Configure BLHeli ESCs with recorded PWM audio

I had a whole bunch of ESCs to configure and necessity is the mother of invention. As many have discovered, the new breed of high kv motors used in miniquads is very picky about the ESCs in use. Standard settings are often not enough. BLHeli offers the ability to set parameters by stick commands but that's a long and patience-trying exercise. The stick commands can be recorded in audio format and played back to the ESC, mimicking what you would do manually. I'd like to provide a library of PWM recordings at Rotorgeeks for the BLHeli crowd for useful things like motor config and reversing the spin direction. You should be able to run this from any device with audio output - computer, ipod, phone etc. Just take the ground to ESC ground and left or right signal to the ESC signal. If it doesn't respond, turn up the volume. The audio file used here is in this post http://www.rcgroups.com/forums/showth... This will set timing to medium high and turn demag compensation off.