Heart sound recordings

De-identified APTM clips published from the StetoRadr Android app. The public catalog shows only research-safe labels (CHD category, sex, age band, and optional recording context). Identifiable collection tags stay in the authenticated admin data view.

Each clip follows the APTM protocol (aortic → pulmonic → tricuspid → mitral). Use these samples for training familiarity and research preview—not for clinical diagnosis.