Tag Archives: WIN
ERA field trip at Plymouth ‘GEES Learning and Teaching’ conference
On July 7th, the ERA team and our Plymouth University GEES collaborators John Maskell, Paul Lunt, Jason Truscott, Matt Sharples and Alison Stokes demonstrated the use of remote learning with ERA technology at the Devon Great Consols site. A minibus … Continue reading
Plymouth University trials ERA
At the end of June, we conducted some experiments to evaluate the performance of ERA-assisted fieldwork compared to the same fieldwork task being performed by students visiting the site directly. Four groups of students volunteers visited Devon Great Consols to … Continue reading
ERA visits Plymouth to demonstrate at GEES
On Monday 29th March (2010) we (John and Trevor) visited the Higher Education Academy’s Geography, Earth and Environmental Sciences Subject Centre based at the University of Plymouth. We met with John Maskall and Jason Truscott, and showed them the portable … Continue reading
Success on the BGAN from Masaya Volcano…
Yesterday we successfully connected to Paul at the volcano using the BGAN satellite link. The following set of (five) posts will try to cover the tests we carried out, these include: Getting audio contact Video and audio synchronisation A walkabout … Continue reading
Getting audio contact
The attached video shows the point at which we got our first audio contact at the Volcano. At this point the video was running at a quarter PAL resoluction (160 x 120 pixels) at five frames per second and a … Continue reading
Video and audio synchronisation
To test how the audio and video streams are performing we do a simple five-finger test. This involves counting down from five to one using your fingers. The idea behind it is simple – the audio and video streams are … Continue reading
A walkabout on video
Here’s a clip showing the video stream stretched to it’s limits when Paul goes walkabout with the camera. We’re using MPEG-4 video and in this clip the resolution of Paul#s camera was set to half PAL (320 x 240 pixels) … Continue reading
Video resolution configurations
We’ve used quite a few different video resolutions and a couple of frame rates. In all cases we’ve kept a constant bit rate of 200Kbps – Richard at callmonitor.com recommended this setting and it has served us well. Higher bit … Continue reading
Photo downloads with and without audio
The final test we did with Paul at the volcano yesterday was to download a photo while talking on the VoIP phone at the same time. The router currently gives no priority (or Quality of Service preferences) to audio data … Continue reading
Photos from the Volcano over the BGAN
Today Paul used the BGAN terminal on the side of the volcano to send back live photos.