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[benn600]

I understand frequencies and such that around 28 Hz is a very low bass sound and that 10,000 Hz is a high sound.  I am confused, in general, about this DSP item called Output Format.  I have heard about these items a lot but would like a little bit of explanation.

Bitdepth--no idea about this other than a bit is a 0 or 1, so 32-bit would be 32 bits at a time?

I understand the speaker number setup but am curious about what kind of output it would send to my surround speakers?  For example, my Audigy2 has its own "interpolation" mode that makes up some surround for the surround when there is none present.  I used to run in stereo x 2 until I got my new sound card that actually does a decent job with surround effects.

Sample rate?  Up to 192,000 Hz?  Does this just refer to the top frequency contained in the signal?  I thought humans could only hear so high--and it wasn't even close to 192,000 Hz.  Also, are speakers even capable of producing a sound that high?  Not sure if this is because my computer is working on other things but when I set the sample rate to the highest, the audio breaks up.

[zirum]

Y'know, wikipedia is a good way starting off with these things, benn

Bit depth is number of bits used to describe a signal.

Sample rate, just taste the word a bit...
Sample: a bit of a signal
Rate: how much is something done.

Sample rate: how often it overuns the signal to reconstruct it. Should be at least the double of bandwidth, in order to be able to reconstruct accordinly (0-20.000hz, thats the human ear range aprox.) so sample should be at least 40.000hz. The more the merrier
http://en.wikipedia.org/wiki/Sample_rate

I am no wiz in these things, and may have some/most wrong