Thanks for the feedback — we’re sorry this felt disappointing.This feature is very sensitive to setup. It often takes a bit of practice, a quiet room, and careful positioning of the phone’s microphone against the abdomen. Background noise (talking, movement, fans/AC), clothing layers, or a loose contact can easily overwhelm the sound you’re trying to capture.A few tips that usually help:•Try in a silent room and keep your body as still as possible for 30–60 seconds.•Remove thick clothing and press the phone’s bottom microphone area gently but firmly.•Slowly test different spots (small moves, a few centimeters at a time) and hold each position briefly before moving again.•Use headphones to hear faint sounds more clearly.If you’d like, email us at pulseyapp@gmail.com and we’ll share a short placement guide for your phone model and help troubleshoot.