The audio/speech get out of sync and it gets worse the longer a video plays. I'm using widows 7. Help?

Same here in Windows 10 64-bit. If you look up the videos in the game directory and play them with a video player like VLC player, they are fine. The game engine might be messing with the framerates causing the audio to go out of sync over time or something.

EDIT:
Ok, here's what I've done so far and it seems to have fixed it (at least in the opening cutscene).

- Right clicked speaker icon on the bottom right corner in windows, and selected "Playback Devices"
- Found my headphones, right clicked, "Properties"
- Clicked "Advanced" tab, and changed Default Format to "2 channel, 24 bit, 192000 Hz (Studio Quality)
- Apply and close all that

Then I opened up the Quicktime Player.
- Clicked the "Edit" menu, Hover over "Preferences" and then click on "Quicktime Preferences"
- Click the "Audio" tab, and under "Sound Out" I selected:
-- Rate: 192 khz, Size: 24 bit, Channels: Stereo (L R)

I think it was just a mismatch between your audio device's output frequency versus what Quicktime player outputs.

Hope that works. Now JM3 doesn't look like a 1970's, poorly dubbed kung fu movie lol.

Thank you for the suggestion! I tried as you suggested and it seems to have help somewhat. The audio is more in sync than it was, but still gets out of sync after a while. I've been messing around and trying out the various bit rate settings and still can't find anything that doesn't get out of sync. I also tried playing the videos in VLC and with Quicktime Player and can confirm that they play just fine in both. It seems they only get out of sync while in game. Not sure if I'm going to be able to get the videos synced perfectly, but at least with the tweeks you mentioned it's fairly playable.

No Quicktime Player on Windows 11. Any solutions for later OS's?

Any luck with this?