#N canvas 483 99 606 614 12;
#X declare -path else;
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-1 -1 100 256;
#X obj 309 262 nbx 5 14 0.1 100 1 0 empty empty empty 0 -8 0 10 -228856
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#X text 295 230 resonant/center frequency;
#X text 367 261 resonance;
#X obj 165 287 allpass.2nd~ 1000 0.1;
#X obj 147 235 noise~;
#X obj 147 366 out~;
#X obj 147 323 *~;
#X text 77 131 In this example \, in order to show how an allpass filter
can affect the sound \, we sum a noise input to the filtered output
\, which cancels frequencies by phase opposition \, rather like a bandstop
filter., f 62;
#X text 61 457 The resonant frequency is the point at which the pahse
is shifted to 180º \, so it is the frequency point we have a full
phase cancellation. This is also considered a kind of resonant filter
because the the steepness of phase distortion is determined by the
Q parameter. In the context of this example \, where it acts like a
bandstop filter \, it is like the Q parameter controls the bandwidth
of the band rejection., f 69;
#X text 61 555 See its help file for more details.;
#X obj 398 17 declare -path else;
#X text 77 63 An allpass filter does not affect the frequency response
\, only the phase. This filter will be better presented in a later
and more advanced section on filters., f 62;
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#X connect 1 0 4 2;
#X connect 4 0 7 1;
#X connect 5 0 7 0;
#X connect 5 0 4 0;
#X connect 7 0 6 0;
