What specific video card/graphics card does your computer use?
Intel HD Graphics 2000 or higher?
If so, go to Edit Menu/Preferences/General and determine the influence (with and without check mark) of the
option "Use Hardware Acceleration (works on Intel HD Graphics 2000 and higher)".
Please let us know the results and then we can decide what next.
Thank you for the very prompt reply. I will check this out and get back to you and also compare the settings for the 2 versions of the software I have installed.
Sorry but I can't see the specific video card. I am running Lenovo Carbon X1 laptop I7 processor 2.1/2.7ghz 8gb RAM W7 64 bit with touchscreen.
OK. If I uncheck the use hardware acceleration the video takes much longer to render but is noticeably smoother. However the audio is still crackling.
My graphics per the web site is Intel Graphics 5000.
Thanks for the follow up and results.
With a Intel HD Graphics 5000 video card/graphics card, I might have expect better results with that "Use
Hardware Acceleration..." preference enabled.
I am assuming that you are exporting your Timeline using Publish+Share/Computer/AVCHD with Presets =
M2T H.264 1920 x 1080i25. What happens to smoothness and audio crackling when you export using
Presets = MP4 H.264 1920 x 1080p25 with and without the "Use Hardware Acceleration...." enabled?
In that case, you would be going from Dolby Digital to AAC.
Have you confirmed from Device Manager/Display Adapters that the name of your video card/graphics card =
Intel HD Graphics 5000?
We will be watching for your results when you get a chance.
The follow up are appreciated.
I did not see your post numbered 5 until after I had posted (post number 6).
On your computer do you actually see 5000 included in the Intel HD Graphics name?
Device Manager/Display Adapters or anywhere else?
Not sure where to look re the name of the adapter but the lenovo web site for my laptop only has 2 possibilities - HD 4000 or HD5000 and as I think I got the top spec it is the 5000
When I tested the rendering before using the MP4 but with video acceleration on the video was still a bit jerky but less so and the audio was fine. I will test with the acceleration off.
Also note that before contacting you I did a number of other tests with the video acc'n on using different settings. Interestingly if I manually changed the bit rate down to 15-18 mbps using MTS, the video was still a bit choppy but the audio was fine. Bizarre.
This is all quite confusing - above all why I don't have any issue when running PE10 which is still installed.
Thanks for the Device Manager/Display Adapters screenshot.
The reason that I asked about that related to a post from PRE_help regarding
the applicability of that preference if one had a video card/graphics card which was
described Intel HD Graphics and not Intel HD Graphic 2000 or higher. It was my
understanding from PRE-help's reply that the preference did not apply to an Intel card which
was just named Intel HD Graphics. But, I wonder about the "Family" in your card name related
possibly to 2000 and higher.
We will be watching for your results with an alternative preset.
Do you know or can you determine from a video audio properties readout what the video bitrate and audio bitrate are in the source video audio file?
See View Menu/Tree View.
Publish+Share/Computer/AVCHD with Presets = M2T H.264 1920 x 1080i25 uses
Video...Target 25 Mbps (megabits per second) and Maximum 30 Mbps.
Audio...with its Dolby Digital, uses 192 kbps (kilobits per second).
Did you customize any of the settings under the Advanced Button/Video Tab and/or Audio Tab or leave the defaults?
The MP4 setting for audio is fine both with and without h/w acc'n.
The MP4 setting is smoother than MTS and smoother w/o h/w acc'n. However the MTS appears generally a bit sharper especially when panning.
I also noted earlier that the MPEG2 setting with h/w acc'n was fairly smooth but again did not seem as sharp as MTS.
While some of the other settings are borderline OK I am concerned that if I want to make avchd disk I will revert to the original MTS problems. Also with a brand new top spec laptop the h/w acc'n should work.
Do you know what PE10 uses because that is working perfectly on my setup?
Please review the following workflow for your source video. Please try if you have not already.
1. Set the project preset manually to
Full HD1080i25 5.1 channel
If you have not set the project preset manually before, please see the how to at the bottom of the following
2. Publish+Share/Computer/AVCHD with Presets = MP4 H.264 1920 x 1080p25
Under the Advanced Button/Audio Tab
Leave the settings under Advanced Tab/Video as is for now. I am tempted to lower Target and Maximum
Video Bitrates to 20 Mbps each, but want to focus on 5.1 channel audio project and 5.1 channel audio export
with good quality video which is in sync with non crackling audio.
From the your screenshot I cannot be sure if that is
Full HD 1080i25 or Full HD 1080i25 5.1 Channel
For the proposed troubleshooting we need Full HD 1080i25 5.1 Channel
Open to the Expert workspace of the project which we have been discussing and look for the 5.1 designation on Audio 1 (top right corner)
See screenshot below.
That means that you have set the right project preset which included the 5.1 channel
in its description. That project preset is critical to getting the AAC 5.1 channel export that I am suggesting.
Consider opening a new project and doing this as a mini test run to see the results before you make
decisions on what next for the real project with which we have been dealing.
OK There is no little 5.1 on the audio line. I will try a mini test as you suggest.
Thanks. Looking forward to the results when you schedule permits.
Thanks for your attention. I will have a test run tomorrow and see what happens.
Ok - I have now done a whole series of tests and the results are set out below.
My test project comprises a still pic with pan/zoom and some effects, 6 video clips and a WMA lossless audio on the soundtrack line.
My base case is a movie rendered in PRE10 using MTS-H2641920x1080i 25 preset. The result is a smooth video and audio.
Test 1 - using the same settings in PRE13 with h/w acc'n on. Pan/zoom flickers and jerky. Video flickers, jerky. Audio stutters with some crackles.
Test 2 - as for Test 1 but with h/w acc'n off. Pan/zoom no flicker and smooth. Video no flicker fairly smooth. Audio stutter and crackle
But Test 11 - as for Test 1, with export video only. Pan/zoom and video both fine even though the h/w acc'n is on. So it is not the h/w acc'n on it's own causing the video problem.
I also separately removed the audio from the clips and the WMA file under Test 1. In both cases the video and remaining audio were distorted.
Test 8 - as for Test 1 but with VBR set at 15-18mbps. Video flickers and stutters but audio is fine similar to base case.
Test 9 as for Test 2 but with VBR set at 15-18mbps. Video and audio fine similar to base case.
Tests 3&4: using MP4 preset with adjusted audio as suggested with and w/o h/w acc'n. Both cases the same. Audio fine. Video does not flicker but not as good where the video camera pans as the MTS setting. ( I have noticed this with PE10 too which is why I tend not to use MP4).
1) There must be something in the way the audio interacts with the h/w acc'n to cause video distortion.
2) This audio problem is not specific to the type of audio input.
3) Lowering the video bit rate under h/w acc'n fixes the audio. Removing the h/w acc'n as well then fixes the video.
3) The effect is limited to the M2T settings.
4) The effect is caused by a change in the software program from PRE10 to PRE13
OK - so I also reran Test 1 (MTS with h/w acc'n) but with multiplex turned off. The separate audio and video files were fine. So we are looking at a bug in the PRE13 multiplexing?
I also note:
PRE10 has 2xpass option for VBR whereas PRE13 does not. Seems odd.
PRE13 has mux rate adjustment whereas PRE10 does not.
My mux rate is set by default at 0kbps. Is this correct? Could it be the cause of the multipexing issue?
It is already known that Premiere Elements 13 has no "VBR, 2 Pass" for bitrate encoding in Advanced Expert settings for AVCHD and XAVC-S under Publish+Share/Computer/.It is just not included. PRE_help has confirmed this situation in one of the recent threads here and writes that it should
be changed/corrected in the "next version". When I questioned PRE_help about a sooner resolution (as in a 13.1 Update), PRE_help
was not at liberty to comment on that question.
As for the Multiplexer Tab's new mux rate under Advanced settings for Publish+Share/Computer/AVCHD with Presets = M2T H.264 1920 x 1080i25 in this case, in my Premiere Elements 13 Windows tryout it is set at 0
When you say that you turned it off, do you mean that you left Mux Rate left a 0? If so, what did you have it on before
when the crackling existed?
I will do some testing on this today.
Please clarify...did you do the mini test run with the 5.1 channel project preset and the export of the Timeline to a AAC 5.1
Channel export as I described? If so, same crackling noises in the audio? I will study your results further later in the day.
Thanks for the follow ups.
Add On...Please excuse question, but what is "h/w acc'n"
Quick note....doing some homework on Mux Rate....from what I have read about it, the 0 setting appears to instruct the project to calculate
the Mux Rate according to the source files. So, 0, does not really mean off?
What follows with the 0 setting is supposed to be the program asked to determine how much video and audio is forced into each packet of the stream. But
are the prior versions without the Mux Rate option doing a Mux Rate = 0 calculation behind the scenes?
But the issue is your crackling 5.1 channel audio source after export apparently as stereo needs thinking about.
Thanks. To clarify:
Under MTS I can't use the audio settings you suggest but I did use them on MP4. However, the MP4 audio was OK anyway. The problem with MP4 video is it doesn't seem to handle camera pan as well as MTS. To my eye it also looks less crisp and fluid. This may be due to the de-interlacing of the video. So on balance I would prefer decent video and stereo to less good video and 5.1 sound. Annoying you can't have both!
On the mux settings they were always set at 0kbps. What I did in addition was click "none" as a Test on the MTS setting so the rendering produced a separate video and audio file. Both of these were fine, even with hardware acceleration turned on. So my conclusion is that there is some bug in the TS multiplexer which is causing the problems.
The audio file this produces is AC-3:
The video file is MP4 (interlaced):
I have now rendered the 30min movie using no hardware acceleration MTS adjusted to 15-18mbps to try to replicate my test 9. Unfortunately, unlike my short test movie, this has video flicker and pan/zoom is not smooth. Audio is fine.
Ok - I think I can definitely prove it is a mux issue. If I render separate audio and video streams by clicking "none" under multiplex they separately play perfectly. If I then combine them in a new project using the MTS setting the audio cracks.
Your progress sounds very good. I will be looking into this and reporting back my user to user observations.
I am still focusing on the 5.1 channel versus stereo handling of the file. I want to rule that in or out as a
contributory factor in all this. Do you have any video with stereo instead of 5.1 channel audio that you could
put through the version 10 - 13 Mux Rate comparison?
If not, I will be looking at all these factors as soon as possible.
To be continued
I am in the process of trying to take the separate video and (stereo) audio streams from my project which were created in PRE13 and seeing if I can mux them in PRE10. Unfortunately it is slow so will be done overnight. (I should have tried it with my test project). If it works it will prove the issue is PRE13 muxing.
There may be some other software out there which can do the muxing without reformatting the video which is what PRE seems to do.
OK so I think I have narrowed it down to the muxing in PRE13. If I take the project in PRE13 and render in separate video and stereo audio streams by turning off the multiplexer the separate streams are fine. But I still get problems if I reload these components into PRE13 to mux. However there are no problems if I reload them into a separate PRE10 project and mux there. PRE13 must therefore have introduced a bug into the MTS muxing process. What chance of Adobe fixing this I wonder?
Thanks very much for your tip re hardware acc'n which together with lower bit rate settings provided a temporary fix until Adobe come up with a patch. They have been in contact so I think they are investigating the issue.
Wonderful news that you can now move forward with your Premiere Elements projects.
Great job in developing a workflow for a temporary fix.
Thanks for the follow up which is appreciated by all.