no audio from one track but others ok in rendered output, m2ts, SVRT

Marke

Newbie Joined: Jan 16, 2011 03:50 Messages: 7 Offline

Solved by

Jan 17, 2011 04:17

Hello All,

I have a strange one for you. The attached picture is of a 22 minute project, all in m2ts 1080 HD, SVRT output 24Mbps.

The audio track circled in red is mute when I render the entire project (SVRT checked), yet the audio in the rest of the tracks is fine.

However, when I remove all highlighted items from the project and render only the 1st couple minutes, the audio in the circled track is in the output file, but this time SVRT is not available to be checked, but "Hardware video encoder" is.

I have not tried to render the entire project in Hardware video encoder to see if it's an SVRT issue. I don't have another hour tonight to test this, unfortunately, as it's already late.

Does anyone have any ideas what this could be, in any case? An SVRT or SVRT-related bug of some sort?

How do I let CyberLink programmers/testers know about this one?

Best,
Mark.


Filename	PD9_noaudio_m2ts.png	Download
Description	PD9 no audio (circled track in red) in rendered output m2ts (SVRT), but rest of audio is present
Filesize	552 Kbytes
Downloaded:	121 time(s)

Dafydd B

Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline

Jan 17, 2011 05:42

Please can you supply a video sample file? 5 to 10 seconds long unedited. State the camera make and model please.
Thanks
Dafydd

CL: https://membership.cyberlink.com/prog/support/cs/index.do

This message was edited 2 times. Last update was at Jan 17. 2011 05:45

Marke

Newbie Joined: Jan 16, 2011 03:50 Messages: 7 Offline

Jan 17, 2011 22:01

Dafydd,

I'm not sure how much an original video sample (mts) will help as some of the audio tracks made it to the output and some didn't. Here is a short, unedited 7-second clip I'm uploading, though I didn't have any particular audio trouble with this one; the longer ones were too long to upload, 1:06, 188MB.

But you should know I made intermediate m2ts files, using SVRT as much as possible to reduce re-encoding, so those tracks in the previous screenshot have already been mixed and encoded from mts to m2ts, again using SVRT where possible.

The camera used for the original footage was a JVC Everio GZ-HM200 Dual SD High-Def Camcorder.

Thanks,
Marke

Filename	00187.MTS	Download
Description
Filesize	19986 Kbytes
Downloaded:	164 time(s)

Marke

Newbie Joined: Jan 16, 2011 03:50 Messages: 7 Offline

Jan 17, 2011 22:05

I almost forgot, the original JVC footage was recorded in 24Mbps mode, and I'm using PowerDirector 9 Ultra64, latest build 2504.

(As a work around, I spliced the short version that has all audio into the entire version that was missing the audio, which worked.)

So what do you think? ...SVRT-related issue?

Dafydd B

Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline

Jan 18, 2011 05:51

Marke,
thanks for the data so far.
1. I could do with a screenshot of your Edit Workspace please - showing the content of the Media Library.

2. Have you replicated this issue with another video file?

3. Where are the video files stored? the address location please and state the HHD location and type.

The issue could be a video file corruption causing the problem. At the moment there isn't a lot to go on. I would suggest you isolate that particular clip and re-render it to an mts format. Afterwards bring that clip back in and edit etc.

Please let me know what happens. I'm currently waiting for a slow download to bring in the video file.

Dafydd

This message was edited 1 time. Last update was at Jan 18. 2011 07:22