sfx-Pulsing

https://elements.envato.com/dc-motor-small-1v-motor-various-bursts-2-FLRGTFZ

https://elements.envato.com/dark-sphere-aura-presence-GTFUQ9R

https://elements.envato.com/light-sphere-aura-presence-4RBSHZY

https://elements.envato.com/cinematic-heartbeat-QWEEFR8

https://elements.envato.com/heartbeat-metal-hit-RNQ9T8Y

https://elements.envato.com/reversed-heartbeat-XK2W4L9

https://elements.envato.com/lfe-pulsing-ring-out-01-a-3DCGM9S

https://elements.envato.com/lfe-pulsing-ring-out-01-b-K7GMNNG

https://elements.envato.com/lfe-pulsing-ring-out-02-a-3LK53NF

https://elements.envato.com/lfe-pulsing-ring-out-02-b-S6XHU94

https://elements.envato.com/motel-room-pulse-01-stereo-4ACZHCA

https://elements.envato.com/aliens-and-ufos-sounds-pack-G92ZTPL

https://elements.envato.com/chiming-synth-beeps-bell-like-pulsing-constant-2-5ZZPYUQ

https://elements.envato.com/metallic-synth-beeps-short-bursts-pulsing-1-CW7WBME

https://elements.envato.com/alien-game-robotics-airlock-open-1-mechanism-mecha-QW4FULT

https://elements.envato.com/alien-game-robotics-airlock-close-4-metallic-glitc-GDX9YPY

https://elements.envato.com/alien-game-robotics-airlock-close-1-metallic-glitc-29CBFMN

https://elements.envato.com/alien-game-robotics-airlock-close-3-metallic-glitc-2HMJYS2

https://elements.envato.com/alien-game-robotics-airlock-close-2-metallic-glitc-4V9EW8N

https://elements.envato.com/alien-game-robotics-alien-mechanism-2-metallic-gli-ZMVGUKH

https://elements.envato.com/alien-game-robotics-alien-mechanism-2-crafting-mys-FZUV6GF

https://elements.envato.com/alien-game-robotics-alien-mechanism-1-metallic-gli-QCJW8NQ

https://elements.envato.com/alien-game-robotics-airlock-open-4-metallic-glitch-RKJ76QS

https://elements.envato.com/alien-game-robotics-airlock-open-3-metallic-glitch-BZGKGAJ