Audio alignment issue

musicturtle

Newbie Joined: Jan 01, 2018 23:49 Messages: 5 Offline

Solved by

May 18, 2020 15:25

I made two videos in PD18 Ultimate.

When I put them in a new project back to back and render them about halfway through the second section the audio starts to get off track and worsens as the video continues.

I am not doing anything fancy here.

Any suggestions?

Carl312

Senior Contributor Location: Texas, USA Joined: Mar 16, 2010 20:11 Messages: 9090 Offline

May 18, 2020 18:26

Quote I made two videos in PD18 Ultimate.

When I put them in a new project back to back and render them about halfway through the second section the audio starts to get off track and worsens as the video continues.

I am not doing anything fancy here.

Any suggestions?

If your audio is from a variable rate MP3 source, that is known to cause sync problems with audio and video.

Variable rate audio from any source may cause the sync to drift. Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.

musicturtle

Newbie Joined: Jan 01, 2018 23:49 Messages: 5 Offline

May 18, 2020 18:42

Quote
If your audio is from a variable rate MP3 source, that is known to cause sync problems with audio and video.

Variable rate audio from any source may cause the sync to drift.

Thanks for your reply. I did compress them with VLC media player before putting them together. Could that be the issue?

Carl312

Senior Contributor Location: Texas, USA Joined: Mar 16, 2010 20:11 Messages: 9090 Offline

May 18, 2020 22:44

Quote

Thanks for your reply. I did compress them with VLC media player before putting them together. Could that be the issue?

I do not know. If VLC used a Variable bit rate to compress, then it is possible. If you use constant bit rate, you should not have a sync problem. Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.