Hi Paul,
This is what I do: 1. transfer my recordings from recorder to iMac,
either using a card reader (for Compact Flash cards) or else direct
from the little Olympus LS10, using a USB lead. Each batch of
recordings is in a folder. I give the folder a name that includes
the date. Then I open the folder and in the Finder Menu I click
'View as List'. Now I have four columns, showing the number of the
file, the date modified (which shows up the ORIGINAL DATE OF THE
RECORDING, not the date I made the transfer). Another column shows
the size of the file in MB, and the last column shows all the files
as 'WAVE Audio File'.
Nowhere is there a column 'Date Created' within this folder.
If I click once on an individual file then type Command 'I' (for
information) the pop up box says amongst other things,
Created: --
Modified: (gives time and date recording was originally made)
If I meddle with the file in any way, then it still says Created: --,
then Modified: (gives current time and date).
So how do I access the 'Created' information? Why does it just show
-- ?
Is this a Mac thing? Do PC users get a whole raft of other information?
cheers,
Vicki
On 23/04/2010, at 12:32 PM, Paul Jacobson wrote:
> Hi Vicki
>
> The only dumb question is the one you don't ask!
>
> Mac OSX (and I assume a similar case holds for WinOS) recognises
> two date and time stamps relating to files - Creation Date and
> Modification Date. Copying the WAV files from your recorder to
> your computer will preserve the Creation Date but will alter the
> Modification Date. If you edit the file and "Save" back to the same
> disk file you should retain the original Creation Date but get an
> altered Modification Date. Once you "save as" or "save" to a
> different file you are effectively creating a new file and the
> Creation Date will reflect the date and time this was created, so
> you loose the date stamp of the original file.
>
> This is the information the HDP2 embeds (minus timecode "junk" and
> xml header) as metadata:
>
> <dict>
> <key>description</key>
> <string>tTAPE=091231
> </string>
> <key>originationDate</key>
> <string>2009-12-31</string>
> <key>originationTime</key>
> <string>06:30:09</string>
> <key>originator</key>
> <string>TASCAM HD-P2</string>
> <key>originatorReference</key>
> <string></string>
> </dict>
> .
> This information will survive editing providing you save using a
> BWF aware application and is far better than relying on file system
> creation dates. I'd recommend unless you have a really compelling
> reason to save to AIFF that you should consider using WAV for
> archives and edited files.
>
> cheers
> Paul
>
>
>
> On 23/04/2010, at 10:28 AM, vickipowys wrote:
>
>> orry to throw in a really dumb question, BUT
>>
>> If I make a recording on a flash-card recorder then it gets
>> automatically date and time stamped (always assuming that I have set
>> the time-date correctly in the reccorder).
>>
>> When I later process the recording (let's say I remove 5 minutes of
>> footsteps and preserve one minute of birdsong), then I am left with
>> an AIFF file on a Mac that has lost the date and time stamp.
>>
>> Are you proposing that the ideal way for archiving is to then re-
>> embed time, date and additional data that will be permanently tagged
>> to the sound file?
>>
>> For the moment I'm sticking with my manual database, thanks all the
>> same, and verbal announcements regarding species name, description,
>> behaviour, place, weather, etc.
>>
>> cheers,
>>
>> Vicki
>
>
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