Hi guys,
I fooled around with the Synchronized SE Voices and found some weird ringing noices in the Solo sustain patches.
Soprano
F4 - barely notable
A4 - notable
B4 - notable
C5 barely notable
D5 - A5 - annoying
Alto
B3 - barely notable
F4 - barely notable
A4 - notable
B4 - annoying
D5 - A5 - annoying
Tenor
D5 - notable
The sound itself sounds like a broken microphone. I guess those notes are pitched samples.
Can someone confirm this?