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I'm currently on Windows, and want to switch to Linux, but some hardware issues are preventing me. Mainly, I have a sound card that supports Line-In. On Windows, anything I plug into the line-in gets outputted to the speakers.

However, when I installed Linux, because there is not a control application that comes with the driver, I have no idea how to set this up. I tried going to the sound settings and it doesn't seem to be there.

I also want to configure it for 2.1 sound, and do not know how to do that...

Anyone here done it before?

Thanks in advance for the help!

quack quixote
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hwrd
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6 Answers6

12

I am not sure which versions of Ubuntu this applies to but I know in 10.04 the loopback module to enable monitoring the line-in is not enabled by default. To enable this function issue this command in the terminal:

pactl load-module module-loopback
Gareth
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Greg
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7

Your sound-card does it. Just open the volume control applet, and move "Line in" channel top the top (you might need to enable the channel configuration slide so it's not hidden).

Also try opening console (gnome terminal), and launch there:

$ alsamixer

You'll get a command-line volume control. Find "Line in" by pressing →, and hold ↑ untill it reaches 100%. Also check the slider's bottom: if "MM" is there then the channel is muted. Hit M key, and it will become enabled.

Cheers!

kolypto
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1

You can also enable Loopback in alasmixer if you keep arrowing to the right, although I am not sure if that change will enable it permanently. Since I imagine other users may have to un-mute and raise the level of Line In (at least in the most current version of Linux Mint these settings are not in the Volume Control/Sound Settings) through alasmixer, it is handy to know you can also enable loopback at the same time.

Bill
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Im not sure if this helps, But i came across this article a little while ago, and while not specific to your problem is about proffesional audio on linux

http://createdigitalmusic.com/2009/08/04/linux-music-workflow-switching-from-mac-os-x-to-ubuntu-with-kim-cascone/

mark
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0

I am not sure which versions of Ubuntu this applies to but I know in 10.04 the loopback module to enable monitoring the line-in is not enabled by default. To enable this function issue this command in the terminal:

pactl load-module module-loopback

Adding this to your ~/.bashrc (or the start script of your choice) makes it persistent after each logout/logon.

Community
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RickB
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On some machines there are line in and mic in connections on the front as well as the back of the case, and they are selectable. When using the colume control applet, you might poke around to see if there is a linein-front that needs to be enabled.

Shannon Nelson
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