Acknowledgement
🐛 Describe the bug
When pulling a 48 kHz audio into Openutau, and use “Add tempo change" multiple times (common when using acoustic backing tracks), the audio playback timing and display may not be stable. This caused the exported audio (usually 44.1 kHz sample rate for most UTAU and Diffsinger voicebanks) to not match with the backing track. However, if we first transform the backing track to 44.1 kHz using any audio software, the timing issue does not happen.
image attached: Same audio file, upper track is 48 kHz, lower is 44.1 kHz (transformed using Adobe Audition). We can clearly see that the waveform doesn't match.
Explains how to reproduce the bug
Voicebank used is a Diffsinger voicebank with 44.1 kHz sample rate. ustx and corresponding backing track cannot be attached; will be provided upon request.
OS & Version
Windows 11
Logs
log20260713.txt
Acknowledgement
🐛 Describe the bug
When pulling a 48 kHz audio into Openutau, and use “Add tempo change" multiple times (common when using acoustic backing tracks), the audio playback timing and display may not be stable. This caused the exported audio (usually 44.1 kHz sample rate for most UTAU and Diffsinger voicebanks) to not match with the backing track. However, if we first transform the backing track to 44.1 kHz using any audio software, the timing issue does not happen.
image attached: Same audio file, upper track is 48 kHz, lower is 44.1 kHz (transformed using Adobe Audition). We can clearly see that the waveform doesn't match.
Explains how to reproduce the bug
Voicebank used is a Diffsinger voicebank with 44.1 kHz sample rate. ustx and corresponding backing track cannot be attached; will be provided upon request.
OS & Version
Windows 11
Logs
log20260713.txt