Trigger & Pre buffer at DVinfo.net

Ronan Fournier · February 25th, 2010, 05:33 AM

Erased message, sorry.

Dave Sperling · February 25th, 2010, 07:22 AM

Hi Ronan,
Haven't been using the record buffer on Nano yet myself, but as a point of reference, on the XDcamHD cameras, turning on 'cache record mode' on the camera automatically puts the time code into 'free run' mode.
If the Nano could trigger from TC and have cache record enabled, then it would have to 'pre-compute' and embed time code for the cached picture, and thus also would have duplicate time code created at every cut point! - or else time codes would not match what you're recording in camera.
I seem to remember at one point DV Rack doing something where they created an additional file for the 'pre-cache data' when the camera rolled, which could be confusing, but also could be a possible solution, if implementable...???

Ronan Fournier · February 25th, 2010, 08:15 AM

Erased message.

Dan Keaton · February 25th, 2010, 09:04 AM

Dear Ronan,

We will look into this as soon as possible.

By the way, your English is very good!

Ronan Fournier · February 25th, 2010, 09:54 AM

I'm extremelly confused, Dan.
I've done more tests after recharging the Nano battery and now the pre buffer works in any case, even with the trigger set on "LTC/ Emb TC".
I don't know what's going wrong when I did the test yesterday and this morning but my supposition that it was incompatible with "LTC/Emb TC" was false. Probably it was just a battery problem, because it shuts down few seconds after that andI'm sure my settings were correct. Now I can't reproduce this supposed bug.
Anyway it's my fault. Your engineers have certainly a lot of work to do and I really don't want to disturb them with false issues!
The Nano and the pre buffer rocks!
Sorry for my "beta tester syndrom"!

Dan Keaton · February 25th, 2010, 10:10 AM

Dear Ronan,

Wow, that is good news.

When we receive reports, we first test it in our labs.

That is why I usually ask for additional details, such as what settings were used.

Then, when we can dupicate the problem, we are in a great position to find the problem, develop a fix, then retest to ensure that we have actually fixed the problem.

It is also nice to have feedback, such as yours today.

February 25th, 2010, 05:33 AM	#1
Ronan Fournier Major Player Join Date: Jun 2005 Location: Paris, France Posts: 201	Trigger & Pre buffer Erased message, sorry. __________________ http://www.songesdemoai.com/ Last edited by Ronan Fournier; February 25th, 2010 at 10:01 AM. Reason: I was wrong, my information was not correct.

February 25th, 2010, 08:15 AM	#3
Ronan Fournier Major Player Join Date: Jun 2005 Location: Paris, France Posts: 201	Erased message. __________________ http://www.songesdemoai.com/ Last edited by Ronan Fournier; February 25th, 2010 at 09:57 AM. Reason: No more reason to write that!

February 25th, 2010, 09:04 AM	#4
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Dear Ronan, We will look into this as soon as possible. By the way, your English is very good! __________________ Dan Keaton Augusta Georgia

February 25th, 2010, 09:54 AM	#5
Ronan Fournier Major Player Join Date: Jun 2005 Location: Paris, France Posts: 201	I'm extremelly confused, Dan. I've done more tests after recharging the Nano battery and now the pre buffer works in any case, even with the trigger set on "LTC/ Emb TC". I don't know what's going wrong when I did the test yesterday and this morning but my supposition that it was incompatible with "LTC/Emb TC" was false. Probably it was just a battery problem, because it shuts down few seconds after that andI'm sure my settings were correct. Now I can't reproduce this supposed bug. Anyway it's my fault. Your engineers have certainly a lot of work to do and I really don't want to disturb them with false issues! The Nano and the pre buffer rocks! Sorry for my "beta tester syndrom"! __________________ http://www.songesdemoai.com/

February 25th, 2010, 10:10 AM	#6
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Dear Ronan, Wow, that is good news. When we receive reports, we first test it in our labs. That is why I usually ask for additional details, such as what settings were used. Then, when we can dupicate the problem, we are in a great position to find the problem, develop a fix, then retest to ensure that we have actually fixed the problem. It is also nice to have feedback, such as yours today. __________________ Dan Keaton Augusta Georgia

February 25th, 2010, 07:22 AM	#2
Dave Sperling Major Player Join Date: Jan 2010 Location: Tinton Falls, NJ Posts: 780	Hi Ronan, Haven't been using the record buffer on Nano yet myself, but as a point of reference, on the XDcamHD cameras, turning on 'cache record mode' on the camera automatically puts the time code into 'free run' mode. If the Nano could trigger from TC and have cache record enabled, then it would have to 'pre-compute' and embed time code for the cached picture, and thus also would have duplicate time code created at every cut point! - or else time codes would not match what you're recording in camera. I seem to remember at one point DV Rack doing something where they created an additional file for the 'pre-cache data' when the camera rolled, which could be confusing, but also could be a possible solution, if implementable...???