informal tests with Blackberry show much improved response (i’m actually a bit surprised; i would have expected the Blackberry to be engineered to eliminate as much background noise as possible). Sounds lasting over about 1/2 second from what i could tell though were attenuated quite a bit. tests with 250ms per 100 hz step actually [...]
Entries from March 2008
Update to frequency test
March 31, 2008
Cell Phone Frequency Test
March 31, 2008
Initial tests with LG8100 cell phone (my old skool phone), recording to WAVs on an Asterisk server. Purpose is to roughly determine usable frequencies via cellphone. Older references on POTS system indicate usable range is 300hz – 3khz; System uses XP100 card, echo cancellation enabled, no TX/RX gain, 5 seconds of pure (well, relatively pure [...]
Introducing the Apple Mail StupidFilter for Leopard
March 12, 2008
I have this affliction. it seems that it’s impossible to remember when replying to messages on several school lists that replies by default go to the list, not just to the person who sent the original message. so i’ve essentially ended up inviting the whole list to my place for the weekend, sent “i’m interested; [...]
Electronic “neurons”
March 10, 2008
So after doing a bit of digging around on BEAM robots, the swirlies visualization, etc. i started playing around more with the whole electronic neuron thing. since then i’ve been playing with a number of different configurations, pretty much all logic gates with RC circuit inputs. One of my favorite at this point is a [...]
Museum Visits: Guggenheim, Whitney
March 10, 2008
Steph and I have started trying to make it out to check out more museums lately. In the past few days we’ve hit the Guggenheim and the Whitney (planning to do AMNH this Weds, and soon the Met and PS1 and several others). Cai Guo-Qiang’s “I Want to Believe” @ the Guggenheim was fun, especially [...]
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