Pulsing sound on KXStudio (Ubuntu 11.04 - 64bit var)

[BC01]

Whenever I start the game the sound is nothing but a cyclic pulsing noise about one or so per second (it sounds a little bit like the warp core sound on startrek when the ship is idling). Everything else seems to work but playing without any sound clues is more difficult than playing normally.

My system OS is Ubuntu 11.04 with the KXStudio modifications which at the basic system level consist mainly of funneling everything sound related through jack audio across bridges like the pulse-jack bridge instead of running separate sound servers directly. My hardware is Nvidia 6100 motherboard and I use the onboard sound chipset. More detailed information (from another online game) (it detects the pulse-jack bridge as regular Pulse audio as it should):

CPU: AMD Athlon™ 64 X2 Dual Core Processor 4200+ (1000 MHz)
Memory: 3961 MB
OS Version: Linux 2.6.38-10-generic #46-Ubuntu SMP Tue Jun 28 15:07:17 UTC 2011 x86_64
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: GeForce GT 240/PCI/SSE2

OpenGL Version: 3.3.0 NVIDIA 270.41.06

libcurl Version: libcurl/7.21.1 OpenSSL/1.0.0d zlib/1.2.5 c-ares/1.7.1
J2C Decoder Version: S21J Runtime: 2.0.6
Audio Driver Version: OpenAL, version 1.1 ALSOFT 1.11.753 / OpenAL Community / OpenAL Soft: PulseAudio Software
Qt Webkit Version: 4.7.1 (version number hard-coded)


Is there a way to feed the sound directly to jack? That seems to work better in many applications than running it across the bridge. Nexiuz classic works flawlessly with sound, was there some kind of major change made to the sound system?