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 Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. 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 -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
