy idea, Paul Davis, (Thu Mar 4, 1:10 pm)
Re: [LAU] A crazy idea, Jonathan Gazeley, (Thu Mar 4, 1:16 pm)
Re: [LAU] A crazy idea, Karl Hammar, (Thu Mar 4, 12:37 pm)
Re: [LAU] A crazy idea, Gabriel M. Beddingfield, (Thu Mar 4, 2:09 pm)
Re: [LAU] A crazy idea, James Morris, (Thu Mar 4, 10:20 am)
Re: [LAU] A crazy idea, Jonathan Gazeley, (Thu Mar 4, 10:28 am)
Re: [LAU] A crazy idea, Folderol, (Thu Mar 4, 6:14 pm)
Re: [LAU] A crazy idea, Rick Green, (Fri Mar 5, 12:30 am)
Re: [LAU] A crazy idea, michael noble, (Fri Mar 5, 4:52 am)
Re: [LAU] A crazy idea, Jonathan Gazeley, (Fri Mar 5, 10:13 am)
Re: [LAU] A crazy idea, Gordon JC Pearce, (Fri Mar 5, 7:40 am)
Re: [LAU] A crazy idea, Rick Green, (Fri Mar 5, 6:41 am)
Re: [LAU] A crazy idea, , (Thu Mar 4, 11:32 am)
Re: [LAU] A crazy idea, Jonathan Gazeley, (Thu Mar 4, 11:39 am)
Re: [LAU] A crazy idea, , (Thu Mar 4, 11:54 am)
Re: [LAU] A crazy idea, Karl Hammar, (Thu Mar 4, 1:00 pm)
Re: [LAU] A crazy idea, Giso Grimm, (Fri Mar 5, 8:54 pm)
Re: [LAU] A crazy idea, Karl Hammar, (Fri Mar 5, 11:11 pm)
Re: [LAU] A crazy idea, tdrecordable, (Thu Mar 18, 1:31 am)
Re: [LAU] A crazy idea, Nick Copeland, (Thu Mar 4, 9:00 pm)
Re: [LAU] A crazy idea, , (Thu Mar 4, 9:30 pm)
Re: [LAU] A crazy idea, Nick Copeland, (Thu Mar 4, 10:13 pm)
Re: [LAU] A crazy idea, Jörn Nettingsmeier, (Fri Mar 5, 9:10 am)
Re: [LAU] A crazy idea, Arnold Krille, (Fri Mar 5, 8:29 am)
Re: [LAU] A crazy idea, Jörn Nettingsmeier, (Fri Mar 5, 9:12 am)
Re: [LAU] A crazy idea, Julien Claassen, (Thu Mar 4, 10:24 am)
Re: [LAU] A crazy idea, Jonathan Gazeley, (Thu Mar 4, 10:31 am)
Re: [LAU] A crazy idea, Julien Claassen, (Thu Mar 4, 10:40 am)
Re: [LAU] A crazy idea, Julien Claassen, (Thu Mar 4, 10:09 am)