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darwin_bin64
examples
.gitignore
INSTALLATION.txt
LICENSE.txt
MSPd.h
Makefile
PenroseOscil.c
PenroseOscil.h
PenroseRand.c
PenroseRand.h
README.md
README.txt
Updates.txt
adsr~-help.pd
adsr~.c
arrayfilt~-help.pd
arrayfilt~.c
bashfest.h
bashfest_dsp.c
bashfest_helper.c
bashfest~-help.pd
bashfest~.c
bloscbank.c
buffet~-help.pd
buffet~.c
bvplay~-help.pd
bvplay~.c
cartopol~-help.pd
cartopol~.c
channel~-help.pd
channel~.c
chopper~-help.pd
chopper~.c
clean_selector~-help.pd
clean_selector~.c
click2bang~-help.pd
click2bang~.c
click2float~-help.pd
click2float~.c
clickhold~-help.pd
clickhold~.c
click~-help.pd
click~.c
collect.pl
convert.c
convolver~-help.pd
convolver~.c
counter~-help.pd
counter~.c
distortion~-help.pd
distortion~.c
dmach~-help.pd
dmach~.c
dynss~-help.pd
dynss~.c
ellipse.c
epluribus~-help.pd
epluribus~.c
expflam~-help.pd
expflam~.c
fft.c
fft4.c
fftease.h
fftease_oldskool.h
fftease_setup.c
flanjah~-help.pd
flanjah~.c
fold.c
from_msp.c
function~-help.pd
function~.c
granola~-help.pd
granola~.c
granulesf~-help.pd
granulesf~.c
granule~-help.pd
granule~.c
kbuffer~-help.pd
kbuffer~.c
killdc~-help.pd
killdc~.c
latch~-help.pd
latch~.c
leanconvert.c
leanunconvert.c
lpp.h
lyonpotpourri-meta.pd
m_pd.h
magfreq_analysis~-help.pd
magfreq_analysis~.c
makewindows.c
markov~-help.pd
markov~.c
mask~-help.pd
mask~.c
npan~-help.pd
npan~.c
oscil~-help.pd
oscil~.c
overlapadd.c
pd-template.spec
phasemod~-help.pd
phasemod~.c
player~-help.pd
player~.c
poltocar~-help.pd
poltocar~.c
power_of_two.c
pulser~-help.pd
pulser~.c
qsortE.c
quadpan~-help.pd
quadpan~.c
rotapan~-help.pd
rotapan~.c
rtrig~-help.pd
rtrig~.c
samm~-help.pd
samm~.c
sarec~-help.pd
sarec~.c
sel~-help.pd
sel~.c
shoehorn~-help.pd
shoehorn~.c
sigseq~-help.pd
sigseq~.c
smap-help.pd
smap.pd
splitbank~-help.pd
splitbank~.c
splitspec~-help.pd
splitspec~.c
squash~-help.pd
squash~.c
stutter~-help.pd
stutter~.c
ugens.h
unconvert.c
vdb~-help.pd
vdb~.c
vdp~-help.pd
vdp~.c
vecdex~-help.pd
vecdex~.c
waveshape~-help.pd
waveshape~.c
windowvec~-help.pd
windowvec~.c

README.md

Welcome to LyonPotpourri, version 3.0 (64-bit version).

http://disis.music.vt.edu/eric/LyonSoftware/Pd/LyonPotpourri/

LyonPotpourri is a collection of externals developed for the creation and performance of computer music. The externals were originally developed for Max/MSP, and then extended into hybrid code that could compile for both Max/MSP and Pd. As of version 3.0, the code bases of Max/MSP and Pd have diverged to such an extent that I decided to split the LyonPotpourri code into separate Pd and Max/MSP versions.

The Pd platform tends toward minimalism. Therefore, it is particularly advantageous for Pd users to become adept at designing their own externals. It is hoped that in addition to the utility of specific externals in this collection, the source code will be helpful for computer musicians who wish to learn how to write their own externals. For further guidance on that subject, please see my book “Designing Audio Objects for Max/MSP and Pd.”

LyonPotpourri 3.0 is Copyright Eric Lyon, 2007-2013, and is covered under the MIT license. Please see the accompanying License file for details.

Object Listing:

  • adsr~ a simple ADSR envelope that can be click triggered
  • arrayfilt~ fft-based filtering by drawing into an array
  • bashfest~ a click driven buffer player with randomized DSP
  • buffet~ provides operations on a stored buffer
  • bvplay~ selective playback from a stored buffer with enveloping and increment control
  • cartopol~ convert a spectral frame from cartesian to polar form
  • channel~ access to a precise address in the signal vector
  • chopper~ munging loop playback from a buffer
  • clean_selector~ like selector~ but crossfades when switching channels
  • click~ converts a bang to a click
  • click2float~ translates a signal click to a float message
  • clickhold~ sample and hold a click
  • convolver~ non-real-time convolution with impulses of arbitrary size
  • distortion~ lookup function distortion
  • dmach~ pattern based sample accurate drum machine prototype
  • expflam~ converts a click to an exponential flam click pattern
  • flanjah~ simple flanger
  • function~ write various functions into an array
  • granola~ granular pitch scaling
  • granulesf~ granular synthesis module reading from a soundfile in a buffer
  • granule~ granular synthesis module reading from a stored waveform in a buffer
  • kbuffer~ low sampling rate buffer to capture gestures
  • killdc~ DC block filter
  • latch~ sustain an incoming click with sample-accurate timing
  • magfreq_analysis~ transforms a time domain signal to a magnitude/frequency spectrum
  • markov~ implements a first order Markov chain
  • mask~ a click driven pattern sequencer
  • npan~ power-panning to an arbitrary number of output channels
  • oscil~ oscillator with flexible waveform specification
  • phasemod~ phase modulated waveform
  • player~ click driven buffer player that can sustain multiple iterations
  • poltocar~ convert spectral frame from polar to complex representation
  • pulser~ pulse wave generated by additive synthesis
  • quadpan~ pan an incoming sound within a quadraphonic plane
  • rotapan~ rotate an array of input channels to the same number of output channels
  • rtrig~ generates random click triggers
  • samm~ sample accurate multiple metronomes, with click signal articulation
  • sarec~ sample accurate recording
  • sel~ sample-accurate implementation of the sel algorithm
  • shoehorn~ collapse from a larger number to a smaller number of audio channels
  • sigseq~ signal level numerical sequencer
  • splitbank~ - split an incoming sound into complementary, independently tunable spectra
  • splitspec~ split an incoming sound into complementary spectra
  • squash~ implementation of a compression algorithm by Chris Penrose
  • stutter~ stuttering playback from an array
  • vdb~ a delay line using an array for storage (no vector limit on feedback delaytime)
  • vdp~ a simple, self-contained delay unit
  • vecdex~ outputs the sample index within the current signal vector
  • waveshape~ a Chebychev function lookup waveshaper
  • windowvec~ apply a Hann window to the input signal vector

Best wishes for the success of your creative projects and explorations!

Eric Lyon ericlyon@vt.edu Department of Music Institute for Creativity, Arts, and Technology Virginia Tech

lyonpotpourri3.0

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