Laser Microphone
From HeatSync Labs Wiki
Revision as of 12:50, 10 June 2010 by 64.38.194.13 (Talk)
Random Thoughts
- notch filter to block 60hz hum
- bandpass filters to block out all but voice range.
- Possibly adjustable in case someone's voice is deeper/higher
Notch Filter
- http://www.members.shaw.ca/roma/nine.html
- Has schematics specifically for 60hz hum
- Might also be an amplifier
