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Yes, this sounds great. I don't tend to log explicit waypoints so this is going to be much more useful for me. Did you think about having a little arrow or some sort of marker that followed the trace as you played the audio or is there some specific reason that this would not be possible?<div><br class="webkit-block-placeholder"></div><div>John<br><div><br><div><div>On 20 Feb 2008, at 19:17, 80n wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">David<br>This sounds like it will be super cool (sorry about the pun). I'll be trying this out on my next expedition.<br><br>Etienne<br><br><div class="gmail_quote">On Wed, Feb 20, 2008 at 6:16 PM, David Earl <<a href="mailto:david@frankieandshadow.com">david@frankieandshadow.com</a>> wrote:<br> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">To augment continuous audio synchronized with waypoints that I mailed<br> about earlier this week, I have now also added the facility to work with<br> continuous audio recordings on tracks where you don't have or don't want<br> to use explicit GPS waypoints. This will be in tomorrow's JOSM build.<br> <br> After loading your GPX track, right click on the GPX layer and choose<br> the new "Make Sampled Audio Layer" option. This will ask for your WAV<br> file; then it will create a new layer combining the audio track with the<br> GPX trackpoints to produce a set of audio markers laid out along the<br> track. These will be at least 15 seconds and 75 metres apart, or<br> whatever values you choose for these in Advanced Preferences settings<br> for "marker.audiosampleminsecs" and "marker.audiosampleminmetres"<br> respectively)(*).<br> <br> You're then in a similar position to applying audio to explicit<br> waypoints as per my previous changes: you can synchronise to a marker<br> near the beginning of the track, play by reference to the visual<br> position on the map, jump forward and back in the commentary, pause and<br> resume and so on.<br> <br> The sampled markers are named according to the time offset from the<br> beginning of the sound track (e.g. "1:37", "1:09:07"). To facilitate<br> this, I've reversed the default for whether to show text for button<br> markers (audio, image and web), but you can turn these off as before,<br> transiently from the right button layer menu, or permanently by setting<br> marker.buttonlabels to false in Advanced Preferences.<br> <br> David<br> <br> <br> (*) the defaults are chosen so that they are about the same for a<br> cyclist travelling at 5 metres per second (about 11mph or 18km/h), so<br> you get a useful but not overwhelming number of samples, but if you stop<br> or slow down, you don't suddenly get a concentration of points close<br> together. Of course if you stop and then record intermittently, you'll<br> still find it hard to locate the bit of commentary you want - the whole<br> idea is it is related to landmark junctions or loops you make in the<br> road or whatever. If you're in a car you might want to set the sample<br> time a bit shorter, say 7.5 in an urban environment, though the distance<br> would probably be the same unless you actually want a higher or lower<br> density, and maybe 60 to 90 seconds apart if walking at a typical 1 m/s.<br> <br> _______________________________________________<br> talk mailing list<br> <a href="mailto:talk@openstreetmap.org">talk@openstreetmap.org</a><br> <a href="http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk" target="_blank">http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk</a><br> </blockquote></div><br><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">talk mailing list</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="mailto:talk@openstreetmap.org">talk@openstreetmap.org</a></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk">http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk</a></div> </blockquote></div><br></div></div></body></html>