Re: Scratches in my audio

[giampaolo ferradini <giampaolo.ferradini@xxxxxxxxx>]

Thanks for taking a look, then....

Cheers

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giampaolo ferradini

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On Fri, Aug 16, 2013 at 4:55 PM, Bill Unruh <unruh@xxxxxxxxxxxxxx> wrote:

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in Audacity for installing the proper codec seem to be outdated and I am un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/

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