Twitch implements copyright scanning tech to auto-mute saved streams, will no longer store videos forever


By on August 7, 2014 at 12:20 pm

Video streaming juggernaut Twitch has partnered with Audible Magic to implement its technology for automatically dropping the copyright hammer on archived videos considered to be “flagged content.”

In a blog post yesterday, Twitch announced that it would be scanning its archives and automatically muting sections of video-on-demand videos (VODs) containing “unauthorised third-party audio.”

“The Audible Magic technology will scan for third party music in 30 minute blocks — if Audible Magic does not detect its clients’ music, that portion of the VOD will not be muted. If third party audio is detected anywhere in the 30-minute scanned block, the entire 30 minutes will be muted.” To our knowledge this will all happen automatically, meaning that channel owners would only be notified once their VODs have already been muted.

When viewers are watching flagged VODs, they will receive a notification above the progress bar alerting them that audio has been muted due to a copyright violation.

Twitch takes great pains to confirm that this new policy will only affect VODs, and will have no impact on live streams. “Audio Recognition will only be run against audio in VODs. We are not scanning live broadcasts and there is no automated takedown of live content.”

On top of this, Twitch also announced yesterday that it would no longer offer the option to store VODs in perpetuity. Citing storage costs relating to “petabytes of video that no one has ever viewed,” Twitch will be removing the “save forever” option, and upgrading its video manager.

This change will allow Twitch to save money on storage, and increase overall video quality. Users that wish to keep their videos for longer than the new storage periods outlined in the blog post will need to export them to YouTube, making the storage cost Google’s problem.

Source: Twitch Blog, and Twitch Blog

15 comments (Leave your own)

No doubt the majority of saved streams will be effected by this… a large number of top streamers use music services during their streams, many of them even build playlists with their audiences.
I’ll never understand how the music industry doesn’t see this as free viral marketing… particularly when the streamers in question don’t make money off it (at least directly).


Fuck sake.

to quote Princess Leia:

“The more you tighten your grip Tarkin, the more systems that will slip through your fingers.”

Yeah.. so that was pretty nerdy.


The part that mentions it includes “in-game audio” is pretty scary.
What will a game-streaming site content creators have to mute in-game audio and have no music streams going?



twitch muted the audio of the official twitch twitch archive :)


It’s because games with in-game radio music (GTA, Need For Speed) would have licensed the music for use in game but not for free distribution over the internet by players.


What about common use laws


Global common use laws?


Not sure, I guess they would know if they’re stripping streams to prevent lawsuits.


no real comment only



Brilliant. Inb4 some rival streaming service pops up on the scene and somehow, mysteriously, for reasons no one can grasp, content streamers jump ship.

It’s already happening.


It’s not even a big deal, most people watch live streams, not VODs.



That’s a little naive. It means people can get the music free. Or denies the content owner money.


twitch muted the audio of the official twitch twitch archive :)

This is fucking fantastic. Thank you for sharing.


Perhaps, perhaps not. No one is going to twitch to find and listen to music. Furthermore these kinds of policies only serve to diminish the quality of service. How can twitch justify muting a 5 hour video because it detected a few seconds of 3rd party audio in the background. Particually when the streamers themselves might not have control of said background noise.

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