Audio interrupts

[joki]

V.302:

For quiet a few versions I have some audio playback interrupts now; its not stuttering, but complete stop of audio playback of the game for over half a second. It is especially long, when the audio clip is not cached and is played for the first time, but even after running the game for some time, there are still some audio interrupts.

I did not have any audio issues before, when the game still ran on Unity 4; this issue was introduced for me with a few releases into Unity 5 (not the first Unity 5 minor thou).

Anyone else experincing this? Any way for me helping to debugging this?

System:
Chipset: Intel H61(B3) chipset
Cpu: i5-2500k
Ram: 8 GB
Gfx: Radeon HDD 6780 (derivate with higher mem & clock speeds than OEM)
Audio: Realtek® ALC887 8-Channel High Definition Audio CODEC (onboard, but decent)

Edit: Updated to the latest driver R2.76, still the same. Going back to the prior version (R2.71), since it was a lot lighter on RAM. Note that there is no stuttering at all in the main menu, just sometimes on the world map.

Edit2:

Total: 43.396706 ms (FindLiveObjects: 2.087974 ms CreateObjectMapping: 2.528775 ms MarkObjects: 36.144791 ms  DeleteObjects: 2.634232 ms)
Total: 302.420624 ms (FindLiveObjects: 4.265228 ms CreateObjectMapping: 2.122504 ms MarkObjects: 295.888855 ms  DeleteObjects: 0.143719 ms
Total: 235.234940 ms (FindLiveObjects: 2.945001 ms CreateObjectMapping: 1.561003 ms MarkObjects: 229.977982 ms  DeleteObjects: 0.749082 ms)
Total: 402.158722 ms (FindLiveObjects: 4.784111 ms CreateObjectMapping: 1.890749 ms MarkObjects: 395.319275 ms  DeleteObjects: 0.163317 ms)
Total: 505.498535 ms (FindLiveObjects: 4.756425 ms CreateObjectMapping: 1.853730 ms MarkObjects: 498.730347 ms  DeleteObjects: 0.157095 ms)
Total: 420.155334 ms (FindLiveObjects: 2.395322 ms CreateObjectMapping: 1.276986 ms MarkObjects: 411.428925 ms  DeleteObjects: 5.053196 ms)

Just played a bit on mystery lake, times ranged from 230ms to a bit over 500ms. Are these times normal?