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MilkyTracker Support / 44100 vs 48000 Hz export length inconsistency
« on: October 13, 2015, 12:18:00 »
Hey
I have used MilkyTracker for many years - and FastTracker II before that (starting 1997!)
I have always exported as 44.1 kHz but recently I tried 48 kHz.
Unfortunately I have found out that these exports are longer (and slower) than if I export at 44.1 kHz.
This is a problem as I have vocals and sound effects (not in XM) at 44.1 kHz that I mix in. Suddenly they are out of sync.
I first noticed this when I did a screen capture video of MilkyTracker running and tried to overlay a 48 kHz audio minimix - the lengths didn't fit, and I had to shrink the minimix by 0.230 % (in Audacity).
These are my findings (lengths as M:SS:HHH):
- screen capture of playback (at both 48000 and 44100 Hz): 5:13:700 (approximately).
- export at 44100 Hz: 5:13:725.
- export at 48000 Hz: 5:14:432.
---
I have verified this on two laptops:
Windows:
- Software: MilkyTracker v0.90.86 (the latest official).
- OS: Windows 10 64bit.
- Machine: Acer Pavilion DV6, AMD processor (details unknown).
- Audio Card: AMD High Definition Audio Device (details unknown).
Linux:
- Software: MilkyTracker git commit a3ae038ac7d46a1d06834e794f00f0d3480ec24c.
- OS: Linux Mint 17.2 Cinnamon 64bit.
- Machine: An ancient Thinkpad t61, Core2 duo.
- Audio Card: Intel Corporation 82801H (ICH8 Family) HD Audio).
(As far as I can tell the issue hasn't been addressed since this git commit - I haven't tried building a newer).
// Lasse
I have used MilkyTracker for many years - and FastTracker II before that (starting 1997!)
I have always exported as 44.1 kHz but recently I tried 48 kHz.
Unfortunately I have found out that these exports are longer (and slower) than if I export at 44.1 kHz.
This is a problem as I have vocals and sound effects (not in XM) at 44.1 kHz that I mix in. Suddenly they are out of sync.
I first noticed this when I did a screen capture video of MilkyTracker running and tried to overlay a 48 kHz audio minimix - the lengths didn't fit, and I had to shrink the minimix by 0.230 % (in Audacity).
These are my findings (lengths as M:SS:HHH):
- screen capture of playback (at both 48000 and 44100 Hz): 5:13:700 (approximately).
- export at 44100 Hz: 5:13:725.
- export at 48000 Hz: 5:14:432.
---
I have verified this on two laptops:
Windows:
- Software: MilkyTracker v0.90.86 (the latest official).
- OS: Windows 10 64bit.
- Machine: Acer Pavilion DV6, AMD processor (details unknown).
- Audio Card: AMD High Definition Audio Device (details unknown).
Linux:
- Software: MilkyTracker git commit a3ae038ac7d46a1d06834e794f00f0d3480ec24c.
- OS: Linux Mint 17.2 Cinnamon 64bit.
- Machine: An ancient Thinkpad t61, Core2 duo.
- Audio Card: Intel Corporation 82801H (ICH8 Family) HD Audio).
(As far as I can tell the issue hasn't been addressed since this git commit - I haven't tried building a newer).
// Lasse