Time lapse needs calm conditions so the boat always has the same attitude for each shot. I will try again with the image stabilizer turned on, it was off for my first trials.
Ambient sound recording is not possible (and does not make any sense) for time lapse. For real time recording the built in mike can be used, or an external stereo mike can be used with an optional adapter. Garmin also has a headset adapter for pilots to use.
Unfortunately the track is restricted to the simple line drawing in exported video. When using the VIRB Edit program you get a google map type display. I have read that there is a rights issue for exporting the map image. Telemetry overlays can be configured before export. The VIRB also has 3 axis G-force sensor and can record telemetry from some external sensors, but these are aimed at fitness activities- heart rate (although that might be interesting in extreme sea conditions!), pedaling cadence, etc. Garmin should allow it to link to the ANT NMEA adapter they use for the Quatix watch, the VIRB also uses ANT technology for sensors. With this they could log some NMEA data with the video.
I also have a GoPro Hero3+ Silver that was awarded to me by my employer but have not used it very much. The VIRB is MUCH easier to use, it has real menus that you can read! It can be easily set up without looking at the manual. The GoPro feels like a toy next to the VIRB. Battery life is supposed to be longer on the VIRB (at least compared to a GoPro without the extra battery attached). The VIRB also has a LCD screen that is a viewfinder and allows menus.
Howard
