Fix Windows Bluetooth Audio Lag (SoundKeeper)

AnkiWeb addon 1345112629

Keeps Bluetooth headphones awake by playing an inaudible zero-audio stream via SoundKeeper, preventing cut-off card audio on Windows, running only while Anki is active.
AI-generated summary; may contain mistakes.

bugfix-workaround

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Votes
4 (πŸ‘ 4 Β· πŸ‘Ž 0)
Updated
2026-05-12
Anki versions
25.09.4~
License
MIT (from the license file in the package)
Virus scan
No ClamAV match A match does not prove malware. No match does not prove that the code is safe.
Languages
Python
Description language
en

Maintenance

active

  • Last update or commit: 2026-05-12 (173 days before the snapshot).

GitHub

No GitHub repository linked.

Will it work on my Anki?

Version branches
Min AnkiMax AnkiUpdated
25.09.4+2026-05-12
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Description

On Windows, some bluetooth headphones go to sleep when no audio is playing, causing the start of the audio on your cards to be cut off. This add-on fixes that by using SoundKeeper to play a stream of zeroes that keeps your headphones enabled without affecting the audio.

Note: I have renamed the binary to SoundKeeperZero.exe because this is the most minimal way to achieve the desired effect, but the documentation does note that this may not work on all hardware. You can rename the .exe and update __init__.py if this default doesn't work for you, but it works fine for me with my Sony WH1000-XM4 and Windows 11.

You can also just download SoundKeeper.exe and run it directly without this add-on. I created this add-on so that it only runs when Anki is running, instead of keeping my headphones permanently engaged.