Clemens, thanks for fast responce. Already mute all input beside line in but noise is still present. Tested with various ports and hubs - the same sh.t. The only one thing helps - cable with noise reduction. I just want to figure out - is it hardware issue, or software? On Tue, Feb 21, 2012 at 4:00 PM, Clemens Ladisch <cladisch@xxxxxxxxxxxxxx> wrote: > Anton Komarov wrote: >> I am trying to record audio from this card. Arecord works great but >> there is one small problem. >> >> When i am starting arecord low noise appears on the background. > > Of the input or of the output? > > Anyway, try disabling mixer controls for any unused inputs. If the > noise is caused by electrical noise on the USB power line, try with or > without a hub, or at a different USB port. > > There's nothing that software can do about this. > > > Regards, > Clemens ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user