On Thu, Mar 04, 2010 at 10:27:43AM +0000, Jonathan Gazeley wrote: > Yes - I have a cycle computer that can measure cadence. However, I > typically pedal between 60 and 90 rpm which means my reading would only > be available for sampling every 0.7 - 1.0s. It would work, but in the > space of one second my cadence can vary a lot if I'm accelerating so the > sound of the rising revs would be jumpy. > Also, if I suddenly stopped pedalling, it might take up to a second for > the sampler to register and kill the engine noise. I don't think it > would be a very satisfactory experience, which is why I was thinking of > mounting 10 or so magnets around the chainwheel, to be able to sample > the cadence every 0.1s. That would be a good rate. But for a realistic result you also need to measure the force you are putting on the pedals, or the chain tension - the noise of an engine depends very much on the amount of power it has to deliver. I've been working on engine noise simulation - it's not very difficult unless you want to exactly simulate an existing car. Ciao, -- FA O tu, che porte, correndo si ? E guerra e morte ! _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
