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Comments requested: startTime, endTime

To: "" <>
Subject: Comments requested: startTime, endTime
From: Dan Stowell <>
Date: Fri, 26 Mar 2021 15:39:23 +0000
Dear all,

Within TDWG Audubon Core, we are progressively building a list of
standardised terms for describing biodiversity multimedia, including

We're currently considering how best to define (or borrow) terms for
"startTime" "endTime" of sound events in a recording.** There are
various possible formats for this, e.g.:

* Number of seconds from the beginning: e.g. "203"
* Hours:minutes:seconds from the beginning: e.g. "0:02:01.5"
* Real-world clock time in ISO8601 format: e.g. "2021-03-26T15:15:46Z"

If you have opinions about which formats are appropriate in a standard
for biodiversity multimedia annotations, please let me know by a
simple email reply!

Best wishes
Dan Stowell

* For example, recently we standardised freqHigh and freqLow

** We're looking at other standards including IIIF, w3c Media
Fragments, and Timeline Ontology.

Dan Stowell
Associate Professor of AI & Biodiversity
* Tilburg University
* Naturalis Biodiversity Centre
* Jheronimus Academy of Data Sciences

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