Felipe, I set "Element mic boost" "volume" to "zero" instead of "0" and it works : I can increase the input volume level up to 153%.
The link resulting from alsa-info.sh script : http://www.alsa-project.org/db/?f=047c2acc0b69c594d762f220e8f551f0af0d2a08 Thank for your help. Jean ----- Mail original ----- De: "Felipe Sateler" <fsate...@debian.org> À: "Jean Bernon" <jber...@free.fr> Cc: 766...@bugs.debian.org Envoyé: Mercredi 12 Novembre 2014 14:24:17 Objet: Re: Bug#766781: pavucontrol: Input volume cannot be more than 39% Control: reassign -1 linux-image-3.16.0-4-amd64 Control: retitle -1 Mic boost control introduces distortion On Wed, Nov 12, 2014 at 6:32 AM, <jber...@free.fr> wrote: > Hi Felipe, > > My kernel has been updated since the first mail I sent. > root@pc-jean-debian:/home/jean# uname -a > Linux pc-jean-debian 3.16-3-amd64 #1 SMP Debian 3.16.5-1 (2014-10-10) x86_64 > GNU/Linux > > The volume issue remains. OK, we can report this as a kernel bug then. > > "Element Front Mic Boost" "volume" is already "off". I tried to set "Element > Mic Boost" "volume" from "merge" to "0". But it muted everything. Did you try setting zero instead of 0 (that is, putting the word 'zero', not the number)? That is what i saw elsewhere as a workaround for this. Also try setting it to 'off' and 'ignore'. Note that these are workarounds, so hopefully this can be fixed in the kernel. Dear kernel maintainers, I'm forwarding this bug to you: Jean reports that when the Mic Boost control is set to a value > 0, it introduces distortions. Jean, please run the alsa-info.sh script as documented here[1]. The kernel maintainers will probably need this. [1] https://wiki.ubuntu.com/Audio/AlsaInfo -- Saludos, Felipe Sateler
