It seems to me that the issue with low level and poor sound quality is because the third speaker of MacBooks aren't used. This is reported in this alsa-bug: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4086
-- Hardy: sound level low, poor quality on Macbook Pro https://bugs.launchpad.net/bugs/234165 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs