User:Thenthorn/Telematic performance

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The term telematic performance refers to a live performance (art, dance, music, etc.) which makes use of telecommunications and information technology to distribute the performers between two or more locations.

While this may involve use of conventional videoconferencing technology, it has more recently come to mean the use of internet technologies. Performance groups my also refer to their events as internet concerts, online jamming, or teleconcerts.

Contents

[edit] History

[edit] Issues

Performers and researchers work to overcome the following obstacles

  1. Audio Latency: Most musicians who play in a group rely on audio cues to maintain tempo and other communication. The most obvious example is the use of a drummer in pop music to keep time. In a normal rehearsal or performance environment, there is a delay between the time one musician plays and another hears the sound due to the speed of sound in air. This is typically from 3 - 50ms. When audio is transmitted through a digital medium (i.e. the Internet), the delay (or latency) can be much longer. Cel phones have latency of approximately 50ms. Applications such as Skype have approximately 100ms. And, Quicktime and Windows Media streaming run 8 or more seconds. When the latency is too high, the audio cues are no longer effective. Researchers have shown that some musicians can ignore this delay while others find it obtrusive. In general, the higher the audio quality and the more channels transmitted, the higher the latency needs to be to reliably transmit the audio stream.
  1. Echo Cancellation:
  1. Video Latency: Musicians also rely on visual cues to maintain syncronization. The most obvious example is the use of a conductor with orchestral music. Due to the size of video data,latency tends to higher for video than audio latency.
  1. Audio/Video synchronization:
  1. Monitoring:

[edit] Technolgy

[edit] Open source

[edit] Commercial software

[edit] Dedicated hardware

  • Axia
  • Avocent

[edit] Performance Groups

  • SoundWIRE at Stanford
  • VistaMuse at UCSD
  • Tintinnabulate at RPI
  • TeleCello Concerto
  • Water Naught
  • Three Ways

[edit] See Also

[edit] External Links