[ 13. Dezember 2016 ]

NEWS – Release pyo 0.8.1 (Python dsp library)

Von: Olivier Bélanger via cec conference
Datum: Sun, 11 Dec 2016
Betreff: [cec-c] Release pyo 0.8.1 (Python dsp library)

[English version follows]

Bonjour à tous,

La version 0.8.1 de pyo est maintenant disponible en téléchargement :


La documentation:


Sources and suivi des bugs:



Pyo supporte maintenant les versions 2.7.x et 3.5.x de python. À première
vue, python 3.5.x semble plus stable et légèrement plus efficace que
python 2.7.x.

Pour la liste complète des changements apportés à cette version, voir la
section „What’s new“ plus bas.


Hello all,

pyo 0.8.1 is now available to download on pyo’s web site :


pyo’s documentation:


Latest sources and bug tracker:



Pyo now fully supports both python 2.7.x and 3.5.x. At first glance,
python 3.5.x seems to be more stable and a little more efficient than
python 2.7.x.


What’s new:
New objects:

– LogiMap, random generator based on the logistic map.

New functionalities:

– Added a method (sysexout()) to send sysex messages to the Server object.
– Added PyoTableObject.getBuffer() method. The PyoTableObject now support
the buffer protocol (see PEP 3118), which allow a table to share its data
memory with any object that support the buffer protocol (ex. numpy array).
– Added Server.setCallback() method to allow the user to define a custom
process function. This function will be called once per buffer size, just
before the computation of the audio objects tree.
– Added Server.getCurrentTime() and Server.getCurrentAmp() methods.
– Improve Looper object: Added a time stream, which gives the current
normalized position. Added loopnow() method, which allows to start a new
loop immediately with crossfade. Added appendFadeTime() and fadeInSeconds()
methods to give a more flexible control of the behavior of the object.
– Added an ‚inverse‘ argument to PVGate object. When set to True, the
damping factor is applied to bins with an amplitude above the threshold.
– Added a `callback` argument to PyoObject.set() method. The given callback
will be executed at the end of the ramp.
– Added ctrl() method (and some missing setter) to midi objects.
– TableWrite object now takes into account the feedback argument of NewTable
object and interpolates to fill in gaps if its writing pointer moves faster
than the sampling rate.
– Added a reset() method to various delay line-based objects (AllpassWG,
Chorus, Freeverb, Harmonizer, STRev, WGVerb, Waveguide).
– All objects can be used as iterator (will iterate over its internal sterams).
– SigTo ramp time now can be controlled at audio rate.
– Iter object now sends a trigger when it reaches the last value.
– Iter object now accepts PyoObjects in its list of values.

Bug fixes:

– Fixed jack ports auto-connection algorithm.
– Several minor bug fixes.


– Added low-latency driver WDMKS in the portaudio build routine for Windows.
– Replaced all printf calls with PySys_WriteStdout. This allow to redirect
messages from pyo to a string or a file, instead of the stdout.


– Added new examples, 05-envelopes/ and 06-filters/.
– Added a new file, called „How to improve performance of your pyo programs“,
to the documentation.