Acceptable voltage levels in Line-In and Mic inputs

"Rafael E. Herrera" <[email protected]>
Newsgroups gmane.linux.suse.multimedia
Message-ID <[email protected]>
Hello,

What are acceptable voltage levels, max an min, for the audio inputs of a typical
sound card.

I'd also like to know what kind of protection a sound card may have for
overloading.

Thanks.
-- 
   Rafael
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