My other question would have been whether this effect had actually started with Yosemite. So it seems PTQ 5.1 on Yosemite is your first Pianoteq version at all, which would have been a valuable info as well. It is usually a good advice not to start with a foregone conclusion (i.e., "problem is OS-related"). Such a conclusion is only warranted if there is reason for it (i.e., worked before and now it doesn't).
To your question: if the 'missing' treble dampers startled you, I guess you never played either on a real acoustic piano or on a decent electronic instrument. I feel I should mention there are several resonance effects modelled by Pianoteq that might sound like a 'defect' if one is completely new to piano playing.
For example, if you play a note alone, only its damper is lifted. If you push the pedal, all dampers are lifted, which makes the same note's sound distinctly different, since all the strings resonate slightly. Then there's sympathetic string resonance: if you push a key 'silently' and play notes that are e.g. a forth, a fifth or an octave above, you will hear a slight noise coming from the virtual 'strings' of the silent note that vanishes only after you release that key.
These are all effects that a real piano produces and they are part of the reason especially sampled software pianos (used to) sound rather 'sterile' to the experienced ear.
Last edited by kalessin (26-10-2014 14:44)
Pianoteq 6 Standard (Steinway D&B, Grotrian, Petrof, Steingraeber, Bechstein, Blüthner, K2, YC5, U4, Kremsegg 1&2, Karsten, Electric, Hohner)