This is from a report over on Reason. The behavior was confirmed on Ableton, so the Reason devs asked me to ping NI with the report.
From the original Reason report:
M1
Ventura 13.0.1
Steps:
Open attached .reason file
In the file, the audio is coming from a Kontakt 7 containing a PlayBox
Export Loop As Audio File
Choose Audio AIFF File
In Audio Export Settings Dialog choose:
Sample Rate: 96,000 Hz
Bit Depth: 24
Click on Export Button.
Repeat steps but this time
Sample Rate: 48,000 Hz
Bit Depth: 24
Results:
In the 96,000 Hz .aif file, the first bar or so will sound pitched down compared to playback within Reason. Afterward a bar or so, it will sound as expected.
In comparison, the 48,000Hz .aif file, the audio matches the audio playback with in Reason.
Attached:
pitch03122023.reason Sample .reason file
pitch0312202396.aif exported aif @ 96,000Hz, 24. Just the first bar to keep upload size down. Note that the audio sounds pitched down.
pitch0312202348.aif exported aif @ 48,000Hz, 24. also just the first bar. Audio sounds as expected.
At one point I got an Alert Dialog: "Kontakt 7 Please close and restart Kontakt after a sample rate change!"
I am not certain how to restart Kontakt, other than closing the VST window in the Rack and reopening it and/or Quitting Reason and relaunching it. I looked around in the settings, etc. but it is still not clear if there is another way to 'restart' Kontakt 7. After all the things I tried, I still got the same pitch results on export loop to 96,000Hz, 24. Perhaps I am missing something: any clarification would be appreciated.
