Real heartbeat of a sixteen year old male (tall slender build). It is irregular, fast, and loud. This one minute cassette tape recording was done with a microphone on the chest over the tricuspid valve region near the left sternal border. 不規則的心跳 聲道:2 類型:wav heartbeat、irregular、pulse、heart-beat、heart 心跳、不規則、脈衝、心臟搏動、心 資料來源:freesound ( https://freesound.org )