I am doing a special education project in Physic about the speed of sound. I will do some experiments to measure it. At the end my pupils should be able to build a little echolot. I want to have a very simple buildup, so I thought of doing it with the soundcard of a computer and python. This means that I want to use a mic to throw out a signal that gets saved by a speaker. Then I can calculate the distance with the time-difference and make a noise or something like that to know how far away the next wall is. The algorithm is very easy, but I do not have the know-how and the time to build a library that accesses the hardware.
Does anybody have some ideas how I can do this? A special library would be nice, that can access the soundcard and measure the time difference between two signals in realtime. I was thinking of a pulsing sinus made by the speaker of the soundcard (or maybe by an extern device with a fixed frequency) and measured by the mic. I had tested some things with aubio (http://aubio.org/) to calculate the time difference, but then I would have to write something like a deamon to handle the soundcard. And there is always the time problem, because it should do everything in realtime. Maybe someone knows a special library that does the most work for me. My main function should only do the calculation of the distance and get the time by a simple deamon, etc. wkr André _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
