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Thread: Microphone quiet in Skype; Alsa mixer hisses all the time

  1. #1
    Join Date
    Apr 2013
    Beans
    10

    Microphone quiet in Skype; Alsa mixer hisses all the time

    Since I re-installed Lubuntu (up to date version) on my Samsung N220 netbook recently, the microphone volume on Skye is very, very low. In a test call I can hardly hear my own voice. This is true whether or not I set Skype to "let Skype control mixer." The speaker volume is OK, I can hear the other person fine, but they can't hear me at all.

    All sound devices inside Skype are set to "default". The Skype drop-down offers 10 or 12 microphone options, all different names for the one and only onboard mic, far too many to test them all.

    So, I tried to install a mixer. I tried pavucontrol and xfce4-mixer. These do not run at all, they fail on startup.

    Alsamixer appears to install OK. Two of the mic settings were set to zero and I corrected this, but still no sound in Skype, if anything it is worse. And, there is now a constant hiss from the speaker, apparently due to the mic having a constant "presence". So, several questions:

    (1) How do I get control of the microphone volume in Skype?

    (2) What is the best mixer to use?

    (3) If alsamixer is the best mixer, how do I stop the background hiss?

    Many thanks

    Andy

  2. #2
    Join Date
    Mar 2008
    Beans
    88
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Microphone quiet in Skype; Alsa mixer hisses all the time

    The hiss is usually too much mic boost. Have you turned up the capture setting via [F4] or [F5] in alsamixer?
    Also recheck the all the settings in alsamixer [MM] means mute.

    gl
    Your first step, learn the command line man intro man man man bash

  3. #3
    Join Date
    Apr 2013
    Beans
    10

    Re: Microphone quiet in Skype; Alsa mixer hisses all the time

    Thank your for this reply - the problem fixed itself! I'm not sure how, the hiss is indeed the boost. But why the Skype came back I have no idea. I'd thought I'd explored everything I could in Alsamixer before posting, maybe there was something I hit on later, or maybe it was to do with re-booting the system after installing Alsamixer, which I hadn't done at post time. On of life's mysteries.

    Cheers

    Andy

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