The 2-second area is my recollection as well, from when I played with noise sequence length, probably 20 years ago. Under 2, you don’t really have to pay attention to hear a repeat—your latches onto it easily—and as you get longer, you have to listen more carefully, and you get to the point quickly where you’re questioning yourself whether you’re hearing it repeat.
The bottom line, I think, is that yes white noise is random, but the low frequency components are, well, low frequency. And it’s pretty each to pick out a repeating bump there. Not necessarily the bass end, more in the kids, and is probably a tradeoff between frequency and ear sensitivity. I just did a q&d app, which generates 10 seconds of white noise, then adjusts the loop length as a percentage of the mouse vertical in the window, and start point based on horizontal position. Anyway, like I said, I’ve been through this before so there were no surprises. Sampo, were you looking for a particular revelation? I’m not sure if I’m listening for what you were getting at. On May 8, 2014, at 8:43 AM, STEFFAN DIEDRICHSEN <sdiedrich...@me.com> wrote: > I bounced some 100 secs of noise taken from the test oscillator in Logic Pro. > Loaded this in the IRU and did some cycling. > My finding: There are portions in the noise, that allows me to go down to 2 > seconds and it still sounded like straight (un-looped) noise. Other noise > portions had “features”, that sounded like persons talking in the background > or a squeak, or so. That’s so prominent, that it was easy to identify the > cycle. > Than, I did some experimentation, the IRU allows you to playback a selection > in a cycle and the cycle can be dragged around without interrupting the > playback. Doing that over a length of about 4 seconds with a 2 second long > selection sounded to me like straight noise. > > Steffan > > > On 08 May 2014, at 12:35, Sampo Syreeni <de...@iki.fi> wrote: > >> Interestingly, nobody's taken the test as of yet. Even if it ain't in the >> least bit a contest, and I already said to begin with that the result might >> be rather interesting for any and all. -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book reviews, dsp links http://music.columbia.edu/cmc/music-dsp http://music.columbia.edu/mailman/listinfo/music-dsp
