ahkoncha-
2 Mic amplifier circuit
09/21/2015 at 16:15 • 0 comments![]()
Another TL074 is used with the same circuit for the remaining 2 channels.
Wiring diagram with the beaglebone is available on our github page: https://github.com/ap1/PixeeBel/blob/master/code/bbb_schematics/wiring.txt
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Spectrum analyzer and real-time audio capture working
09/21/2015 at 16:00 • 0 commentsSpectrum analyzer and volume based simple direction identification running. Noise needs to be profiled and eliminated for better quality output.
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Visualization on screen is working!
09/20/2015 at 22:14 • 0 commentsVisualization on screen is working!
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3D printed device working
09/20/2015 at 22:13 • 0 comments3D printed device working
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Integration with Beaglebone Black working!
09/13/2015 at 01:30 • 0 commentsFinally have audio capture working on beaglebone. The code requires a lot of cleaning up and optimization. Audio capture happens in realtime by programming one of the two PRUs (microcontrollers on the processor SoC).
Helpful links for getting this working:
1. pru-sdk
https://github.com/texane/pru_sdk2. TI PRU Code Generation Tools
http://software-dl.ti.com/codegen/non-esd/downloads/download.htm#PRU![]()
And some sample capture data.
Graph plotted using gnuplot.![]()
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Added a video link!
08/17/2015 at 20:49 • 0 commentsAdded a video link!
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Entered the project in 2015 Hackaday prize!!!
08/17/2015 at 16:34 • 0 commentsEntered the project in 2015 Hackaday prize!!!
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Added system design document
08/17/2015 at 16:33 • 0 commentsAdded system design document.
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Added component details
08/16/2015 at 06:05 • 0 commentsAdded component details
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Added Github repository link
08/16/2015 at 06:04 • 0 commentsAdded Github repository link
PixeeBel
pixel-see-decibel: sound localization and characterization on screen
And some sample capture data.