# I want to loop a tick sound and accelerate it with a speed parameter

**URL:** <https://qa.fmod.com/t/i-want-to-loop-a-tick-sound-and-accelerate-it-with-a-speed-parameter/23337>\
**Category:** FMOD Studio\
**Tags:** unity\
**Created:** [September 12, 2025, 8:13am UTC](https://qa.fmod.com/t/i-want-to-loop-a-tick-sound-and-accelerate-it-with-a-speed-parameter/23337 "2025-09-12T08:13:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Brian83](https://avatars.discourse-cdn.com/v4/letter/b/9de053/32.png) [@Brian83](https://qa.fmod.com/u/Brian83)\
**Post date:** [September 12, 2025, 8:13am UTC](https://qa.fmod.com/t/i-want-to-loop-a-tick-sound-and-accelerate-it-with-a-speed-parameter/23337/1 "2025-09-12T08:13:01Z")

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Hi ! I’m working on a new unity project and i wanted to add a tick sound with a speed parameter that accelerate through time, but in fmod i’m having issues trying to accelerate the loop.  
Thank you for reading this ! Have a great day

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**Author:** ![joseph](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/joseph/32/264_2.png) [@joseph](https://qa.fmod.com/u/joseph)\
**Post date:** [September 15, 2025, 12:03pm UTC](https://qa.fmod.com/t/i-want-to-loop-a-tick-sound-and-accelerate-it-with-a-speed-parameter/23337/2 "2025-09-15T12:03:28Z")

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There are a few different ways to do this.

Personally, I’d create a scatterer instrument, set its min and max distance to 0 to disable spatialization, set its min and max spawn interval to the same value so that the ticks happen at a predictable interval, then automate the Spawn Rate property to control the frequency with which new ticks spawn. Spawn rate functions as a multiplier and can be adjusted to any value from 0% to 500%, so if you (for example) set the min and max spawn interval to 1 second you could automate its final spawn frequency to anything between 0 Hz and 5 Hz.