[OSM-talk] voice recorders

[John McKerrell]

A slight alternative to this is to record a constant audio stream and  
taken photos (of nothing) along the way, then you just need to say  
"I'm taking a photo as we pass a post box on the left" and you know  
that the first photo that shows up is where the post box was.

I actually use my mobile phone to record my audio commentaries, works  
out quite well as I also use it (with a bluetooth GPS) to take my GPS  
traces so I just have 2 bits of kit (well, 3 including my camera). I  
usually use my handsfree kit so that even when I'm on the bike I can  
work this way.

John

On 15 Oct 2007, at 15:04, Steve Chilton wrote:

> Some of my best friends are inanimate objects ……
>
> Steve Chilton, Learning Support Fellow
> Learning and Technical Support Unit Manager
> School of Health and Social Sciences
> Middlesex University
> phone/fax: 020 8411 5355
> email: steve8 at mdx.ac.uk
>
> Chair of the Society of Cartographers: http://www.soc.org.uk/
>
> SoC conference 2007:
> http://www.port.ac.uk/special/soc/
>
> Mind the (Map) Gap:
> http://news.bbc.co.uk/1/hi/magazine/5413010.stm
>
>
> From: talk-bounces at openstreetmap.org [mailto:talk- 
> bounces at openstreetmap.org] On Behalf Of 80n
> Sent: 15 October 2007 14:53
> To: David Earl
> Cc: talk_at_openstreetmap
> Subject: Re: [OSM-talk] voice recorders
>
>
>
> I've been using the built-in voice tagging capability of my camera  
> for this purpose.  It works exceptionally well.
>
> Most digital cameras have a method of recording a voice tag along  
> with a photograph - although its often an obscure and poorly  
> documented feature.
>
> I don't actually take photos of a specific object - just press the  
> shutter button to get a time stamp.  You can then load the photos  
> into JOSM and synchronise them with your tracklogs.  You can then  
> play the associated voice tag to tell you what happened at that point.
>
> It works really well once you get over the fact that some people  
> think that you are a nutter because you're talking to your camera.
>
> 80n
>
> On 10/15/07, David Earl <david at frankieandshadow.com> wrote:
>
> On 15/10/2007 13:58, Jeffrey Martin wrote:
> > I was thinking of getting a voice recorder. Do they have clocks?
> > Can you synchronize the times and use that to find your
> > location on the track?
> > Can I ride on the bus and say, "Tunnel begins.... Now"?
> > to mark a point?
> >
>
> In principle yes, but I quickly abandoned the idea. If I had some
> software to support it it might be easier (e.g. point at a location on
> the track to jump to the relevant bit of commentary)
>
> My Olympus VN-480PC
> (http://wiki.openstreetmap.org/index.php/Audio_mapping) does have
> date/time (timestamps the file), though it would have to be calibrated
> to the GPS like you would a camera timestamp. You would have to  
> start a
> new recording (file) for each POI (it doesn't timestamp each
> pause/resume, only new recordings), and then measure the time into the
> recording when you say 'now'. Also bear in mind you'll be moving at
> 10m/s or so.
>
> I found the easiest way on a bike was simply to do a circle in the  
> road
> so it is marked on the trace. But obviously you don't have that luxury
> on a bus. Waypoints on the GPS were just too tedious - I would need to
> stop cycling; but it may be easier on a bus.
>
> I wish my recorder had voice command activated start/stop. The voice
> activation is too sensitive to car and breathing (using a headset)  
> to be
>   of any use. If I had the "jump to commentary" software I mentioned,
> I'd just leave it running and wouldn't have to listen to hours of  
> heavy
> breathing!
>
> David
>
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