CONCERT DISTRIBUTION ON INTERNET

Experiment of a live concert distribution on Internet by Ircam and the Computer Research Center of Cnam (Cedric).

 Dates : Saturday, 18th and Sunday 19th October 2003, sessions from 03:00pm and 07:00pm
 Venue : Ircam, salle Olivier Messiaen
 Access conditions : free entrance but pre-registration is necessary. Please contact François Déchelle or Patrice Tisserand

Physically, the musicians will be on different locations although they have to play "virtually together" in real time. Each one of them will send his audio flux that the other will hear. To be able to play together, the other musicians will receive the feedback thanks to a device that synchronizes the audio flux and that was developed as an object of the jMax library software.

This synchronization requires a steady latency regarding the restoration of the sound. The musicians will play faster than the music they hear ; however, they will be able to play together in a synchronized way. A virtual metronome will allow the musicians to get used to the network latency.

Thanks to distant supervision of the musicians' outputs, an engineer will be able to control their audio flux (volume, local latency...) so that the public can be part of this virtual concert.

Technical team

 Cnam-Cedric

Nicolas Bouillot : synchronization and metronome
Hans-Nikolas Locher : supervision (sound engineer)
Rémy Bonafous : installation of network devices
Eric Gressier-Soudan : team coordination
Samundeswary Ramachandra : network manager (nTop)
Mohamad Al Jammal : dimensioning

 Ircam

François Déchelle : jMax real time environment
Patrice Tisserand : jMax real time environment

Musicians

Jazz Quartet KumQuat :
Rafael Quenehen, saxophone
Clément Lebrun, bass
Sylvain Choinier, guitar
Julien Bloit, drums

Jean Lochard, real time electronics

With the participation of Franck Perrolle (guitar), Edwige Allouche (singing).