I may put this post in the bug forum as well (in the thread about crashing) but with this latest build my mod doesn't appear to be crashing anymore due to the many sounds played. As said before it would crash almost instantly but with the new build - no crashes so far and I haven't changed any of the game's options so the Eduke32.cfg file is the same. My computer hasn't had any other updates either.
I've tried multiple runs and still no crashing so if you did something then you certainly hit it, however its not fully fixed though as if I were to increase my amount of sounds played then it crashes. Currently I play it with 32 sounds and no problems. I then tried my luck and doubled it to 64 but the game crashed instantly as soon as I entered the map.
I only did one test though and only with 64 sounds after that I put it back to 32.
I haven't been able to do much more testing on this due to work getting bust due to Christmas but I have today off so I'll try the amount of sounds at different levels and see how much my computer can take before it crashes.
Also I only managed to try this build out for the first time last week so sorry for the late reply about my crashing situation.
Anyway, I'm happy as I can now actually play the game again with audio

..........unless of course those 14+ tests were all pure luck. (note: due to the memory leak my tests were 2x 5 minute plays on the same map before restarting Eduke32)