Comment 1 for bug 1859916

First thing to check is whether you have any other audio applications installed, since there seems to be a long running issue whereby other applications can prevent QEMU from being able to output audio. See https://www.emaculation.com/forum/viewtopic.php?f=34&t=8848&sid=1e5fab3a08347beb3b344be0f953221e&start=150#p60978 for a discussion on this.

Secondly does QEMU 4.1 audio work? There has been a report on list that there is an issue caused by conversion to the new backend audio APIs in 4.2 here: https://lists.gnu.org/archive/html/qemu-devel/2020-01/msg02142.html.