Normally when I'm playing Dota 2, sound effects work fine. Sometimes in team fights, with lots of sound effects, they suddenly go quiet, almost no sound effects, but they will return. I'm using alsa-audio and not pulseaudio. This doesn't happen in Dota 2 Windows because I dual-boot and I have played both.

Processor Information:
Vendor: AuthenticAMD
CPU Family: 0x15
CPU Model: 0x2
CPU Stepping: 0x0
CPU Type: 0x0
Speed: 3800 Mhz
4 logical processors
4 physical processors
HyperThreading: Unsupported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Supported
SSE41: Supported
SSE42: Supported

Network Information:
Network Speed:

Operating System Version:
Debian GNU/Linux unstable (sid) (64 bit)
Kernel Name: Linux
Kernel Version: 3.13-1-amd64
X Server Vendor: The X.Org Foundation
X Server Release: 11501000
X Window Manager: Openbox
Steam Runtime Version: steam-runtime-release_2014-04-15

Video Card:
Driver: ATI Technologies Inc. AMD Radeon R9 200 Series

Driver Version:  4.4.12874 Compatibility Profile Context 13.35.1005
OpenGL Version: 4.4
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 60 Hz
VendorID:  0x1002
DeviceID:  0x6810
Number of Monitors:  1
Number of Logical Video Cards:  1
Primary Display Resolution:  1600 x 900
Desktop Resolution: 1600 x 900
Primary Display Size: 17.01" x 9.45"  (19.45" diag)
                                        43.2cm x 24.0cm  (49.4cm diag)
Primary VRAM Not Detected

Sound card:
Audio device: VIA VT2020

Memory:
RAM: 7971 Mb

Miscellaneous:
UI Language: English
LANG: en_US.UTF-8
Microphone: Not set
Total Hard Disk Space Available: 193246 Mb
Largest Free Hard Disk Block: 72682 Mb

Installed software:

Recent Failure Reports: