[LAD] JACK on Gigaport HD+ at 4800kHz (reduced channel count)

Clemens Ladisch clemens at ladisch.de
Tue Feb 25 13:23:19 UTC 2014

Jörn Nettingsmeier wrote:
> I'm trying to get my Gigaport HD+ to run at 48000kHz. The specs say it is capable of 8ch @ 44k1/16, 6ch at 44k1/24 and 48k/24.

Please show the output of "lsusb -v" for this device.

> When I try to start it at 48k, it comes up ok but ends up running at 44k1. It shows 8 channels, so that's expected.
> Now, how do I tell it to use only 6, so that I can get to 48k?
> I've tried setting -o6, which gives the usual "cannot set playback channel count".

In theory, any supported combination of parameters should work with Jack.

Does it work with "speaker-test -D hw:3 -c 6 -r 48000"?


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