Besides the always-on clock and tap-to-unlock wake up capabilities that the Amber update will bring to the Nokia Lumia 920, the update will also allow the handset to record audio in stereo; a YouTube subscriber uploaded a coupler of videos showing off this feature. To hear the difference between the mono and stereo sound, you might want to use a headset...Source: http://www.phonearena.com/news/Amber-update-brings-stereo-recording-to-Nokia-Lumia-920_id46262
