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Pure Data

PureData: AudioFiltersObjects

Name

Library/Path

Function

Audio Filters

Vanilla Objects
env~
envelope follower
vcf~
voltage-controlled bandpass filter
noise~
uniformly distributed white noise
hip~
one-pole high pass filter
lop~
one-pole low pass filter
bp~
bandpass filter
biquad~
2-pole-2-zero filter
samphold~
sample and hold unit
print~
print out raw values of a signal
rpole~
real one-pole (recursive) filter, raw
rzero~
real one-zero (non-recursive) filter, raw
rzero_rev~
real one-zero (non-recursive) „reverse“ filter, raw
cpole~
complex one-pole (recursive) filter, raw
czero~
complex one-zero (non-recursive) filter, raw
czero_rev~
complex one-zero (non-recursive) „reverse“ filter, raw
Extended Objects
bandpass equalizer highpass highshelf hlshelf lowpass lowshelf notch flatspace ggee coefficients for biquad~
1p1z iemlib control IIR filter 1. order
aenv~ bsaylor flatspace asymptotic ADSR envelope generator
allpass~ cyclone allpass filter
ap1~ ap2~ iemlib allpass 1. / 2. order
bpq2~ bp2~ iemlib bandpass 2.order with Q inlet
bpw2~ iemlib bandpass 2.order with bandwidth inlet
bsq2~ iemlib bandstop 2.order (notch) with Q inlet
bsw2~ iemlib bandstop 2.order (notch) with bandwidth inlet
burrow~
a cross-referenced filtering object
centerring~
a spectral modulation object
codepend~
a classic block convolution object
comb~ cyclone comb filter
complex
mod~ frequency shifter
compressor~
audio compressor
complex-mod~ vanilla frequency shifter
convol~
convobrosfilter
crossx~
a cross synthesis object with gating
cverb~
implementation of the Csound reverb
dentist~
a partial knockout object
disarrain~
an interpolating version of disarray~
disarray~
a spectral redistribution object
drown~
a noise reduction (or increase) object
enveloper~
the (old???) envelope generator of iemlib
ether~
another spectral compositing object
filter~ flatspace iemlib multiple object for all useful IIR-filters 1. and 2. order like lowpass, highpass, bandpass, bandstop, allpass, etc
filterbank~
outputs the frequence response against a set of band pass filters
filtersme1~
a hard filtering of low(soft) frequencies
filtersme2~
filtering by drawing with mouse in array
FIR~ flatspace iemlib convolve a signal with an array
freeverb~ freeverb Schroeder/Moorer reverb model
hilbert~ vanilla phase quadrature of input for complex modulation
hml_shelf~ flatspace iemlib high-mid-low-shelving filter
hp1~ hp2~ iemlib highpass 1. / 2. order
hp2_butt~ hp3_butt~ hp4_butt~ hp5_butt~ hp6_butt~ hp7_butt~ hp8_butt~ hp9_butt~ hp10_butt iemlib highpass 2.3.4.5.6.7.8.9.10.order with butterworth characteristic
hp2_cheb~ hp3_cheb~ hp4_cheb~ hp5_cheb~ hp6_cheb~ hp7_cheb~ hp8_cheb~ hp9_cheb~ hp10_cheb~ iemlib highpass 2.3.4.5.6.7.8.9.10.order with chebyshev characteristic
hp2_bess~ hp3_bess~ hp4_bess~ hp5_bess~ hp6_bess~ hp7_bess~ hp8_bess~ hp9_bess~ hp10_bess~ iemlib highpass 2.3.4.5.6.7.8.9.10.order with bessel characteristic
hp2_crit~ hp3_crit~ hp4_crit~ hp5_crit~ hp6_crit~ hp7_crit~ hp8_crit~ hp9_crit~ hp10_crit~ iemlib highpass 2.3.4.5.6.7.8.9.10.order with critical damping
leaker~
a sieve based cross fader
limiter~ flatspace zexy a limiter/compressor module
lp1~ lp2~ iemlib lowpass 1. / 2. order
lp1_t~ flatspace iemlib lowpass 1.order with time_constant inlet
lp2_butt~ lp3_butt~ lp4_butt~ lp5_butt~ lp6_butt~ lp7_butt~ lp8_butt~ lp9_butt~ lp10_butt~ iemlib lowpass 2.3.4.5.6.7.8.9.10.order with butterworth characteristic
lp2_cheb~ lp3_cheb~ lp4_cheb~ lp5_cheb~ lp6_cheb~ lp7_cheb~ lp8_cheb~ lp9_cheb~ lp10_cheb~ iemlib lowpass 2.3.4.5.6.7.8.9.10.order with chebyshev characteristic
lp2_bess~ lp3_bess~ lp4_bess~ lp5_bess~ lp6_bess~ lp7_bess~ lp8_bess~ lp9_bess~ lp10_bess~ iemlib lowpass 2.3.4.5.6.7.8.9.10.order with bessel characteristic
lp2_crit~ lp3_crit~ lp4_crit~ lp5_crit~ lp6_crit~ lp7_crit~ lp8_crit~ lp9_crit~ lp10_crit~ iemlib lowpass 2.3.4.5.6.7.8.9.10.order with critical damping
maverage~
moving average filter with IIR
mindwarp~
a spectral formant warping object
moog~ flatspace ggee signal controlled "moog" resonant lowpass
morphine~
a morphing object
multiverb~
Schroeder/Moorer reverb model
multyq~
a four band filter
pan~
equal power stereo panning
pansig~ flatspace motex same as above but takes a signal modulator rather than a float
para_bp2~ flatspace iemlib parametril bandpass 2. order
pin~ flatspace mjlib randomly delivers the input signal to either the right or left outlet with a given probability
pitchnoise~
Harmonic/inharmonic monophonic timbre separator
presidency~
a spectral sampler with pitch control
pvgrain~
a spectrum analyzer for granular resynthesis
pvharm~
a harmonizer
pvoc~
an additive synthesis phase vocoder
pvtuner~
a spectrum quantizer for tuning to arbitrary scales
pvwarp~
a non-linear frequency warper
reanimator~
an audio texture mapper
resent~
similar to residency~ but with independent bin control
residency~
a spectral sampler useful for time scaling
scrape~
a noise reduction (or increase) object with frequency control
shapee~
a frequency shaping object
swinger~
a phase swapping object
taint~
a cross synthesis object
vacancy~
a spectral compositing object
xsyn~
a cross synthesis with compression object
pvcompand~
a spectral compressor/expander object
quantize~ flatspace zexy quantize a signal with a variable step-number
mov_avrg_kern~ flatspace iemlib moving average filter kernel
mypol2rec~
fft stuff, needed as abstraction for some other patches
myrec2pol~
fft stuff, as above (ggee)
para_pb2~
parametrical bandpass ???
rbpq2~ iemlib resonance bandpass 2.order with Q inlet
rbpw2~ iemlib resonance bandpass 2.order with bandwidth inlet
reccombfilter~
rough combfilter feedback
rev1~ vanilla series of allpass with exponentially growing delay lines
rev2~ vanilla simple 1-in, 4-out reverberator
rev3~ vanilla hard-core, 2-in, 4-out reverberator
schroeder~
schroeder reverb
swap~ flatspace zexy byte-swap a 16bit signal
svf~ bsaylor cyclone flatspace state-variable filter
vcf_hp2~ vcf_hp4~ vcf_hp6~ vcf_hp8~ iemlib highpass 2.4.6.8.order with freq and Q signal inlets
vcf_lp2~ vcf_lp4~ vcf_lp6~ vcf_lp8~ iemlib lowpass 2.4.6.8.order with freq and Q signal inlets
vcf_bp2~ vcf_bp4~ vcf_bp6~ vcf_bp8~ iemlib bandpass 2.4.6.8.order with freq and Q signal inlets
vcf_rbp2~ vcf_rbp4~ vcf_rbp6~ vcf_rbp8~ iemlib resonance bandpass 2.4.6.8.order with freq and Q signal inlets
bdiag~ creb flatspace block diagonal state space system (spectral processor)
cheby~ creb flatspace chebyshev polynomial waveshaper
dist~ creb flatspace dist~ waveshaper
eadsr~ creb flatspace exp. attack decay sustain release
ead~ creb flatspace exp. attack decay
ear~ creb flatspace exp. attack release
lattice~ creb flatspace lattice~ filter
permut~ creb flatspace random permute a signal block
qmult~ creb flatspace multiply 2 quaternion signals
qnorm~ creb flatspace normalize a quaternion signal (or any 4 channel sig)
resofilt~ creb a reso filter (4pole, 3pole)
xfm~ creb flatspace coupled frequency modulation
reson~ cxc cyclone flatspace markex interpolating reson filter
pan_gogins~ deprecated flatspace modification of pan~
voiding_detector~ ekext estimates wether a frame of speech is voiced or unvoiced
scramble~ ext13 flatspace big fun with spoken words or beats
ap1c~ ap2c~ iemlib allpass 1. / 2. order for filter cascades
hp1c~ hp2c~ iemlib highpass 1. / 2. order for filter cascades
lp1c~ lp2c~ iemlib lowpass 1. / 2. order for filter cascades

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