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AU pitch shift woes
So I used the au pitch filter to marry 2 pieces of music together. One was not in the right key. Worked great. Days later I’m trying to output the video, but I get all kinds of digital noise on that piece of music. Gotta output. Very lame. I thought we left little junk like this behind with QT?
Any ideas? I’ve tried exporting different codecs, adding other audio stuff to mix in, but nothing works.
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10 Replies
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Trash render files and peaks data.
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Good ideas. But no luck. Renders fine in the app. But I assume it doesn’t actually render, as there is no mixdown audio feature like in legacy. Only on export do I get the noise. It’s like a digital buzzer. Just an error in the algorithm I suppose.
In soundtrack pro I applied the same filter and got the same result. Guess what worked best? I applied the same filter in FCP 7 and exported. Still got lots of cracks and pops but no buzzer. Took that result into soundtrack and cleaned up the pops. Works ok until I find a better solution.
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Did you try a different pitch shifting plugin? Maybe Pitch Shifter II?
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Could be that your source audio files have different sample rates… I’ve noticed (for a long time, actually) that unless you bring in audio files with matching specs, you’ll occasionally get junk like that on output.
Doug
Doug Metz
Anode
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I tried that and compared to the AU pitch shift, it’s a warbly murky mess. AU is so much better. Pitch shifter II was pretty unusable. At least in this case/song.
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That’s a good point. But since I tried it directly in soundtrack, that shouldn’t have been an issue I’d think. But I got the same result. The music WAS 44.1 though, from Killer Tracks. I’ll give it a whirl in X after changing it to 48 first.
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As a side note, I’ve never been satisfied with Apple’s pitch shifting – always sounds wobbly and makes me a little queasy…. I’ve been using Audacity for pitch / tempo shifting, which does a much nicer job of things.
Doug Metz
Anode
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The pitch shifter in iZotope RX is excellent, if you don’t mind spending a little.
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What about Audition? I have it, but never used it.
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Just answered my own questions. Audition CC did a perfect job. No warbles, no pops. Bye bye soundtrack.
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