Twitch to Remove Audio Containing Unauthorised Third Party Material

Twitch will implement Audio Recognition technology on all VODs in an effort to combat the use of "unauthorised third party material". The scans will apply to past streams only: live streams will remain unaffected.

Twitch has partnered with Audible Magic to remove all unauthorized material from stored content it hosts, and the approach they're taking is ruthless to say the least. Audible Magic scans videos in 30 minute blocks, and if a fraction of that block is found to contain third party material, the whole 30 minute block will be muted. This can include ambient background music as well as in-game music, depending whether those tracks are stored in the Audible Magic database. This will be a huge hit to Twitch, considering it is entirely based on people streaming their games.

Please note that Audio Recognition is not guaranteed to be 100% accurate. It may return false positives or miss content from copyright owners who do not work with Audible Magic.
— Elizabeth Baker, Twitch General Counsel

The news has angered Twitch users, especially in light of rumours that YouTube/Google is attempting to buy Twitch, which makes sense considering they use the same audio muting technology. When YouTube implemented this in late 2013, it resulted in widespread take down notices among gaming channels and even the redirection of profits to copyright holders. 

Twitch has also announced that big changes are coming to its video on demand service, including better service for international viewers, easier YouTube exports and increased length of default rolling storage for past broadcasts. The negative side to all these "improvements" is that the "save forever" option is being eliminated.

Going forward, we’re increasing default rolling storage for past broadcasts from 3 days to a maximum of 14 days, for everyone who has opted in (i.e., enabled Archive Broadcasts). For Turbo subscribers and members of the Twitch Partner Program, that storage is increased to a maximum of 60 days.

Given the viewership patterns on past broadcasts, we believe the tradeoff is better for everyone. To be clear: this is not a move to economize on space. Due to the triple redundancy, it will actually require us to substantially increase our total amount of storage.
— Emmett Shear, Twitch CEO

Existing past broadcasts will be left alone for three weeks, after which Twitch will begin deleting them from its servers. To make life easier for people who want to keep them around, it's released a new video manager that will simplify the process of creating highlights and exporting broadcasts to YouTube. They have temporarily disabled the YouTube exporter, but it will be back up, soon.