这个游戏安装Blue Ripple Sound和openal
改变系统音效啦有谁知道这两个软件卸载后，这个游戏有影响吗？
游戏在自己的程序里面应用音效好不好，为啥要搞OS的声音？ There are three audio driver options. The "software" and "hardware" options are those available in the original DiRT for PC. Software uses the 'generic software' mixer from Creative Labs. This works on any DirectSound-compatible audio device, in stereo or 5.1 channel surround. It is fast but of limited fidelity; it has only limited EAX environmental effects. The "hardware" option works with X-Fi cards that support 100+ sounds, high quality reverb, mixing and sample rate conversion (e.g. X-Fi Xtreme Music, Auzentech X-Fi Prelude, Fatal1ty and the Titanium series of X-Fi cards). Results are hardware and driver-dependent, but may benefit PCs with a good sound card but limited CPU power for software audio. These are legacy options - they've been well-tested on dozens of games over more than a decade (dating back to Colin McRae Rally 4) but they are no longer the default.
DiRT 2 introduces the new Rapture3D OpenAL driver from Blue Ripple Sound. On a slow PC, this matches the quality of the old 'generic software' driver, but on a fast system (such as a modern Quad core PC) it can deliver performance equal or superior to that of the best hardware acceleration. Rapture3D tests your CPU performance and auto-configures to suit. The two 'Quality' options in the Rapture3D tab of the Rapture3D Speaker Layout application, installed with the game, allow you to give more or less CPU time for sound. The latency (delay between game action and hearing the result) can also be tailored by adjusting the Default Buffer settings. Increase these if you hear stuttering of the entire audio mix; decrease them to make the audio respond more quickly to the controls. This only has an effect when Rapture3D is selected in the game audio menu.
注意到This only has an effect when Rapture3D is selected in the game audio menu. 那就是说不影响系统音效的啊
但是打战争机器还是影响了啊，怎么回事？
阿凡达demo没声音啊，和这个有关系吗？[
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