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DTMF, Tone Detection notes
- The Goertzel Algorithm
- DFT - Discrete Fourier Transformation
- FFT - Fast Fourier Transformation
- Steve Underwood wrote the zapata Gorertzel DTMF detection stuff
10:57 <simon> has anyone tinkered with genetic algorithms? 11:05 <baud> yes 11:05 <simon> did the concept work well? 11:08 <baud> yep 11:08 <baud> for spamassassin score assignment 11:08 <baud> though it was slow 11:09 <simon> I have a number of processors to dedicate to the assignment ;) 11:09 <simon> I have a corups of recordings with real people and answering machines 11:10 <simon> and a function with about 5 variables for controlling detection of talking. 11:11 <baud> you might be better off with a perceptron 11:13 <simon> (quickly reads up on perceptrons) that sounds like a pretty good idea. 11:19 <simon> in this case though, I need to find the optimum settings for this one perceptron. 11:21 <simon> they define what is considered silence (ie. 200ms), the minimum and maximum length for something to be considered talking, and the amplitude required to be talking. 11:22 <simon> is that something that could be split into 4 perceptrons, or would I have to consider them as a whole? 11:50 <baud> you consider them as a whole 12:18 <simon> wouldn't it be nice(TM) if your laptop were an OpenMosix? node? 12:18 <simon> when you were attached appropriately, any heavy tasks you ran would automagically migrate off your laptop... 12:19 <simon> otherwise they'd just run locally. 12:19 <baud> Apple has some stuff for doing that 12:19 <simon> oh really? what's it called? 12:20 <simon> how about a screen saver that's a virtual machine and connects into a cluster? 12:22 <baud> Xgrid 12:22 <baud> http://www.apple.com/server/macosx/features/xgrid.html 12:26 <simon> that's pretty cool. 12:27 <simon> do you have anything for knowledge management? ;) 12:27 <baud> google 12:27 <kwbot> google is wonderful: "Why do Cylons wear skirts?" http://www.allscifi.com/board.asp?BoardID=290 12:29 * simon laughs. 12:30 <simon> I meant more for information gathered on a day to day basis. 12:30 <simon> like this conversation we're having here... 12:31 <simon> would you post it on the web, and then google your own domain for it lateR? 12:35 <baud> dunno... 12:35 <baud> wikis are good 12:36 <simon> that's what I was doing for awhile. 12:36 <simon> they get really messy quickly though. 12:37 <baud> true 12:37 <simon> if I had something monitoring me while i was adding an entry, suggesting other information it might work better. 12:38 <baud> ah, you want a HAL 12:38 <baud> HAL? 12:38 <kwbot> HAL is a virtual donkey or a bit of a slapper or gormless or a master of comic timing. or an ex-astronaut or a genius or ate all the doughnuts or a pig or Hardware Abstraction Layer or a twat 12:38 <baud> actually kwbot is good for these things 12:39 <baud> kwbot: Xgrid is apple's distributed computing platform 12:39 <kwbot> ok, baud 12:39 <simon> hehe, that's not fuzzy enough. 12:40 <simon> if kwbot then went and googled xgrid, and taught itself about what xgrid was, then maybe... 12:40 <baud> :) 12:40 <simon> I think what other people do is hire personal assitants :P 12:40 <baud> we just don't have strong enough AI for that yet 12:41 * simon returns to the task at hand. 12:42 <baud> writing a strong AI? ;-)
