04-22-2013 10:23 AM
04-22-2013 10:28 AM
Say what you want. It's not flanging because the pitch change, or "delay time modulation" as Phil noted, is too small. Sure it's a type of phasing and comb filtering, no argument there. But it's still not flanging.
So if you turn the depth knob down on a flanger to minimum is it no longer a flanger?
By the way a flanger for all intents and purposes is a comb filter whether modulated or not. Certainly flanger effects often give you other options like feedback control, variable speeds, etc.
04-22-2013 10:36 AM
Flanging is created by two tapes running at slightly different speeds due to pressure on the flanges. Tapes sound clean.
A little change in speed does not radically affect the harmonic content.
What you hear in the moving microphone is a very distinct change in harmonic content due to to it's motion away from the speaker. What's harder to hear is the change in phase as it moves, yet when the two signals are combined, that change in phase plus the obvious filtering effect due to change in proximity contributes to the effect as heard.
Any contribution of doppler effect due to motion of the mic is negligible and totally overshadowed by the other two things.
I respectfully request the nature of the 'change in harmonic content' you are claiming in the microphone example.
In the example youtube-vid, the OP gives you samples from both of the mics individually... there is no harmonic difference between them.
Man, if you cant hear any change in the moving mic, then I don't know what to tell ya.
do you think holding your finger down on a tape flange would not affect things in a similar way?
A BBD based flanger would also shift pitch and the spectrum sightly as well. Hell most BBD based flangers have walls and walls of filtering that affect the original signal quite a bit. Almost every flanger pedal I've looked at has several sallen key filters. As the delay time changes the content shifts as well.
04-22-2013 11:35 AM
I earlier interpretted "change in harmonic content" to mean a change in which harmonics are being expressed in relationship to the fundamental. E.G. an amplitude reduction (or increase) in the first harmonic. That specific thing is not happening, other than the reduction due to spacial change (as noted by Phil, and seems to be proportionally equivalent to the drop in the fundamental). But it seems that Eti implied 'harmonic content' to be a shift in the absolute pitch of the harmonics of the pitch being played, if I read him right (now); that, of course, is occuring since the fundamental frequency is also shifting; the harmonics will shift as well, as in any form of flanging.
I fear this will soon degrade to some form of poo-throwing with Eti, which is absolutely not my intent. I like that guy.
So I'ma gonna shut up and listen to people like Brian and Phil.
04-22-2013 05:04 PM
04-23-2013 02:35 PM
04-25-2013 01:45 AM
FYI stick to fuzzes
04-25-2013 03:44 AM
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