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1

MilkyTracker Support / Re: 44100 vs 48000 Hz export length inconsistency

« on: October 13, 2015, 15:46:27 »

OK - got it now.
My linux sound card was set at 44100 Hz; I can see how that would force Milky to adopt same freq. Unfortunately didn't test the screen capture on Windows, in which case I would probably have figured this out myself.

Thanks a lot :-D


(Btw: About swapping files - been there, done that! But not this time :-P )

2

MilkyTracker Support / Re: 44100 vs 48000 Hz export length inconsistency

« on: October 13, 2015, 14:25:20 »

Saga Musix - I'm not sure I was clear there.
What I don't get is this: When I screen capture the playback of my song, it is the same length as the exported 44.1 kHz WAVs (within uncertainty of 100 ms or less).
And that goes for both 44.1 and 48 kHz playback.

The difference between the exported 44.1 and 48 kHz WAVs on the other hand is roughly 700 ms.



Is *this* a bug??

3

MilkyTracker Support / Re: 44100 vs 48000 Hz export length inconsistency

« on: October 13, 2015, 13:42:42 »

Thanks Saga Musix; that makes sense.
Sort of.

But why then is the playback at 48000 the "correct" (expected by me) length??

// Lasse

4

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