I'm looking for a way to take GPS time and generate a signal that can be
recorded on the audio track of a video recording to time stamp it. This is so
it can be aligned with other data that's collected with GPS based time. It
needs to be portable/small (i.e. Something you could attach to a smal
Lux, James P skrev:
I'm looking for a way to take GPS time and generate a signal that can
be recorded on the audio track of a video recording to time stamp it.
This is so it can be aligned with other data that's collected with GPS
based time. It needs to be portable/small (i.e. Something you cou
On 5/10/09 11:21 AM, "Magnus Danielson" wrote:
> Lux, James P skrev:
>> I'm looking for a way to take GPS time and generate a signal that can
>> be recorded on the audio track of a video recording to time stamp it.
>> This is so it can be aligned with other data that's collected with GPS
>> ba
> As a model for what they're trying to do, say you were going to
> measure the acceleration due to gravity by videotaping a falling
> object against a scale in the background. Except that the motion is
> more complex.. Maybe imagine putting an accelerometer in the "payload"
> of a trebuchet... An
Hi James:
You might want to get a KIWI-OSD, Video overlay of GPS precision time
stamp. It adds HH:MM:SS FF at the bottom of the image and
so can be seen in every field. They have also developed a way to
calibrate the camera shutter in relation to the frame time by using a
numb
Lux, James P skrev:
On 5/10/09 11:21 AM, "Magnus Danielson" wrote:
Lux, James P skrev:
I'm looking for a way to take GPS time and generate a signal that can
be recorded on the audio track of a video recording to time stamp it.
This is so it can be aligned with other data that's collected wi
Brooke
The KIWI-OSD is no longer available.
However some circuit detail is available at:
http://spiff.rit.edu/richmond/ritobs/kiwi/kiwi.html
It really should be reworked to use a more reliable time source such as
a GPS timing receiver.
Bruce
Brooke Clarke wrote:
> Hi James:
>
> You might want t
On 5/10/09 12:10 PM, "Hal Murray" wrote:
>
>
>> As a model for what they're trying to do, say you were going to
>> measure the acceleration due to gravity by videotaping a falling
>> object against a scale in the background. Except that the motion is
>> more complex.. Maybe imagine putting a
On 5/10/09 12:15 PM, "Brooke Clarke" wrote:
> Hi James:
>
> You might want to get a KIWI-OSD, Video overlay of GPS precision time
> stamp. It adds HH:MM:SS FF at the bottom of the image and
> so can be seen in every field. They have also developed a way to
> calibrate the came
Lux, James P skrev:
On 5/10/09 12:15 PM, "Brooke Clarke" wrote:
Hi James:
You might want to get a KIWI-OSD, Video overlay of GPS precision time
stamp. It adds HH:MM:SS FF at the bottom of the image and
so can be seen in every field. They have also developed a way to
calibrat
Hi,
low tech solution may be to produce second pips of audio with long
one minute pips,
a bit like WWV, and inject them into the mic plug (in parallel to the
mic) or use a small speaker.
That together with a clap-board start should enable any frame to be
timed.
cheers, Neville Michie
On
On 5/10/09 4:26 PM, "Magnus Danielson" wrote:
> Lux, James P skrev:
>>
>>
>> On 5/10/09 12:15 PM, "Brooke Clarke" wrote:
>>
>>> Hi James:
>>>
>>> You might want to get a KIWI-OSD, Video overlay of GPS precision time
>>> stamp. It adds HH:MM:SS FF at the bottom of the image
Hi there,
It turns out that the NTP package has a built-in utility called "tg"
which can generate IRIG-B time code. I'm not familiar with what you are
trying to do. If you have a computer that is keeping accurate time
(through your GPS clock??), you can generate a nice audio IRIG-B. It
was deve
> I'm not sure if any of you would be interested in this modified "tg".
> Let me know if you do. I had submitted it to the NTP gurus some time
> ago, and they didn't seem too terribly interested.
If anybody has bug fixes or enhancements to the ntp code base, I'll be glad
to help get them merge
Lux, James P skrev:
On 5/10/09 4:26 PM, "Magnus Danielson" wrote:
Lux, James P skrev:
On 5/10/09 12:15 PM, "Brooke Clarke" wrote:
Hi James:
You might want to get a KIWI-OSD, Video overlay of GPS precision time
stamp. It adds HH:MM:SS FF at the bottom of the image and
so
>
> I'm looking for a way to take GPS time and generate a signal that can be
> recorded on the audio track of a video recording to time stamp it. This is so
> it can be aligned with other data that's collected with GPS based time. It
> needs to be portable/small (i.e. Something you could atta
I've not seen a description of the real problem, only that it needs to
be small and cheap.
Cheap I can do (as in free) since I have too many time code
generators/receivers.
IRIG-B is a 1 KHz audio time code designed to be recorded for a time
reference.
The Datum units are 1.75" rack-mount boxes w
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