An interesting non-intrusive approach to triggerbots using real-time audio FFT (Fast Fourier Transform):

1. Capture default audio output device via WASAPI loopback (IAudioCaptureClient).
2. Perform real-time FFT over 10ms audio buffers.
3. Enemy headshot hitmarkers and shield break sounds have distinct harmonic peaks (e.g. 2.4kHz and 4.8kHz bell dings).
4. When the spectral power exceeds threshold in target frequency bins, trigger auto-burst fire sequence.

Zero memory reads, zero screen captures, runs 100% via audio stream!

Super clever idea! Latency of WASAPI loopback is ~3ms which is fast enough for burst fire timing.

Great proof-of-concept for external assistive audio triggers.