Expanding the Walls of the Concert Hall

On a Tuesday evening in March, six student ensembles from Oberlin Conservatory performed in a concert that was webcast on the Oberlin campus and to the AT&T Labs in Florham Park, New Jersey. It is all part of the Conservatory's groundbreaking collaboration with the Labs, which explores sound quality and high speed transmission across the Internet.

"This test concert was probably the first transmission across the Internet of a scheduled concert using high-quality, 5-channel sound field reproduction," says Steve Crandall, principle member of AT&T Lab's Human-Computer Interface Research Department. "The test was a combination of a lot of efforts. Jim Johnston was in charge of the sound field reconstruction using AT&T Lab's music compression techniques and new multicast Internet techniques.

"The hope is to give people better experience in stereo and surround sound and to make live concerts available around the planet. You want to free the music of its time and space constraints so an audience can be extended outside the concert hall."

"The important aspect of these multicast technologies is that if 10,000 people are listening to a concert via the Internet, the concert only needs one connection rather than 10,000 separate connections. That one stream of music goes out and is routed to 10,000 users to minimize use of Internet and minimize the load on that concert server. And it allows concert halls with fairly small Internet connections to expand their walls to the world."

The Surround Sound Recording Array

Michael Schulze, director of audio services at the Conservatory, was charged with setting up the surround sound recording array. "The technology we used for this event--surround sound recording array--is very easy to set up," he says. "The array is comprised of seven high quality microphones arranged to capture sound from both the horizontal and vertical planes. The audio is played back through a five-channel speaker system, which reconstructs as closely as possible the original three-dimensional soundfield. This provides the listener with a very realistic illusion of height and depth."

Schulze says, "The ability to capture and transmit this soundfield over a computer network is very exciting, as listeners all over the world can experience a live musical event in three-dimensional sound. We expect this technology to revolutionize what we think of as music broadcasting."

Crandall elaborates, "We're interested in two-way performances, joint critiquing, workshops, global jams and all novel, creative ideas to be determined by students and professors, staff. We're not trying to foist technology; we're trying to learn with Oberlin. I want to emphasize the collaborative nature of this project."

Crandall continues, "It is all exploratory. There are people here who are passionate in moving beyond stereo and MP3 and harnessing the Internet for making music a viable service on the Internet for everyone from rights owners, to performers, to the audience.

Shulze says, "We are very fortunate here at Oberlin Conservatory to be involved with AT&T in the development and testing of this technology. As this becomes more mainstream we will be uniquely positioned to reach a worldwide audience looking for entertainment and education on the Internet."

Reviews from the Labs

Crandall says the concert audience at the Labs--set up in a five-channel concert room-- ranged from an average of 15 people to a high point of 30. "It was well after hours, but people stayed late to hear the concert. People felt frustration that they couldn't communicate appreciation and applause back to the musicians. There's something magical, of course, about a live performance where you can see the musicians. But there's still a connection that happens in a live performance that is conveyed even if you can't see it."

Labs research scientist Jim Johnston and Labs recording technician Mathias Kretchner worked to ensure the success of the multi-cast. "We're learning a lot about error correction and recovery," Crandall explains. The Internet isn't the best place in the world to stream music over. We were dealing with packet error rates as high as 20 % during the concert, meaning that there was congestion on the Internet. Even though this was still much under development, people were able to enjoy the musicality of the concert. People were shussing one another and that's something we never do here."

"Expanding the Walls of the Concert Hall"
AT&T Labs/Oberlin Conservatory
Network Internet Multi-Cast
Tuesday, March 14, 6-7:30 p.m.
Warner Concert Hall

Artists/Program

6 p.m. The Enesco Quartet
Mozart, K465 Beethoven, Op. 59, No. 3
Emily Fowler, violin
Christopher Gross, cello
Adam Meyer, violin
Elizabeth Weisser, violin

6:15 p.m. The Offbeats
"Where is Love?" (Lionel Bart, arr., Gene Puerling), "Strawberry Fields" (Lennon/McCartney)
Jordan Balagot, Seth Fruiterman, Amy McIntire, Jessica Rossi, Jacqueline Davis, and John Franco

6:30 p.m. The Elan Trio
Haydn--Trio in D Major, hob.XV:16
Claire Chase, flute
Kivie Cahn-Lipman, cello
Phyllis Chen, piano

6:45 p.m. Oberlin Percussion Group (OPG)
"She is Asleep" (John Cage)
Hudie Broughton, Scott Forth, Adam Sliwinski, and John Tarcza

7 p.m. David Kazimir, organ
J.S. Bach--Fantasy (piece d'orgue) BWV 572

7:15 p.m. Jazz combo
"Night and Day" (Cole Porter)
Michael Reavey, trumpet
Kelly Roberge, tenor
Adam Faulk, piano
Zack Hickman, bass

Related: Upcoming Webcasts: Lecture and Performances

FRIDAY JUNE 23, 8 P.M., KULAS RECITAL HALL
BPI Faculty Perform Chamber Works by J.S. Bach
Tickets: $10.00; Call 440/ 775-8044
Michael Marissen, Institute Musicologist-in-residence will introduce the concert at 7 p.m.

Program:
Concerto in C Major for two harpsichords, BWV 1061
Sonata in G Major for 2 flutes and continuo, BWV 1039
Cantata "Ich geh' und suche mit Verlangen," BWV 49
Sonata in G minor for viola da gamba and harpsichord, BWV 1029
Concerto in C minor for oboe, violin, strings, and continuo, BWV 1060

Soloists:
Harpsichordists Lisa Goode Crawford, Webb Wiggins, Penelope Crawford,
Flutists Janet See and Michael Lynn
Viola da gambists Catharina Meints and James Caldwell
Oboist Marc Schachman
Violinist Marilyn McDonald
Soprano Penelope Jensen and baritone Max van Egmond

FRIDAY, JUNE 30, 8 P.M., WARNER CONCERT HALL
The BPI Chorus and Orchestra, under the direction of the Institute's
Artistic Director, Kenneth Slowik
Tickets: $10.00; Call 440/ 775-8044

Program:
Bach's Towering B minor Mass, BWV 232.
Vocal Soloists: Soprano Penelope Jensen, baritone Max van Egmond and tenor Jeffrey Thomas

THREE LECTURES BY MICHAEL MARISSEN
Baroque Performance Institute Musicologist-in-Residence
1:30 p.m., Kulas Recital Hall

Monday, June 19: "Bach's Great Catholic Mass"
Wednesday, June 21: "Bach and the Nicene Creed"
Friday, June 23: "The World Views of Bach's Vocal and Instrumental Music"