The issue was resolved when, on 3 June 2010, the BBC introduced variable bitrate encoding and fixed previous problems with mixing, fading and noise in pictures. The variable bitrate encoding allowed the channel to maintain the same average bandwidth while allowing an increase in bitrate for more demanding programme scenes such as fast movement. Equally the fixes for mixing and fading treated specific problems with changing scenes, while a configuration change for 'noisy' video means the BBC no longer needed to use noise reduction techniques that often reduced the overall picture quality. The changes were welcomed by campaigners.