Obfuscation is par for the F6 course.
Virtually all the engineers that loaf here have one or more horological software projects.
And counting/sampling isn't the most interesting of them.
None of the systems utilizing an onboard transducer are effective enough to be of any commercial benefit.
Most of the code - be it ported for whatever form factor - is only marginally productive even with a common external pickup.
On the other hand, when I couple a huge old crystal to the sound card or specially shielded, preamp driven USB mic - the gain jumps and or sharpness of the attack is accentuated and the wave markers can be be unmistakeably discerned.
Optimize the gain and filter the noise - then you'll have something - oherwise its more wheels.