UltraEcho 2009Aug10: Difference between revisions

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Another heterodyne [http://cgi.ebay.com/BX-1-Ultrasonic-Bat-Insect-Rodent-Bird-Sound-Detector_W0QQitemZ260460434763QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ca4a6d54b&_trksid=p3286.c0.m14 eBay guy who builds them]
Another heterodyne [http://cgi.ebay.com/BX-1-Ultrasonic-Bat-Insect-Rodent-Bird-Sound-Detector_W0QQitemZ260460434763QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ca4a6d54b&_trksid=p3286.c0.m14 eBay guy who builds them]


[http://njsas.org/projects/bat_detector/01/sk207_sch.html heterodyne], [http://home.earthlink.net/~bat-detector/TheBatShop.html frequency division],
[http://njsas.org/projects/bat_detector/01/sk207_sch.html heterodyne], [http://home.earthlink.net/~bat-detector/TheBatShop.html frequency division].
 
We hooked the speaker in the Secret Sounds toy up to frequency generator.


==Goal==
==Goal==

Revision as of 21:12, 10 August 2009

Ultrasonic Listening & Echolocation Hack Notes for August 10th, 2009

Eric and David have agreed to meet regularly on Monday nights to hack on the ultrasonic listening and echolocation kit idea/project. Tonight's goal: review all that we know, brain storm, and decide on a plan of attack for moving forward: what do we want to do/try first?

Review

  • we have what we think is a non-tunable hererodyne ultrasonic listening toy
  • there are also frequency division & time expansion techniques/kits/products
  • we know little about the Spanish scientists who are training people to do echolocation by clicking their palates
  • there are also interesting "directional sound" sensors & displays

Research

Another heterodyne eBay guy who builds them

heterodyne, frequency division.

We hooked the speaker in the Secret Sounds toy up to frequency generator.

Goal

A ultrasonic ranging device usable by blind people - or others who are interested.


Ideas for Moving Forward

  • we could investigate what frequencies it does operate with
  • we could order some kits or build our own
  • we could find out more, do more research about what academia/the internet knows
  • we could build the Arduino 3D sound compass display