This approach was obviously preferred over adding a “relay” computer between the Eyelink Host PC and the Maestro PC, and testing with the EyeLink in “Mouse Simulation Mode” uncovered no performance issues with the design. Eye position data is received over the EyeLink Ethernet connection and, in turn, streamed to Maestro’s RTX-based driver ( cxdriver) over the existing IPC (interprocess communications) structure. Instead, taking advantage of the fact that Windows has sole ownership of 2 CPU cores in the lab’s current quad-core Maestro workstations, the service routine is implemented as a Win32 thread running in the Maestro GUI process. However, the EyeLink SDK is not compatible with RTX. Given that a new sample is arriving over the link every millisecond, it would seem best to implement an EyeLink service routine in Maestro's RTX driver. Of course, to take advantage of this Ethernet link, Maestro must be able to communicate with the EyeLink's Host PC over the TCP/IP connection and "keep up" with the 1KHz data stream when eye position is being recorded. The position trajectories generated by the tracker thus remain in digitized form - not subject to the system noise to which the analog signals are susceptible (the manufacturer actually includes an analog output option with the EyeLink, but discourages its use because of noise). The EyeLink 1000+ eye tracker offers another option: eye position data can be streamed at 1KHz over a fast Ethernet connection. Unfortunately, the analog signals from the lab's old eye tracker were rather noisy. These tracker systems typically have analog outputs representing eye position and/or velocity, and in the past we have connected such outputs to Maestro's HGPOS, VEPOS, HEVEL and VEVEL inputs to record eye trajectories of a human subject. Since any UPnP AV compatible devices will be recognized by EyeConnect, field reports from users with other devices are especially welcome.In eye movements studies in humans, a high-speed camera-based tracker system is typically used to monitor the subject's eye position during an experiment. Digital media files remain organized as originally stored in your Mac libraries so you can quickly find the file you want.ĮyeConnect has been tested intensively with the following UPnP AV devices: The D-Link DSM-320 MediaLounge, the Philips Streamium SL400i, and the Philips Streamium MX6000i. Use EyeConnect in combination with your UPnP AV digital media device to manage wired or wireless streaming of digital entertainment content effortlessly. Elgato's EyeConnect digital media streaming software addresses a rapidly growing market for home networking solutions for the Mac. Using this industry standard technology, EyeConnect enables a broad range of UPnP AV devices to play EyeTV recordings, digital music, video, or photo content, including iPhotos, iTunes, and movies stored on your Mac. EyeConnect software enables your UPnP AV digital media device to stream EyeTV recordings, digital photos, music and movies from your Mac onto your TV or stereo.ĮyeConnect is based on the globally trusted Universal Plug and Play Audio/Video standard (UPnP AV) for the seamless sharing of digital content throughout your home.
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