Despite the game itself works pretty well, the fmv videos have audio pauses due to the timing being set wrong in the DOSBox settings.
´The solution can be found in the GOG Forums posted by user Flash-Nine:
I post this for future reference of people who have this problem, because I had the same problem. After searching the internet, I found that it is a known issue that that the WC 3 video sound stutters with cycles=max setting, can be found on the dosbox compatibility page. Unfortunately, that is the setting in the GOG version.
Setting cycles to 70000 fixed the problem for me.
In November, 2024, Gog updated the game, hence the CPU settings differ a bit now:
cycles=fixed
core=dynamic
cputype=auto
cycles=50000
cycleup=10000
cycledown=10000
I run it on:
Windows 11 24H2
on a Nvidia GeForce 1070 Katana
on a AMD FX-8370 Eight-Core Processor@4.00 GHz
I also highly suggest using an analog joystick instead of a gamepad, as the thumbsticks have a different movement pattern (round instead of a rectangle), which means the deadzones are not correctly and correct calibration will fail!