Nettmusikk

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===== CoIP : Labtests 2012-04-27 =====

  * Setup
    * Lab (Caruso)
      * Back projection screen 
      * Projector design's projector
      * 2 mic
      * Toshiba camera
    * Leif Arne's Office
      * Same as Caruso
      * Single mic
    * Link beetween
      * analog audio two ways
      * DVI-opticat-DVI one way
      * DVI-TP-DVI one way
  * Tests
    * Conduct and clap - Test 1
      * Over link
        * 1 to 1: Good experience
          * Vivianne: Need to speak slower/clearer than when in same room
          * Torleif: On scale for 1-10: 9 ish. Camera infront of screen is disturbing (somewhat)
        * Sound sync test (clap + visual): no noticable delay
        * 1 to 3: ...
      * Same room
        * 1 to 3 - conduct clap
          * Leif arne: Better on link due to reference line at bottom of screen
          * Torleif: Focused more on hands on link, most on face when in same room
          * Leif arne: Small movements easiers in same room
          * Vivianne: More aware of choir's behaviour when in same room  
        * 1 to 3 - clap-clap:
          * Vivianne: linear speedup easier then linear slowdown, more aware
          * Leif arne:  
    * Conduct and clap - Test 2
      * Over link
        * 1 -3 - conduct-clap
          * Vivianne: Feels more distant
        * 1 - 3 - clap-clap
        * 1 - 3 - conduct-clap no sound
        * 1 - 3 - clap-clap no sound
          * Vivianne: Feels closer then with sound
            * Conduct differently when no sound (says other conductors too)
      * same rom
        * 1 - 3 - clap-clap eyes closed
          * choir synced but lagging (Leif arne: no prediction possible)
    * Vivianne: stereo sound and video enables differentiating behavior of choir members

    * Hypoteses: Disscrapancies adds up, i.e. video link + audio link is worse than just video or just audio

    * Conduct and sing (ta-ta of Father Jakob)
      * same room 1 - 3
      * over link
      * Difference is close to non-noticable, group is getting used to both settings
      * Vivianne: More difficult than clapping (due to less percurrsivness)
      * Seem to be a fast learning curve for all
        * Vivianne is used to adapting (professional) ..?
      * same room 1-3 Leif Arne conduction
        * Some imprecission
      * over link 
      * Leif Arne did equally well (non-professional) i.e. same room/over link does not effect performance

    * Choppy/jumpy effects (i.e. due to low frame-rate) are probably difficult to compansate by conductor

    * Need new test-workshop when delay can be introduced (with only Torleif from choir)
      * Video and audio delayed differently is of interest
      * Test different screen-sizes
      * Reduce video quality if possible

    * Conclusion: On link quality seems good enough
      * Faster frame rate could still make a difference

    * watching recorded conductor (woman):
      * Leif Arne saw/was disturbed by low frame rate
      * Vivianne and Torlaif didn't notice
    * watching recorded conductor (man):
      * He was moving his eyes (imagening looking at choir members)
        * Has that significance for choir?