Sounds accelerating heartbeat with different ambient noise. Carefully! high frequency noise …
Included files:
Ambient Heartbeat (1) – 0:23 (clean – without noise)
Ambient Heartbeat (2) – 0:23
Ambient Heartbeat (3) – 0:23
Ambient Heartbeat (4) – 0:23
Ambient Heartbeat (5) – 0:23
Good luck!!!