[music-dsp] Is beating the same thing as flanging?

[Didier Dambrin]

Isn't the main difference between phasing & flanging in the scale of the 
notches? Linear in octaves for phasing, in Hz for flanging?

Now, when you do phasing in the freq domain, you have control on everything, 
the number & shape of notches, etc, & you don't even have to care about what 
defines a flanger & how to achieve it.



> On 14/11/2010 05:45, Nigel Redmon wrote:
>> On Nov 12, 2010, at 1:44 AM, Richard Dobson wrote:
>>> Both flanging and phasing (closely related) are based on the use of
>>> a delayed copy of a source, plus the undelayed source, mixed
>>> together.
>>
>>
>> No--you are describing flanging--phasing is done differently. The
>> thing that the two having in common at phase cancellation (resulting
>> in notches), but the method and results are quite different. Hmm...
>> before elaborating further, I think you meant to say flanging and
>> chorus (not phasing)... -- dupswapdrop -- the music-dsp mailing list
>> and website: subscription info, FAQ, source code archive, list
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>> http://music.columbia.edu/cmc/music-dsp
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>>
>
> No I did mean phasing. I take your point (and indeed have implemented
> phasers myself using cascaded allpass filters - more creative scope in
> all sorts of ways); but I am still inclined to class phasers and
> flangers together as delay-based effects, though in the former the
> delays are ~much~ shorter and the modulation depth somwehat shallower.
> Otherwise, we have to class a phaser as a filter, which I think is at
> least as potentially misleading as the alternative. I seem to recall
> early phasers used bucket-brigade delays, rather than explicit filters,
> as such.  But clearly the boundary between a time-variable filter and a
> phaser is especially blurred!
>
> Richard Dobson
> --
> 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
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