On Sat, Jul 1, 2017 at 1:11 AM, Esokrates <esokrark...@gmail.com> wrote: > Kai: I do not understand your last comment, could you elaborate? Did you > mean we should test if software boost = pulseaudio boost performs well > enough?
Yes. > Kai, I am quite happy with > http://people.canonical.com/~khfeng/lp1654448-2/ please link me the > patch as the only drawback would be the lower volume, right? :-). Traditional microphone will lose hardware mic boost. That said, software boost for mic should good enough. > I will try to test the pulseaudio boost in the next days. Could you > explain a bit of theory? What would you expect in terms of quality > regarding the pulseaudio boost? Is there something special I should > consider? What would be a good way to test for disortion? There's no objective measurement. Use your own ear - if you think the quality is good, then the quality is good. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1654448 > > Title: > XPS 13 9360 and 9350, Realtek ALC3246, Headphone audio hiss > > Status in Dell Sputnik: > Confirmed > Status in alsa-driver package in Ubuntu: > Confirmed > Status in linux package in Ubuntu: > In Progress > Status in pulseaudio package in Ubuntu: > Confirmed > > Bug description: > Pertaining to 16.04 on a dell XPS 13 9360 > > ii alsa-base 1.0.25+dfsg-0ubuntu5 > > Advanced Linux Sound Architecture Driver Version k4.4.0-57-generic. > > > When headphones are plugged in, there is a clearly audible hiss (white > noise). This is present as soon as the headphones are plugged in, whether > 'headphones' or 'headset' are selected from the pop-up box. > > Using alsamixer to debug the issue reveals that it is related to > "Headphone Mic Boost" - the default setting is: dB gain 0.00, 0.00. If > this is changed to: > > 10.00, 10.00 (one notch up) the hiss disappears. > 20.00, 20.00 cause a louder hiss and > 30.00, 30.00 causes an even louder hiss with high frequency audio artifacts. > > When the headphones are removed and plugged back in the Headphone Mic > Boost setting returns to dB gain 0 and the problem also returns. > > This (problem and workaround) has been reported in the wild: > https://news.ycombinator.com/item?id=13050843 and > > https://www.reddit.com/r/Dell/comments/4j1zz4/headphones_have_static_noise_with_ubuntu_1604_on/ > for example > > To manage notifications about this bug go to: > https://bugs.launchpad.net/dell-sputnik/+bug/1654448/+subscriptions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1654448 Title: XPS 13 9360 and 9350, Realtek ALC3246, Headphone audio hiss To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1654448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
