On 10/29/2015 02:16 PM, Klaus Löhmann wrote:
> Hello,
>
> first post here, so i don't know if i do everything like expected.
> When i open hdspmixer @ 96k, the output routing is strange:
> 1st channel doesn't output, channel 2 outputs on out1,
> CH 3 doesn't output, CH 4 outputs on out 2 ...and so on.
Yes this should be correct. ADAT optical does only support up to 48KHz
per channel, thus the card switches on 96KHz into double speed mode,
which means, that the data for a single channel is transmitted over two
channels. This means that the channel count is cut to half.
> I opened a topic on the RME-Linux-Forum a while ago:
> https://www.forum.rme-audio.de/viewtopic.php?id=17373
>
> While regarding the sources, i realized (i am at no means a
> coder/dev/whatever, so...)
> that in the hdspmixer the channelmap is missing for the HDSP9652, but
> for the other cards (Digiface, Multiface, RPM...) Channelmpas are specified.
Maybe you are using an old version? I found a matching mapping right
here for alsa-tools version 1.0.29 :
https://fossies.org/dox/alsa-tools-1.0.29/channelmap_8cxx_source.html#l00099
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