All of these events are free and open to the public. Please plan to attend--and bring your friends.

Monday, April 28

"The Science of Audio in 2003"
Gilhousen Telecommunications Colloquium
Roberts Hall Room 101 (6th and Garfield)
Presentation by James Johnston, Microsoft Corporation (formerly of AT&T Bell Labs)

Audio science and engineering is changing rapidly with the onset of inexpensive multichannel and internet delivery mechanisms. For many years, the technical challenge was in getting the signal, in one or two channel form, to the listener. With the advent of sampled, quantized recording, broadband internet, perceptual audio coding, modern amplifiers, pre-amplifiers, and such, the delivery mechanism has been mostly solved. In this environment, the attention is justifiably moving from recording methods and circuit design to questions of human perception. In this talk, Mr. Johnston will present some results and speculation on the future of audio in the multichannel broadband internet age.

Mr. Johnston retired in 2002 but worked 26 years for AT&T Bell Labs and its successor AT&T Labs Research. He was one of the first investigators in the field of perceptual audio coding, one of the inventors and standardizers of MPEG 1/2 Audio Layer 3 and MPEG-2 AAC, as well as the AT&T Bell Labs or AT&T Labs-Research PXFM (perceptual transform coding) and PAC (perceptual audio coding) and the ASPEC algorithm that provided the best audio quality in the MPEG-1 audio tests.

Mr. Johnston is an IEEE Fellow, an AES Fellow, a NJ Inventor of the Year, an AT&T Technical Medalist and Standards Awardee, and a co-recipient of the IEEE Donald Fink Paper Award. For 2003, Mr. Johnston is an IEEE Signal Processing Society Distinguished Lecturer. He is currently employed with the Audio Coding Group at Microsoft Corporation, Redmond, WA, USA.

Tuesday, April 29

"Surround Sound and DVD Authoring"
Media and Theater Arts Seminar
Media and Theater Arts Building Room 244: Studio A (11th and Grant)
Presentation/Demonstration/Live Recording by Mike Sokol, surround professional

On the menu this year is the creation of a DVD that features a live surround sound recoding of a new composition by David Jadunath. The demonstration will start with a discussion of microphone choice and placement, then heat up with a live performance and recording of David's non-traditional jazz combo with audience participation encouraged. Then a quick tour of, mixing tools and the process of encoding surround audio to a DTS track. After the recording session, the topic will change to DVD authoring.

The presenter Mike Sokol is a recognized expert in the field of surround audio and following the presentation he will be available to answer questions on recording processes, surround technology and tools, and strategies for making great DVD's

This seminar is free and open to the public.

Contact: Dave Koester, Media and Theater Arts, 994-6977

Wednesday, April 30

"Audio Interest Group Organizational Meeting"
Media and Theater Arts Building Room 233: Studio B (11th and Grant)

Are you an enthusiast about audio systems, music recording, sound design, home theater, or multimedia audio production?

Would you like to meet occasionally with other people from the community who share your interest in audio?

If so, we invite you to attend an informal organizational meeting for the Bozeman Audio Interest Group. If there is sufficient interest we will investigate forming a local section of the Audio Engineering Society.

No charge: open to the public. Please join us and bring your friends.

A web link as well as a printable flyer are available.