Clips get loud for the last second

pillowpc2001

Newbie Joined: May 28, 2009 18:59 Messages: 23 Offline

Solved by

Jun 06, 2009 17:02

I'm still testing things out with the trial download of PD7 and some Canon HFS100 clips. Using a custom PD setting (HD MPEG-2, 1920x1080, 17Mpbs), I combined 3 clips I took (at the 17Mpbs setting) into 1 file, but at the end of each clip (within the combined file), the sound gets loud for about a second. (I also had the same results with 24Mpbs videos combined into a 24Mpbs file.) (update - I've tried splitting and trimming the last few seconds off, and the sound still goes up for the last second of each clip.)

Anyone know what would be causing this?

Thanks.

(BTW, would I be able to burn HD MPEG-2 files to an AVCHD DVD without losing quality?)

This message was edited 1 time. Last update was at Jun 06. 2009 17:28

pjc

Senior Member Location: Aus Joined: Sep 12, 2008 03:48 Messages: 262 Offline

Jun 06, 2009 17:50

I have not seen the audio problem - very odd.

As for the Mpeg2HD > AVCHD ..... PD rendering of AVCHD is not as good as it should be with artifacts and compression blocking being introduced. They are addressing this apparently.

If your videocard can support video rendering then try using GPU rendering. My 8600GT does a better job and produces acceptable AVCHD hybrid discs.

pillowpc2001

Newbie Joined: May 28, 2009 18:59 Messages: 23 Offline

Jun 06, 2009 18:15

Quote: I have not seen the audio problem - very odd.

As for the Mpeg2HD > AVCHD ..... PD rendering of AVCHD is not as good as it should be with artifacts and compression blocking being introduced. They are addressing this apparently.

So would combining them into the MGEG-2HD file create a quality loss too?

If your videocard can support video rendering then try using GPU rendering. My 8600GT does a better job and produces acceptable AVCHD hybrid discs.

Looks like mine can't - that checkbox is un-checkable for me...

Update - just did another test, and the sound still does the same thing for the MPEG4 AVC setting in PD as well...

This message was edited 1 time. Last update was at Jun 06. 2009 18:27

pjc

Senior Member Location: Aus Joined: Sep 12, 2008 03:48 Messages: 262 Offline

Jun 06, 2009 18:48

Again on the AVCHD side of things.....

Your card may be able to do rendering but you will need to update your drivers. Have a look here to see if your card can do it

Nvidia http://www.cyberlink.com/products/powerdirector/cuda-optimization_en_AU.html

ATI http://www.cyberlink.com/products/powerdirector/ati-optimization_en_AU.html

edit : I forgot to say hybrid discs can only be encoded with AVCHD and are not played on all BD Players.

This message was edited 2 times. Last update was at Jun 06. 2009 18:57

James W

Senior Contributor Location: Lakeland, FL USA Joined: Aug 18, 2008 10:36 Messages: 911 Offline

Jun 06, 2009 21:32

What you are hearing may be comming from the camera. I get this when I press the record start/stop button. It always occurs just as the button is depressed. The button itself does not make any audible sound but something gets picked up as the button is depressed. You can hear this even when playing a file back on your TV. Q9300 2.5 GHz
4 GB Ram
Nvidia 9800 GT

pillowpc2001

Newbie Joined: May 28, 2009 18:59 Messages: 23 Offline

Jun 07, 2009 11:54

No, it's not from the camera, because it still did it even when I split or trimmed the clip, in other words the last second was different each time. And when I play the clip in PD before outputting to the new file, the sound increase isn't there.

And I checked and it looks like my video card isn't NVIDIA or ATI - I think it's Intel... Is there a driver I can download to update it for the GPU rendering, or will that one not work with it?

pillowpc2001

Newbie Joined: May 28, 2009 18:59 Messages: 23 Offline

Jun 07, 2009 13:29

Well, I found a "solution" - I put it in quotes because it's not exactly an ideal solution - if I split the audio of each clip, it stays normal... This also keeps SVRT from being available though...