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  • rgr
    Posts: 7
    Joined: Oct 8th, 2006, 10:42
    Creating the Shepard Tone in Logic Pro
    I'm trying to create the Shepard Tone in Logic Pro using pitch bend but can't seem to avoid a noticeable hiccup when it cycles back. [url]http://en.wikipedia.org/wiki/Shepard_tone[/url] [url]http://www.youtube.com/watch?v=DfJa3IC1txI[/url] Maybe there is another way to do this that I haven't considered but I'm trying it with each track containing an 8ve (i.e. 110hz, 220hz, 440hz) pitch bending up (or down) an 8ve. The highest track 8ve has fade out and the lowest track 8ve has a fade in. I realize this is kind of a weird question for the forum but thought I would see what is suggested. Thanks. Ray
    Reply
  • Rounik Admin
    Posts: 8713
    Joined: Dec 16th, 2006, 08:13
    Re: Creating the Shepard Tone in L...
    Hi Ray, Welcome to the forums! Hmmm... this rings a bell. aHa! It's all about using the sine sweep in the test oscillator. Check out this thread on creating the shepard tone in Logic: [url]http://www.macprovideo.com/forum/logic/tips-n-tricks&id=12096&sid=#12108[/url] Hope that helps Rounik
    Reply
  • rgr
    Posts: 7
    Joined: Oct 8th, 2006, 10:42
    Re: Creating the Shepard Tone in L...
    Thanks for the reply and the link to the related post. I agree about the Test Oscillator. It should be perfect for the job at hand but I can't get this Test Oscillator to behave. I try to program sweeps and type in 440 Hz as a start and 880 Hz and it changes the values ( 430, 870)when I hit return. So if I'm trying to keep 8ve sweeps consistent, it doesn't let me. I am definitely giving up on using pitch bend to pull this off. Thanks again!
    Reply
  • Rounik Admin
    Posts: 8713
    Joined: Dec 16th, 2006, 08:13
    Re: Creating the Shepard Tone in L...
    Hi Ray, I wish the Test Oscillator could be fine tuned! I've replied in the other thread to Doug in the hope we would be kind enough to share his project with us... and help us avoid doing the sticky maths work ;-) Cheers Rounik
    Reply
  • Rounik Admin
    Posts: 8713
    Joined: Dec 16th, 2006, 08:13
    Re: Creating the Shepard Tone in L...
    Hi Ray, Doug has kindly posted a link to his project and explained how he created the shepard tone effect. You can find it here: [url]http://www.macprovideo.com/forum/logic/tips-n-tricks&id=12096&sid=15#last[/url] :) Rounik
    Reply
  • rgr
    Posts: 7
    Joined: Oct 8th, 2006, 10:42
    Re: Creating the Shepard Tone in L...
    Thank you all the help. This should work out perfectly. I already expressed my thanks to Doug. Best, Ray
    Reply
  • Rounik Admin
    Posts: 8713
    Joined: Dec 16th, 2006, 08:13
    Re: Creating the Shepard Tone in L...
    Great to hear it! I'm going to check out Doug's project over the weekend. Looks interesting! Best Rounik
    Reply
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