Applications

In daily life there exists a strong connection between sound and motion. Qualisys motion capture systems offer great advantages in the relation between sound and motion, for example:

  • Sound and music computing – sonic interaction design, virtual reality, sonification of movements, computer music, new interfaces for musical expression.
  • Music psychology research – action planning and memory retrieval, multi-modal perception, joint action and ensemble performance
  • Music performance and pedagogy – analysis of musical instrument performance, interactive music tuition systems
  • Neuroscience – auditory and sensory motor control, music and the brain, music therapy and sensory-motor rehabilitation
  • Speech communication – speech production and non-verbal communication

Data format

QTM has native support for streaming data over Open Sound Control. The stream of identified 3D data, 6DOF data and/or analog data can be packaged in OSC messages for transport over UDP/IP to an OSC aware software such as Max/MSP/Jitter.

The low-latency streaming of movement data via OSC facilitates the creation of sophisticated interactive applications. QTM also has several ways of feeding data to external applications for processing, such as Matlab.

Synchronization

Qualisys cameras have the ability to receive a hardware synchronization signal of any frequency (up to 50 kHz) and have its internal clock locked-on to the external source. The external clock source frequency can be either higher or lower than the desired motion capture frequency. Qualisys features support for time stamping of motion capture data using SMPTE time code, allowing for frame-synchronized recording of audio.

In addition to the ability to synchronize to an external source, the system is capable of synchronizing any external equipment at a frequency independent of the motion capture frequency.

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