I'm experiencing the same issue: the audio sometimes stutters, but the most recurrent problem is the sound effects going off completely on almost every map load. The only sounds remaining are those of the buttons on the menus. I don't want to relaunch the game everytime the map has to change, and the sound and music are a very important feature of this game. This happens on every mode and I did not have this problem during beta.
I've tried every solution on this thread, tinkered with all the audio qualities and playback options on windows, to no avail. It's very frustrating and more than a reason for a refund.
My specs:
Operating System
Windows 7 Ultimate 64-bit SP1
CPU
AMD FX-8350
Vishera 32nm Technology
RAM
16,0GB Dual-Channel DDR3
Motherboard
ASUSTeK COMPUTER INC. M5A99X EVO R2.0 (Socket 942)
Graphics
VG248 (1920x1080@144Hz)
4096MB ATI AMD Radeon R9 200 Series (ASUStek Computer Inc)
Storage
931GB Western Digital WDC WD10 EZEX-00KUWA0 SATA Disk Device (SATA)
111GB Radeon R 7 SATA Disk Device (SSD)
149GB Maxtor 6 L160M0 SATA Disk Device (SATA)
Audio
Realtek High Definition Audio