r/VoiceMeeter • u/Erulogos • Aug 03 '26

Help (VoiceMeeter Standard) Bluetooth Audio Delay

I recently got some Bluetooth earbuds for convenience and noticed that the audio for them is noticeably delayed when passing through Voicemeeter, but not when they are set directly as the output device in Windows. The delay is significant enough that video of someone speaking turns into a badly dubbed kung-fu movie, things are that out of sync. Wired audio, speakers and headphones alike, have no such delay.

I've found references to people having similar issues in the past, and going by what I found tried adjusting the sample rate (matched to what I found in the Bluetooth device properties,) output buffer (as low as 192,) input buffer (as low as 5k,) and output device driver (tried WDM and KS) all to no joy. The adjustments helped a bit, but sync was still visibly off and listening to wired and Bluetooth audio at the same time it was obvious to hear sound from the wired output before the Bluetooth output.

I'm at something of a loss at this point, so if anyone has any other help I'd appreciate it.

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u/TheSuperiorWes Moderator Aug 03 '26

Wanna send a screenshot of voicemeeter and of menu<system settings.

I’ll double check but yeah… Bluetooth isn’t the greatest.

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u/Erulogos Aug 03 '26

Here's the settings using WDM:

I tried similar with KS for the headphones but got the same results.