Looks like something skype is doing (very brief 495 Hz and 630Hz tone bursts). Sorry, cannot help. On Fri, 16 Aug 2013, giampaolo ferradini wrote: > It is a pretty annoying electric noise. No other audio is running together. > > I enclosed an AMR file if you want to have an idea of the sound, you will > hear it at 1:00. > Sorry if I could not convert it to MP3 or other formats, but instructions > in Audacity for installing the proper codec seem to be outdated and I am un > ungifted noob... > > Kind regards, > Giampaolo > > -- > giampaolo ferradini > > h: +39 02 3653 9625 > m: +39 335 677 0885 > sk: giampaolo_f > http://www.facebook.com/giampaolo.ferradini<https://www.facebook.com/giampaolo.ferradini> > > > On Fri, Aug 16, 2013 at 2:16 PM, Bill Unruh <unruh@xxxxxxxxxxxxxx> wrote: > >> On Fri, 16 Aug 2013, giampaolo ferradini wrote: >> >> *this message was bounced because I did not confirm my subscription, >>> please >>> disregard if a duplicate * >>> >>> Hi All, >>> >>> I was wondering if you guys could help with a scratching audio in my sound >>> card. >>> >> >> Scratching in your audio? What does that mean? You have ome sound ( music) >> running and you turn on skype without turning off the music and thus try to >> have bothusing the sound system? The problem is probably pulse audio and/or >> skype , and probably has nothing to do with alsa or your soundcard. >> >> >> >>> It appears when I receive Skype notifications, and for a few instants when >>> I start a new call, then stabilizes and disappears for the remaining of >>> the >>> call, only to reappear when it ends. >>> So far I did not notice it with other applications. >>> >>> The phenomenon appeared in both installations that I tried, i.e. Ubuntu >>> 13.04 and Fedora 19, which I am currently using. >>> >>> The output of lspci is this one: >>> 07:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cape >>> Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series] >>> >>> (In Ubuntu the output was somewhat different: 00:14.2 Audio device: >>> Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) (rev 40) But >>> I have been told I should not be surprised by it) >>> >>> Thanks a lot for the look you are taking :-) and for any suggestion, >>> >> > -- William G. Unruh | Canadian Institute for| Tel: +1(604)822-3273 Physics&Astronomy | Advanced Research | Fax: +1(604)822-5324 UBC, Vancouver,BC | Program in Cosmology | unruh@xxxxxxxxxxxxxx Canada V6T 1Z1 | and Gravity | www.theory.physics.ubc.ca/ ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite! It's a free troubleshooting tool designed for production. Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
