AV Sync

Steve Denheyer

In-app purchases

About this app

AV Sync helps you correct Audio Video timing errors by analyzing a test signal - which consists of a short, synchonized flash and beep, an example of which can be found here.

It includes a Test Signal Generator tool, which can be used to correct delay in live applications.

Purchase app for advanced features:

- a selectable list of results (as shown in screenshot 2 above)
- show results in milliseconds, PAL or NTSC frames
- more configuration options

Ratings and reviews

Works great. My results are a bit surprising compared to my eyeball settings. I was also surprised to see the variation between different input devices (Zidoo, RoKu, ATV, etc). I'm assuming that there is some latency built into the phone, but I bet is is so small that it doesn't make a difference.

It actually works! Thank you! I would like to see a 60hz option in your YouTube video and maybe HDR/SDR as well as these could have different delays and could make it more accurate? Also maybe a longer, downloadable version for devices that don't have YouTube built in (my Blu ray player only had usb). A tip I found is to go right up to the screen while calibrating as it removes any variation like another review stated. Overall this is perfect.

Such a great idea, I'm really tempted purchase the pro version to show support. I can't help but wonder if my own phone has a certain amount of in built latency that is throwing off my results. Maybe a calibration mode using a couple of mirrors could help, using the signal generator and results combined. Just an idea, keep up the good work.

What’s new

Applied upgrade to billing library as required.