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Rewire problem
Apr 5 2004
17:08
illuminatus
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Heya, i got a problem using vocaloid’s rewire output. It doesn’t sync. When i play back the tracks using rewire as output, it plays a little bit too fast, resulting in a higher pitch (1 halftone) and higher speed as well.

Anyone got a solution for this?

P.S.: The playback position in the track is correct, just the audible output is wrong.

Apr 5 2004
18:52
administrator
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Not sure. Are both programs are running at the same sample rate (eg. 44.1Khz)?

Apr 5 2004
19:44
illuminatus
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Yes sir. I changed frequencies from 48k to 44.1k, with no change in the problem… :(

Apr 5 2004
21:03
gray
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Im not understanding how rewire could change the pitch. Rewire just plays the midi vocaloid file. Speed shouldnt affect pitch in that file. Hmmm Have you checked your pitch bend in vocaloid?? Really strange thing youve come up with.

Apr 5 2004
21:37
illuminatus
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[quote="gray":13fxux56]Im not understanding how rewire could change the pitch. Rewire just plays the midi vocaloid file. Speed shouldnt affect pitch in that file. Hmmm Have you checked your pitch bend in vocaloid?? Really strange thing youve come up with.[/quote:13fxux56]

Yip, nothing changed there.

I fire up Live3, then Reason, then Vocaloid. I load my appropriate workfiles, then i hit the play button. When i’ve set “Rewire” as Vocaloid-Output, it get the pitch problem, when i set it back to normal Audio, it works as supposed.

Dont know what’s going wrong there, but i’m gonna do some more investigation over this week.

Apr 5 2004
23:38
vince66
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I’ve had the same thing using reason, cubase and Lola.
The bar positions appear to be right, but Lola doesn’t sing in the right places, almost like having a real singer.
I thought it might be the sample rates, but changing them didn’t make any difference.

Apr 6 2004
05:29
gray
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I havent gotten rewire to work but one time. Hasnt worked since, and I’ve tried it on 2 different softwares programs. I think maybe rewire has a few bugs to iron out too.

Apr 7 2004
04:23
timwill
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I would be suprised if ReWire was @ fault. It is more likely to be a certain co based in Japan that has a history (& perhaps a hidden agenda) of falling at the last fence when it comes to music related software products – although their motorcycles and pianoz are good.

OK I couldn’t do it myself, but then I’m not pretending to have it sorted and taking your money for a half-baked app like Vocaloid.

timwill

Apr 7 2004
22:23
rickpaul
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I’ve been using LOLA with SONAR 3.1.1 via ReWire with no problems in pitch or speed being off that I can tell. This is over the duration of a 3-4 minute song with lots of softsynths, plus a real audio vocal track, on the SONAR side.

Two quick things that come to mind on the original question:

1) Are tempos identical on the DAW and Vocaloid sides? Especially, if there is a tempo map in the DAW, did you make sure any tempo changes are also there, and in the same places, on the Vocaloid Editor side? (I initially created the MIDI for my Vocaloid part in SONAR, then exported to a Type 1 MIDI file, and read that into Vocaloid to start the LOLA side of things. Hopefully that did the trick, though I only have tempo changes near the end, so maybe I wouldn’t even notice it much if they didn’t get included.) I wouldn’t think this one would actually make the pitch off, just the synchronization.

2) Assuming you have the output of Vocaloid feeding a ReWire input on your DAW, is the DAW expecting the same sample rate as Vocaloid is using? I could imagine a 44.1kHz versus 48kHz issue could give a problem similar to the one you are describing.

Good luck.

Rick

Apr 8 2004
15:32
robotarchie
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rickpaul : Might the problem be the infamous 48k internal sampling rate of the Creative/EMU chip? Are you using one of those soundcards? As far as I can remember, whatever sampling rate you set it at, the internal chip will automatically convert everything to 48K for internal mixing. Just a thought….

Apr 8 2004
15:46
rickpaul
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Regarding the EMU 48k thing, if the person who posted the original problem has an SBLive or similar, perhaps that is a possibility. On the other hand, I’d think any SBLive issues would be handled between the DAW and the sound card when working in ReWire mode, and that the Vocaloid software would just feed audio to the DAW based on how it and the DAW were configured. (Perhaps if some of the Vocaloid tech people are watching this thread they may be able to confirm that side of things?)

FWIW, I am using an MOTU 2408 mkII, but, then again, I’m not seeing a problem in this area.

Rick

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