[Openstreetmap] Re: geodriving results

[Jim Ley]

"Alex Willmer" <alex at moreati.org.uk> wrote in message 
news:4294DE8A.8080601 at moreati.org.uk...
> Tom Carden wrote:
>
>>> * needs people to tap out the metadata who don't get carsick doing so
>>> (eg not me)
>>>
>>
>> Have you thought about doing this with audio?  You can get really tiny 
>> gadgets now which record audio files with a timestamp, and cut out 
>> silence. Some clever editing and some speech-to-text scripting and you'd 
>> be close to automatic annotation... maybe.
>
> Do you have a link to one of these timestamping audio recorders, it would 
> be useful for me when collecting data by bike.

A simple minidisc recorder can give you excellent quality, and good relative 
timestamps.

We've even previously used seperate Right/Left channels with one channel 
providing timing clicks from a source ( a beep generated from a pc in our 
case) and the other the audio.  seperating gave you the syncronisation of 
the event to the commentary.

Jim.