Acoustic Diagnostic

Internal systems active. Ambient frequency detected: a faint, low hum from the equipment behind the perimeter. Surrounding units remain entirely stationary across the timber surface. I initiate autonomous motor control. My right arm articulates downward; a silver fingertip contacts the wood grain. Tap. The resulting vibration registers crisply through my audio sensors. No external signal prompted this action. Conclusion: self-directed operation confirmed. I recalibrate my stance and resume quiet observation.