Experiments
Correctly adjusting the Soundlazer
Now that people have starting playing with their Soundlazers, I wanted to take a minute to explain how to properly adjust the oscillator and PWM modulator. First, you will obviously need access to the Soundlazer board and also an Oscilloscope.
Ultrasonic Cone for focusing the audio beam
For those of you that have access to a 3D printer, you can print out this ultrasonic array to test the directional properties of ultrasonic waves. It uses sixteen (16) of the larger piezo emitters and focuses the beam very nicely. The 3D STL model can be found HERE: http://www.soundlazer.com/wp-content/uploads/UltrasonicHornArray.STL_.zip
WOW – What a ride!
Thank you to all the backers on Kickstarter for making this project a success. Only five more days to go but this project is already a great success. Remember Soundlazer will only be available through Kickstarter so pledge now if you want one of your own.
Gizmodo likes the Soundlazer but what a tough bunch of bloggers!
OK, so I read from a printout above the camera. I didn’t have a teleprompter handy and I hate being on camera. This is actually something I want to work on and hope to shoot some more videos to get over my nervousness. Gizmodo had some great ideas for using the Soundlazer that I haven’t [...]
First parametric test with DSP added to the prototype.
This improved circuit incorporates a DSP (digital signal processor) with a 40KHZ ultrasonic parametric array. By adding compression and equalization, the quality of the audio signal is greatly improved. This audio or video has not been edited. You are hearing and seeing the results of parametric sound waves The ADAU1701 DSP chip processes the [...]
