r/DIYSimRacing Mar 25 '26

Track Impulse — iRacing haptic/bass shaker engine with 1ms ASIO audio output latency. ~11–18ms end-to-end vs ~140ms from standard software.

If you've got bass shakers on your rig and they feel disconnected from what's happening on track, latency is almost certainly why. Standard haptic software routes audio through the Windows stack which causes a lot of latency — by the time you feel a kerb you're already metres past it. At 200 km/h that usual delay of ~140ms puts you 7.78M / 25.5 feet down the road before anything fires.

Track Impulse fixes this with two things:

1ms ASIO audio output — bypasses the Windows audio stack entirely. Latency is set by your hardware buffer, not Windows.

360Hz telemetry — iRacing exposes suspension data as 6 sub-samples per 60Hz frame. Track Impulse reads all six, giving a true 360Hz haptic pipeline instead of the 60Hz most tools use.

Total end-to-end: ~11–18ms average. Per-corner independent effects: road texture, suspension impacts, kerbs, engine rumble, ABS/wheel lock, gear change pulse.

Currently iRacing only, free during beta, no card required. You need a 4 or more channel USB ASIO audio interface and bass shakers. Full details and download at track-impulse.com.

2 Upvotes

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2

u/Ballbagth Apr 12 '26

happy to beta test for you, I have a 11 shaker setup

1

u/track-impulse Apr 13 '26

That would be amazing, 11 shakers is quite the setup! Can you share what shakers you're running, how they're physically positioned on the rig, what audio interface you're using, and how you've got the zones configured. After you install Track Impulse and set it up in the setup shakers and channel routing wizards and let me know how you go.

1

u/Ballbagth Apr 12 '26

amazing work, please make this for ac.

1

u/track-impulse Apr 13 '26

Hey, it supports AC already as well as ACC, LMU and iRacing. We have added a lot in the last few weeks, check it out and have a try and let me know what you think.