Updated: Wed, 10/02/2024 - 13:45

From Saturday, Oct. 5 through Monday, Oct. 7, the Downtown and Macdonald Campuses will be open only to McGill students, employees and essential visitors. Many classes will be held online. Remote work required where possible. See Campus Public Safety website for details.


Du samedi 5 octobre au lundi 7 octobre, le campus du centre-ville et le campus Macdonald ne seront accessibles qu’aux étudiants et aux membres du personnel de l’Université McGill, ainsi qu’aux visiteurs essentiels. De nombreux cours auront lieu en ligne. Le personnel devra travailler à distance, si possible. Voir le site Web de la Direction de la protection et de la prévention pour plus de détails.

Motion capture

 

  

A hand playing piano through motion capture
Performance captured by Vicon 6-camera passive motion capture system.

 
View of the motion capture room
 
 
 
 
 
 
Sample motion capture video: Piano performance. [.avi]
See Tactile feedback and timing accuracy in piano performance  [.pdf]
 
Music and speech require final temporal precision for the accurate communication of information. We track the development of temporal control in motor movements during performance. Motion capture systems are used to track anticipatory (planning) aspects of motor movements in music performance. These fine-grained measurements from tiny (3mm) unfettered markers on finger, hand, wrist and arm joints, combined with acoustic (sound) analyses and MIDI (musical instrument digital interface) music measurements, allow us to test the temporal relationship between anticipatory movements and memory retrieval mechanisms under natural performance conditions.
 

An active Certus motion capture system (below) allows us to capture fine-angle movements with markers attached to musicians' limbs and to their instrument. Two trackers capture the motion data, which is synchronized with sound recorded via a data acquisition unit. This system is used to measure the role of tactile and auditory feedback in sensorimotor integration.

 Two pianists wearing motion capture headsets and handsets  Motion captured hand playing piano

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