2 articles tagged with #ultrasonic. AI-curated summaries with sentiment analysis and key takeaways from 50+ sources.
Researchers developed SWhisper, a framework that uses near-ultrasonic audio to deliver covert jailbreak attacks against speech-driven AI systems. The technique is inaudible to humans but can successfully bypass AI safety measures with up to 94% effectiveness on commercial models.
A new AI-accelerated workflow combining cloud-based FEM simulation with neural surrogates enables MEMS engineers to optimize piezoelectric micromachined ultrasonic transducers (PMUTs) for biomedical applications in minutes instead of days. The MultiphysicsAI system achieves 1% mean error and delivers significant performance improvements including increased fractional bandwidth from 65% to 100% and 2-3 dB sensitivity gains.
