Reply 20 of 58, by almeath
No problem. I am glad to help.
I think I further narrowed down this issue. I have found that when switching to windowed mode and moving the Mac mouse cursor rapidly, there is no slow down in the audio. However, clicking back into the DOSBOx window and repeating this with the DOS cursor does cause the slow down.
So some games are exhibiting slow down in the audio when the DOS mouse cursor is moving across the screen, usually when it is done very fast but sometimes when it is scrolled more slowly across the screen. The same thing happens in either full screen or windowed mode. I suspect this could happen with any fast moving graphic and maybe not just the mouse cursor, but I have not found an example yet, and that would not explain why the issue is tending to happen in the opening menus of games and not in the games themselves where there is plenty of graphic movement going on.
I have tested very small and very large resolutions, opengl vs. overlay, and different sound sources from soundblaster to MT-32 and General MIDI. None of these vary the results. The issue can be tested in the following games, all on the main menus.
- Warcraft 1
- Warcraft 2
- Hoyle Classic Card Games
- Space Quest 6
What puzzles me is, why it apparently only affects a small number of games. Some games that use the same engine (i.e. the Sierra SCI games) are not equally affected.
DOSBox SVN for macOS (x86-64) - customized with Munt MT-32, Nuked OPL3, 3dfx Voodoo, Extra RAM, Large HD, and more.
https://github.com/almeath/DOSBox-SVN-64-bit-for-macOS