April 13, 2026
10:57 p.m.
The docs for [KSAUDIO_CHANNEL_CONFIG](https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/ksmedia/ns-ks...) say that "The KSAUDIO_SPEAKER_7POINT1 speaker configuration, is obsolete and no longer supported". [Another page](https://learn.microsoft.com/en-us/windows-hardware/drivers/audio/header-file...) also mentions that "In Windows Vista and later versions of Windows, the KSAUDIO_SPEAKER_7POINT1 speaker configuration is no longer supported. As a result, it is not an available option in Control Panel." -- https://gitlab.winehq.org/wine/wine/-/merge_requests/10655#note_136017