**`heart_low_loop`** `[LOOP]` — A single human heartbeat thudding
slowly at around 50 beats per minute, the kind heard in your own ears
when you're dreading something. Sub-bass weight, no other sound.
Seamless 4-second loop.
0:10
Slow, deep thumping heartbeat. Increasing speed, intense, muffled, inside chest.
Fast-paced human heartbeat loop, rising tension, cinematic and realistic, steady rhythm, no distortion, suitable for anxiety or urgency scenes
0:15
{ "action": "video_generation.generate_video", "action_input": { "prompt": "extended duration of a clean, rhythmic fetal heartbeat at 147 BPM, no background noise, no static, pure isolated rhythmic beating, video language Portuguese" } }
0:10
Female, heavy sensual breathing, heartbeat sound
0:10
Muffled heartbeat (slow → accelerating)
0:10
The growl fades into a rhythmic, hypnotic heartbeat.
0:10
a shy heart pulsing fast and louder and then gets louder till the person's chest moves.
![**`heart_low_loop`** `[LOOP]` — A single human heartbeat thudding
slowly at around 50 beats per minute, the kind heard in your own ears
when you're dreading something. Sub-bass weight, no other sound.
Seamless 4-second loop.](https://sounds.sfxengine.com/sound-effect-images/se_cxmpo5vzxmspvmup.png)
