naturerecordists
[Top] [All Lists]

6. Re: from metadata to archiving - georeferencing common .wav

Subject: 6. Re: from metadata to archiving - georeferencing common .wav
From: "Raimund" animalsounds
Date: Mon May 17, 2010 12:17 am ((PDT))
Hi Vlad,

Yes, I just set the RTC of the Fostex to the precise local time.

However, if one forgot to adjust the time properly, any potential time lag =
(including time zone or daylight saving offsets) can also be compensated  a=
fterwards in my software (the software internally adds these user-defined o=
ffsets to the original time stamp of the .wav file). The software than simp=
ly searches for the nearest entry in the GPS track log file and saves its c=
oordinates (and GPS UTC time stamp) into the BWF metadata.

Regards,
Raimund

--- In  Wolodymyr Smishkewych <wolodymyrsm=
> wrote:
>
> Raimund,
> thanks for this. I am also interested in the exact "how", in other words =
the mechanics of the "automatic" assignment. Did you simply sync the RTC of=
 the Fostex to that of the GPS device, and then match them up later when th=
e WAV files were downloaded? As far as I can tell (I have a Fostex as well)=
 there isn't a way to sync the recorder with an external device logging, or=
 is there? Wouldn't you have to try and sync RTCs? (Not too hard with the F=
R2-LE's 00sec-set feature.) I would like to do much the same for audio+vide=
o+GPS.
>
> Cheers, and thanks,
> Vlad
>
>
> Wolodymyr Smishkewych
> wolodymyrsmishkewych.com
> 
>
>
>
> On 16 May 2010, at 19:01, Raimund wrote:
>
> > Here is a sample file that I recorded with the SONY PCM-M10 and that wa=
s geo-referenced with Avisoft-SASLab Pro:
> >
> > http://www.avisoft.com/sounscapes/100516_16.WAV
> >
> > The PCM-M10 initially does not create a bext metadata chunk, but my sof=
tware creates one that also includes the creation date and time, which is d=
erived from the file system's modification date and the duration of the fil=
e.
> >
> > Regards,
> > Raimund
> >
> >
>
>
>
>








<Prev in Thread] Current Thread [Next in Thread>
  • 6. Re: from metadata to archiving - georeferencing common .wav, Raimund <=
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU