[John Lenihan]

I figured it out.

I am going to put the answer here to possibly save someone else trouble.

I had to give names to the clips from each camera. In the project media detail view, there are several columns.
media name, title, comments, tape name are candidates.

Well you have to name the clips from camera one as camera one or anything. Then you have to copy that to other clips from same camera.

Then name the clips from camera two and copy to all camera two clips.

Then save the vegas file. These are not saved in the actual media, only the vegaas file. Then you can sync by timecode and it will put it into the two pairs of tracks they claimed.

John Lenihan

LeniCam Video Productions

John Lenihan

LeniCam Video Productions
https://www.lenicam.com

[John Lenihan]

That would be correct. If you have someone watch the level meter on the camera while the shooter shoots, and it never gets above 0db on the camera meter, than I would expect it to ultimately end up without the either kind of distortion, pcm clipping or ac3 popping.

John Lenihan

John Lenihan

LeniCam Video Productions
https://www.lenicam.com

[John Lenihan]

When the AC3 distortion happens, it is not subtle.

Try this experiment with your editor and representative recorded music you already have.

Raise the gain on the editor so your peaks are well past plus 12 db.

Then render the audio first as a wave file.(PCM)
Then render the audio as an ac3 file.

listen to the difference in distortions.

John Lenihan

John Lenihan

LeniCam Video Productions
https://www.lenicam.com

[John Lenihan]

Brent,

You will have to test that yourself with your own material.

AC3 uses digital signal processing techniques which actually perform calculations in hardware that involve multiplication, and division.

If your signal is always less than zero db ( I think they actually give about 6 db guard band more), then those calculations work fine.

If your signal has a loud spoken word , or music that peaks over that, the calculations have a point where they divide by zero. It causes a loud click in the audio that is VERY obvious.

If you have a fast responding autogain on your camera you will be ok. If you manually adjust the volume during recording to stay below that zero db, you will be ok.

So, It depends on the control of your source, and type of source, and type of recording setting to answer your question.

If you record a sample and cannot hear clicks, then you are safe.

PCM encoding does not have division in its computation, so when you have too high of a signal, you will get distortion, but it will be clipping distortion, and you can often use a filter to compensate for the clipping.

The reason why we can get by with AC3 on the output side, is we as editors can make sure no signals are too high.

I hope this helps

John Lenihan

LeniCam Video Productions
972-378-0446

John Lenihan

LeniCam Video Productions
https://www.lenicam.com

[John Lenihan]

I am able to run cineform

I downloaded vegas pro 10.
I can open up the previous avi file created by cineform.

I tried the avi files from a week ago, and the files from May, when I was using an older version of cineform.

They open and play fine.

However, I am not able to render anything into cineform AVIs because it says it cannot find a cineform codec.

I am using the 32 bit version of vegas 0 on an xp machine.

John Lenihan

LeniCam Video Productions

John Lenihan

LeniCam Video Productions
https://www.lenicam.com

[John Lenihan]

I have never seen anything like that on either of my two cameras in any kind of situation.

I believe you have a faulty lcd. I would contact Sony camera tech support right away.

John Lenihan

John Lenihan

LeniCam Video Productions
https://www.lenicam.com

[John Lenihan]

Mark,

You are right. I have since run into the same problem with network rendering not encoding mpg files across network computers.

I will like you, be looking to see if 10 has anything to address this. I wonder if there would be a way to license just the encoder on the rendering machines.

John Lenihan

John Lenihan

LeniCam Video Productions
https://www.lenicam.com

[John Lenihan]

Thanks for the update Scott,

Hi havent’ done conclusive tests, but it seems like it is the keyboard area that is underneath the lcd panel that is most sensitive.

That looks like the same design as in the z5, so I am not surprised.

I wish that our friendly Sony Product manager would be an active participant so we can help him help make the product better.

John

John Lenihan

LeniCam Video Productions
https://www.lenicam.com

[John Lenihan]

Thanks Carlos,

Would you like to upload the results of your tests?

Regarding Slo Mo, I didn’t know that the NXCAM even had that feature.

John Lenihan

John Lenihan

LeniCam Video Productions
https://www.lenicam.com

[John Lenihan]

Carlos,

I have not done any conclusive tests, but I have observed that if the light is brighter than about a 5.6, the camera will say something like ND1 or ND2 to suggest using the neutral density filter to avoid the aberation. I think that is the camera manufacturer giving a hint.

I usually stay no smaller than an f8 unless I am looking for a specific look. Since you have two ND filters and can set the shutter speed high, that is not a problem.

John Lenihan

LeniCam Video Productions
https://www.lenicam.com

John Lenihan

LeniCam Video Productions
https://www.lenicam.com