Ubuntu
alsa-driver package

Crackling/Static and very low mic audio levels with sound recorder and skype v.4.1.0.20

Asked by Dave Burgess

- Hardware is good as I have Windows 7 and Ubuntu 12.04. installed on separate partitions and no problems with Windows.
- Listening to Skype or other streaming or sources is good audio.
- Have been following the trouble shooting guide at https://help.ubuntu.com/community/SoundTroubleshootingProcedure
- Am at Step 3 where I am asked to upload the following terminal output:

daveburgess@ubuntu:~$ wget -O alsa-info.sh http://www.alsa-project.org/alsa-info.sh && chmod +x ./alsa-info.sh && ./alsa-info.sh
--2013-05-10 22:42:12-- http://www.alsa-project.org/alsa-info.sh
Resolving www.alsa-project.org (www.alsa-project.org)... 77.48.224.243
Connecting to www.alsa-project.org (www.alsa-project.org)|77.48.224.243|:80... connected.
HTTP request sent, awaiting response... 302 Found
Location: http://git.alsa-project.org/?p=alsa-driver.git;a=blob_plain;hb=refs/heads/build;f=alsa/utils/alsa-info.sh [following]
--2013-05-10 22:42:13-- http://git.alsa-project.org/?p=alsa-driver.git;a=blob_plain;hb=refs/heads/build;f=alsa/utils/alsa-info.sh
Resolving git.alsa-project.org (git.alsa-project.org)... 77.48.224.243
Connecting to git.alsa-project.org (git.alsa-project.org)|77.48.224.243|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/x-sh]
Saving to: `alsa-info.sh'

     0 --.-K/s 21,210 99.5K/s 27,785 126K/s in 0.2s

2013-05-10 22:42:14 (126 KB/s) - `alsa-info.sh' saved [27785]

ALSA Information Script v 0.4.61
--------------------------------

This script visits the following commands/files to collect diagnostic
information about your ALSA installation and sound related hardware.

  dmesg
  lspci
  lsmod
  aplay
  amixer
  alsactl
  /proc/asound/
  /sys/class/sound/
  ~/.asoundrc (etc.)

See './alsa-info.sh --help' for command line options.

Automatically upload ALSA information to www.alsa-project.org? [y/N] : y
Uploading information to www.alsa-project.org ... Done!

Your ALSA information is located at http://www.alsa-project.org/db/?f=cc25a7c802dd3915aae320229334f3c72d833638

Hope you can help me.

Dave.

Question information

Language:
English Edit question
Status:
Answered
For:
Ubuntu alsa-driver Edit question
Assignee:
No assignee Edit question
Last query:
Last reply:
Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#1

If you run :

alsamixer

IN terminal is the mic unmuted and maxed? If you press F6 is the right device selected for sound. Also repeat the same in the "sound" application in Dash.

If they all look ok, run:

killall pulseaudio; rm -r ~/.pulse*

Wait 10 seconds and then reboot.

Thanks

Revision history for this message
Dave Burgess (burgessdave00) said : 		#2

Hi

I found that the mic level was zero, I readjusted level to max and
restarted per instruction. Skype was changing the level to zero. Have
unchecked the "Allow Skype to automatically adjust my mixer levels".
 Readjusted the mic level to max and is same for both Sound Recorder and
Skype, ran the killall command described below. Then restarted after
waiting 10 seconds. After restart, Mic volume on test recording is up but
very crackly. Have attached sound recording. Next steps?

Really appreciate your time on this.

Dave.

On Friday, May 10, 2013, actionparsnip wrote:

> Your question #228641 on alsa-driver in Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+source/alsa-driver/+question/228641
>
> Status: Open => Answered
>
> actionparsnip proposed the following answer:
> If you run :
>
> alsamixer
>
> IN terminal is the mic unmuted and maxed? If you press F6 is the right
> device selected for sound. Also repeat the same in the "sound"
> application in Dash.
>
> If they all look ok, run:
>
> killall pulseaudio; rm -r ~/.pulse*
>
> Wait 10 seconds and then reboot.
>
> Thanks
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
>
> https://answers.launchpad.net/ubuntu/+source/alsa-driver/+question/228641/+confirm?answer_id=0
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/ubuntu/+source/alsa-driver/+question/228641
>
> You received this question notification because you asked the question.
>

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#3

If you comment out the model=acer line you have added to your alsa-base.conf and reboot, is it ok? You can always uncomment it to roll back

Can you help with this problem?

Provide an answer of your own, or ask Dave Burgess for more information if necessary.

To post a message you must log in.