We reported last week on game-streaming service Twitch’s introduction of audio copyright filtering, muting the sound in videos uploaded by users that contained unlicensed music (Bulletin, 7-Aug-14). It’s fair to say there’s been quite a backlash from users, with many pointing out the difficulties in avoiding including such tracks in their videos. Now Twitch has tweaked its policy in response to that feedback. “We’re deploying an “appeal” button for VODs that have been flagged for copyrighted music by the new Audio Recognition system,” the company announced last week. “We recognize that the system is not yet perfect. We want to make this system as fair and unobtrusive as possible, and we greatly appreciate your help.” CEO Emmett Shear explicitly apologised for the abrupt introduction of the new filters, in an Ask Me Anything (AMA) interview on Reddit. “Lack of communication ahead of time: This was our bad,” he wrote. “I’m not so glad we failed on communicating the audio-recognition change in advance, and wish we’d posted about it before it went into effect. That way we could have gotten community feedback first as we’re doing now after the fact.” He added that audio recognition “currently impacts approximately 2% of video views on Twitch”.