UltraEcho 2009Aug10

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,

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