dikrek wrote:

Have you tried looking at a spectrum analyzer like voxengo span or the one from Tokyo dawn? Both free.
You need a DAW for all this
Have you tried with a proper external interface?

Currently I only have used the spectrum analyzer "ear" that tells me pretty clearly that mids and heights are missing - but I can do a more quantitative, tool based measurement later today. I am using GigPerformer which is more a live host than a DAW - but I should be able to load plugin based spectrum analyzers there.

Your variables are the playback host (gig), audio interface, and Pianoteq itself.

If you use Pianoteq straight, do you have the problem?

If you use a different host, do you have the problem?

Have you tried looking at a spectrum analyzer like voxengo span or the one from Tokyo dawn? Both free.
You need a DAW for all this
Have you tried with a proper external interface?

Currently I only have used the spectrum analyzer "ear" that tells me pretty clearly that mids and heights are missing - but I can do a more quantitative, tool based measurement later today. I am using GigPerformer which is more a live host than a DAW - but I should be able to load plugin based spectrum analyzers there.

dikrek wrote:

Which version of Pianoteq do you have? Pro and up allow those high sample rates.

Pianoteq Pro 8.3.1

Have you tried looking at a spectrum analyzer like voxengo span or the one from Tokyo dawn? Both free.

Or Bertom's analyzer that shows frequencies?

You need a DAW for all this but GarageBand should be able to do it or you can get the REAPER demo download.

Have you tried with a proper external interface?

Which version of Pianoteq do you have? Pro and up allow those high sample rates.

Pianoteq Pro 8.3.1

When I set GigPerformer and Pianoteq to 96 kHz playback on a Macbook (with the internal sound card) then most mids and highs seem to be lost - it sounds really "muddy". When going back to 44.1 kHz it sounds as expected again. Is that to be expected?

Which version of Pianoteq do you have? Pro and up allow those high sample rates.