Keisuke Kinoshita announced about 'Revtrina'.
Takaaki ANAZAWA (Bitmedia) and Keisuke KINOSHITA (NTT Communication science laboratory) gave a lecture on overview of surround audio reproduction by using Reverberation Reduction and Control Technology.
Mr.Kinoshita gave us overview and a principle about how to separate direct sound and reverberation sound based on multi-step linear prediction algorithm, which the theory was published in November 2009 under the name 'Revtrina.'
Mr.Anazawa explained about philosophy of three-imensional audio based on separation and control of reverberation. He gave a demonsration of reproduction surround sound from original stereo and monoaural audio source. Participants experienced efficient and effective results made by the technology. Also, he refered to consider possibility for many kinds of application such as improvement for clarification of audio, room acoustic compensation, etc.
Many non-member participants were there at the meeting, and all of them seemed to be satisfied and had a great time.
