DH2012 has started! Please note some minor changes to the Wednesday programme: The presentation of N. Sharma in Long Paper Session LP 02 (09:00-09:30) was cancelled due to unforeseen circumstances. The session will start at 09:30 with the presentation ‘Citygram One: Visualizing Urban Acoustic Ecology’ as scheduled. The second presentation in LP 04 by C. Welger-Barboza is cancelled as well, the paper of J. Bradley moves up to 11:30. In the evening, we are looking forward to welcoming Steve Crossan, Google Europe, at the reception for his talk.