Hi fremitus,
Members have answered this sort of issue previously (I have done so many times). The issue generally boils down to:
1. Underpowered graphics card
2. High bitrate video
Resolved by:
Using a bigger better computer with a
bigger better graphics card,
Updating drivers.

For members to give you a better answer we'd need to have four bits of information from you, to start with.
See Guide: http://forum.cyberlink.com/forum/posts/list/45453.page
1. Version build info. Part A,
2. Diagnostic. Part B,
3. MediaInfo of the video in the tracks. Part J.
4. Screenshot of the Edit workspace with your project insitu. Part E & F.

Dafydd

thanks dafydd.

i was a little short in my post for sure although i didn't find anything easy with the ol' UTFSF method.

I have an i7 3.0 with 16GB of ram, but it's a laptop so the vid card is garbagio Nvid 5200M (driver 10.18.13.5382)

The video i'm editing is none too demanding as it's an exported WebEx that's 1024x768 but only 5fps

PD v# is 14.0.1931.0

I'm not sure that answers everything, but I really didn't feel like I was asking a whole lot of the system here. no?

Basically at the edit point, the audio sounds gated, until it becomes audible. the waveform is there, just not output until a short delay. producing the movie doesn't resolve it, so I can't just fly blind (or deaf in this case) and hope.

DxDiag finds no problems. (corporate pc, can't send that file without being a bad boy)

unp;ugging external monitor, quitting PD and re-opening the project. all the same.

Thanks for your insight.

When you bring the WEBEX file into your Library, right-click it for Properties. Is the Audio "ARF"? If not could you attach a brief 10-20 second WEBEX file to test. I think it's an audio format problem and conversion may help. HP Envy Phoenix/4thGen i7-4770(4@3.4GHz~turbo>3.9)
Nvidia GTX 960(4GB)/16GB DDR3/
Canon Vixia HV30/HF-M40/HF-M41/HF-G20/Olympus E-PL5.
Tape capture using 6 VCR, TBC-1000, Elite BVP4+, Sony D8 camcorder with TBC.
https://www.facebook.com/BarryAFTT

it's a wmv. i converted it right off the bat.

Does the WMV play correctly in other software? HP Envy Phoenix/4thGen i7-4770(4@3.4GHz~turbo>3.9)
Nvidia GTX 960(4GB)/16GB DDR3/
Canon Vixia HV30/HF-M40/HF-M41/HF-G20/Olympus E-PL5.
Tape capture using 6 VCR, TBC-1000, Elite BVP4+, Sony D8 camcorder with TBC.
https://www.facebook.com/BarryAFTT

yes. the wmv is just fine. this only happens at the edit points within PD.

Please view this little clip for better explanation. Looking more like an audio issue to me.

https://youtu.be/MuzdaiRhMOE

<bump> any insight is greatly appreciated!