Rufuss Sewell Posted February 27, 2008 Share Posted February 27, 2008 I've been having this problem with Ultrabeat cutting off anything before the firt zero crossing. I have a good kick sample that I'd like to host somewhere so that people can experiment and let me know if it's a real bug or if I'm doing something wrong. Is there a file section on this site? It's only 28kb. Link to comment Share on other sites More sharing options...
David Nahmani Posted February 27, 2008 Share Posted February 27, 2008 Upload it right here: click on "Add an Attachment" below your reply box. Link to comment Share on other sites More sharing options...
Rufuss Sewell Posted February 28, 2008 Author Share Posted February 28, 2008 It says the extension wav is not allowed. Link to comment Share on other sites More sharing options...
Rufuss Sewell Posted February 28, 2008 Author Share Posted February 28, 2008 Any help as to how to get a .wav file attached? Link to comment Share on other sites More sharing options...
David Nahmani Posted February 28, 2008 Share Posted February 28, 2008 Archive your project folder. (Control-click it and choose archive). But first strip it down of all the unnecessary audio files. Link to comment Share on other sites More sharing options...
DaniGordon Posted February 28, 2008 Share Posted February 28, 2008 Archive your project folder. (Control-click it and choose archive). But first strip it down of all the unnecessary audio files. Or just archive the wav file itself. Link to comment Share on other sites More sharing options...
Rufuss Sewell Posted February 29, 2008 Author Share Posted February 29, 2008 Ok, here's a zip. As I said it's just a single .wav file. Try it in the finder window and then in UB. You'll hear a dramatic difference. It's almost certainly because the sample does not start at a zero crossing and UB is starting the sample at the first zero crossing. 909BD_Sweet01.zip Link to comment Share on other sites More sharing options...
brianm Posted February 29, 2008 Share Posted February 29, 2008 Ok, here's a zip. As I said it's just a single .wav file. Try it in the finder window and then in UB. You'll hear a dramatic difference. It's almost certainly because the sample does not start at a zero crossing and UB is starting the sample at the first zero crossing. Utrabeat is starting the sample from the same place (if you bounce it, you can see is is in phase with the original), but it is making a zero crossing at the sample start. As a test I used the pencil in the sample editor to make the first zero crossing in the sample really far in and bounced it out of Ultrabeat. It's still in phase, but the sample starts at a zero crossing. With a bit of a fade in, even though I had none in the ADSR. See the attached pic, the waveform on top is the original sample, the lower one is after playing it in Ultrabeat. Link to comment Share on other sites More sharing options...
Rufuss Sewell Posted March 2, 2008 Author Share Posted March 2, 2008 So is it safe to say that UB is broken? Or is it my sample collection that is out of line? Link to comment Share on other sites More sharing options...
Rufuss Sewell Posted March 3, 2008 Author Share Posted March 3, 2008 It seems like UB altering samples would be a big deal to people. I'm surprised this topic isn't getting more action. I'd really just like to know if this is normal behavior and my samples are messed up, or if UB is broken. Thanks! Link to comment Share on other sites More sharing options...
David Nahmani Posted March 3, 2008 Share Posted March 3, 2008 Wow, it makes quite a drastic difference with that particular sample, I noticed it as well. I say it's worth a bug report, as you should get the exact same sound wether UB triggers the sample or you put the sample manually in the Arrange area. Link to comment Share on other sites More sharing options...
Jope Posted March 4, 2008 Share Posted March 4, 2008 Maybe it's a feature, not a bug... How long is the period of this difference at the waveform's left end? Of course if the leading edge of a waveform is not as steep as it should be, there is less "klick" at the sound's beginning, but edges are always tricky with time-sliced waveforms, and Ultrabeat does more than just playing a sample: It also can change the sample's pitch and thus makes an additional sample rate conversion necessary. Of course if the sample isn't being transposed, there is no need for such thing, but I think Ultrabeat does the same calculations anyway. Be aware it's at least bad style to have a sampled waveform not start near zero; several playback algorithms might come to different interpretations. Did you try to add some zero samples at the waveform's start? Link to comment Share on other sites More sharing options...
fader8 Posted March 4, 2008 Share Posted March 4, 2008 Maybe it's a feature, not a bug... Hi Jope. Interesting. It could be that UB has to modify the sample this way in order to properly calculate envelopes, ie a deliberate quantization of the sample start. In general, it's good engineering practice to have your one-shot samples start with a zero crossing, but I realize thats time consuming. Link to comment Share on other sites More sharing options...
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