YouTube Audio/Video Sync

Fix wireless audio streaming delay for YouTube

Fix Wireless Audio Delay on YouTube

YouTube Audio/Video Sync is a Firefox add-on designed to fix the delay issue that occurs when streaming YouTube videos wirelessly. It allows users to adjust the latency to synchronize the audio with the video, ensuring an optimal viewing experience.
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Add-on stats

Users: 365
25
Rating: 2.50
(34)
Version: 0.1.4 (Last updated: 2023-07-16)
Creation date: 2020-05-06
Weekly download count: 37
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood:
Moderate risk likelihood
Manifest version: 2
Permissions:
  • webRequest
  • *://*.googlevideo.com/*
  • *://*.youtube.com/*
  • storage
  • tabs
Size: 260.32K
URLs: Website

Ranking

# 5,246 ▼ 11
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Other platforms

YouTube Audio/Video Sync (v0.3.8)
4.01 (134) 16,055
Not available on Android
Not available on Edge
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Add-on summary

Analyze keywords

There is always a delay when streaming audio from your device to a receiver (Apple TV, AirPlay speakers, Sonos, Network Player, TuneBlade, Bluetooth, etc.). This is not a big issue when streaming music but any video will become out of sync. This addon attempts to solve this issue for YouTube.

One time set up:

  • Play a YouTube video
  • Go to the addon's Options
  • Adjust the latency slider until the audio becomes in sync with the video
  • You can disable the sync adjustment by clicking on the addon icon.

YouTube Audio/Video Sync works by muting the original video and reloading the audio adjusted to the selected delay.

Note: -YouTube Live Videos are not supported. -This extension (at least for now) will only work on youtube.com, embedded YouTube players on other websites will not work.

This is an open source project, licensed under GPLv3 https://github.com/adrian-ilie/av-sync

User reviews

Doesn't work anymore (audio delay is not being changed); development has been abandoned.
by Firefox user 10821216, 2024-07-11
This addon is very schizophrenic, sometimes it works, most of the time it doesn't. If it could be fixed, this addon would be a godsend.
by birgit, 2024-04-05
It works . . . after a fashion. Skipping ahead or back using the cursor keys mutes audio and also severely disrupts the audio sync, so I only was able to use it for a few minutes before uninstalling, as I tend to jog back and forth a lot.
by asavage, 2024-01-29
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Add-on safety

Risk impact

YouTube Audio/Video Sync requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk likelihood

YouTube Audio/Video Sync is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

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