This topic is quite interesting, i saw a lot links on the web and a lot more boards with people asking how to do that. Let’s look a bit more into this topic, let me show some way to do that and let me first answer some questions:

- Q: Is it possible to create real 5.1 (6 channels) sound out of a Stereo (2 channels) file?
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or… how to tune your Alsa Stuff. Recently i had some trouble getting two apps working at the same time within Linux. The Problem can be solved using available Alsa-Sharing Howtos. A few days later i played around with the Equalizer of Audacious and realized that the music sounds a lot nicer with a “rock” preset within audacious. The thing is… This new sound “effect”/”settings” apply only for Audacious – But i want them for the whole System. So what? Let’s look how to improve Sound using Alsa. If you use ladspa, there’s a equalizer which we could use. The problem with it is, it got 15 bands, my player got only 10. That means i have to refine the settings. Lets put it together in a table:
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I know that there are already a lot of documents out, but none of these really helped me. If you want to run Teamspeak and Quake3 or other things at the same time you need “Alsasharing” for some people it’s as simple as just using aoss or a soundserver. For others like me it’s more problematic. Starting Teamspeak normally works – Microphone and Speakers are working. If i start then the game – I don’t have sound ingame. If i start Teamspeak with aoss, it’s the same. What happened? Well: Teamspeak was using the microphone and the speakers and thus blocked the sound device for other applications.
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