The sound of inhaling a large breath of air followed by a tense, yet quiet, heartbeat sound with a deep rumble.
Some ideas of what this sound could be used for: a sniper holding his breath, someone diving into water or maybe someone trying to hide during a tense scene.
Sounds included in order of preview:
Sound 1 – Deep Breath with Heartbeat (0:12)
Files included are in WAV format.