# New Plug-in: Path Delay
**URL:** https://forum.quantasylum.com/t/new-plug-in-path-delay/505
**Category:** Uncategorized
**Created:** [October 24, 2021, 12:37am UTC](https://forum.quantasylum.com/t/new-plug-in-path-delay/505 "2021-10-24T00:37:32Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@matt](https://forum.quantasylum.com/u/matt)
#### Post date: [October 24, 2021, 12:37am UTC](https://forum.quantasylum.com/t/new-plug-in-path-delay/505/1 "2021-10-24T00:37:32Z")
Release 1.13 will be out next week, and it has a new plug-in that should prove useful for measuring path delays in device with digital processing. See "Automated Tests → MISC Path Delay
More details on the usage below. This should let you get +/- 10 uS accuracy on path delays up to about 1.2 seconds. Some changes were done to de-skew the inherent hardware delays, so if you’ve been developing code that worries about path delays, what you see in 1.13 will show some changes there.
> **[Path Delay · QuantAsylum/QA402 Wiki](https://github.com/QuantAsylum/QA402/wiki/Path-Delay)**
>
> Releases (no source) for the QA402 Audio Analyzer. - Path Delay · QuantAsylum/QA402 Wiki
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### Author:  [@1audio](https://forum.quantasylum.com/u/1audio)
#### Post date: [October 24, 2021, 4:28pm UTC](https://forum.quantasylum.com/t/new-plug-in-path-delay/505/2 "2021-10-24T16:28:00Z")
Is there a plan to “backport” these plugins to work with the QA401?
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### Author:  [@matt](https://forum.quantasylum.com/u/matt)
#### Post date: [October 25, 2021, 4:41pm UTC](https://forum.quantasylum.com/t/new-plug-in-path-delay/505/3 "2021-10-25T16:41:59Z")
Hi @1audio, the QA40x software will run the QA401 at some point. I think the last release [1.12](https://github.com/QuantAsylum/QA402/releases/tag/1.12) allowed you to specify `-QA401` on the command line and then you could control the relay on the QA401. it’s not much (yet!), but it’s a first test to make sure the pieces are integrated correctly. Prior to the QA402, everything needed a driver, and from the QA402 and later it’s driverless. So, there’s a bit to sort out there. But it seems to be going smoothly.
Ultimately, the software for the QA402 will run the QA401, QA402, QA403, etc.
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### Author:  [@1audio](https://forum.quantasylum.com/u/1audio)
#### Post date: [October 25, 2021, 8:43pm UTC](https://forum.quantasylum.com/t/new-plug-in-path-delay/505/4 "2021-10-25T20:43:44Z")
That’s great news. I know there are some significant differences between QA401 andQA402 but having a common UI/control means we would not lose out of some of the new stuff. Supporting the QA400 is probably not possible I gather due to the USB interface it uses.