Javier García wrote:
Sorry, what do you mean with "alsaconf"?
http://www.linuxmanpages.com/man8/alsaconf.8.php
"Alsaconf is a simple shell script which tries to detect the sound cards on your system and writes a suitable configuration file for ALSA. It will try to guess what GNU/Linux distribution you're running, and will act accordingly to the standards of that distribution, if specific support is available.
Alsaconf will write a modutils snippet which can be then used by modutils to load the correct parameters for your sound card. "
It's very useful as long as you have one soundcard. I recommend to start here.
It sounds to me like you're still struggling with the basics of ALSA. You might read some of the ALSA and Linux Sound documentation listed under "Documentation" and "Installation" here:
http://alsa.opensrc.org/Main_Page
d.