Signal Processing¶

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audiolazy

Links¶

http://scikits.appspot.com/talkbox

http://bmcfee.github.io/librosa/

http://thomas-cokelaer.info/software/spectrum/html/contents.html

http://nipy.org/nitime/index.html

https://github.com/MTG/sms-tools

http://pythonhosted.org/audiolazy/

http://ajaxsoundstudio.com/software/pyo/

Bob (signal-processing and machine learning toolbox)
http://idiap.github.io/bob/

Speech Signal Processing:
https://github.com/idiap/ssp

http://siggigue.github.io/pyfilterbank/, https://github.com/SiggiGue/pyfilterbank

https://github.com/fakufaku/AudioTools

Signal Processing for Communications Jupyter notebooks with examples, free PDF book, MOOC

MIT opencourseware video lectures: Signals and Systems (Alan V. Oppenheim), Digital Signal Processing (Alan V. Oppenheim)

Soundpipe (C library): http://paulbatchelor.github.io/proj/soundpipe.html, https://github.com/PaulBatchelor/Soundpipe

libaudioverse, A (C++) library for 3D and environmental audio:
http://camlorn.github.io/libaudioverse/docs/branches/master/libaudioverse_manual.html
https://github.com/camlorn/libaudioverse
Python bindings: http://camlorn.github.io/libaudioverse/docs/branches/master/python/

https://github.com/ronnyandersson/zignal

https://github.com/crabl/HeadSpace

http://willdrevo.com/fingerprinting-and-audio-recognition-with-python/

https://github.com/Parisson/TimeSide/
http://files.parisson.com/timeside/doc/index.html
https://github.com/thomasfillon/Timeside-demos

https://github.com/pierre-rouanet/dtw
https://github.com/pierre-rouanet/aupyom

https://github.com/micknoise/Maximilian (C++)

https://github.com/endolith/waveform_analysis
https://gist.github.com/endolith/148112
http://mathworks.com/matlabcentral/fileexchange/69-octave

https://github.com/astorfi/speechpy

signal (C++11): https://github.com/ideoforms/signal, http://libsignal.io/

https://github.com/everdrone/libsnd (C++)

https://github.com/LancePutnam/Gamma (C++)

https://madmom.readthedocs.io/, https://github.com/CPJKU/madmom (Python audio and music signal processing library)

Automatic headphone equalization: https://github.com/jaakkopasanen/AutoEq

Introduction to Digital Filters (with Audio Applications): https://ccrma.stanford.edu/~jos/filters/
Jupyter Notebooks: https://github.com/khiner/notebooks/tree/master/introduction_to_digital_filters

C++ Library for Audio Analysis: http://www.adamstark.co.uk/project/gist/, https://github.com/adamstark/Gist

The Synthesis ToolKit in C++ (STK): https://ccrma.stanford.edu/software/stk/, https://github.com/thestk/stk

Fast, modern C++ DSP framework, FFT, Audio Sample Rate Conversion, FIR/IIR/Biquad Filters (SSE, AVX, ARM NEON): https://github.com/kfrlib/kfr (GPL-3.0)

A Collection of Useful C++ Classes for Digital Signal Processing: https://github.com/vinniefalco/DSPFilters

Phase Vocoder In Python: https://github.com/haoyu987/phasevocoder

Learning DSP Illustrated: https://dspillustrations.com/

https://rust.audio/articles/useful-resources/

PySDR: A Guide to SDR and DSP using Python: https://pysdr.org/

The Scientist and Engineer's Guide to Digital Signal Processing: http://www.dspguide.com/pdfbook.htm

Intuitive Guide to Convolution: https://betterexplained.com/articles/intuitive-convolution/

Q Audio DSP Library (C++): https://cycfi.github.io/q/, https://github.com/cycfi/q

https://github.com/olilarkin/awesome-musicdsp

https://github.com/c4dm/qm-dsp (C++)

A Hierarchical Approach for Audio Capture, Archive, and Distribution: https://www.aes.org/e-lib/browse.cfm?elib=20456

The Gentle Art of Dithering: https://www.aes.org/e-lib/browse.cfm?elib=20457

http://bastibe.de/2012-11-02-real-time-signal-processing-in-python.html

http://www.swharden.com/blog/2013-05-09-realtime-fft-audio-visualization-with-python/

http://www.swharden.com/blog/2013-05-08-realtime-data-plotting-in-python/

http://www.swharden.com/blog/2010-03-05-realtime-fft-graph-of-audio-wav-file-or-microphone-input-with-python-scipy-and-wckgraph/

http://samcarcagno.altervista.org/blog/basic-sound-processing-python/

http://blog.chrisarndt.de/article/499 (de)

Think DSP: Digital Signal Processing in Python: http://greenteapress.com/thinkdsp/

https://github.com/kylemcdonald/AudioNotebooks

https://zach.se/generate-audio-with-python/
https://github.com/zacharydenton/wavebender

https://github.com/hecanjog/pippi http://pippi.readthedocs.io/en/latest/

https://project-awesome.org/faroit/awesome-python-scientific-audio

Filter Design¶

http://www.dsprelated.com/showarticle/164.php
http://www.dsprelated.com/showarticle/170.php
http://www.dsprelated.com/showarticle/194.php

http://www.dsprelated.com/showcode/270.php

http://scipy-cookbook.readthedocs.org/items/FIRFilter.html

http://scipy-cookbook.readthedocs.org/items/FiltFilt.html

https://github.com/chipmuenk/pyFDA

Fourier Transform¶

Relation of Fourier Transform with Epicycles¶

https://www.youtube.com/watch?v=QVuU2YCwHjw

https://www.youtube.com/watch?v=qS4H6PEcCCA

https://mathematica.stackexchange.com/questions/118834/how-to-graph-the-contour-of-a-resulting-manipulate-curve

https://mathematica.stackexchange.com/questions/171755/how-can-i-draw-a-homer-with-epicycloids

https://bl.ocks.org/jinroh/7524988

Drawing an elephant with four complex parameters: https://doi.org/10.1119/1.3254017

IIR¶

http://www.earlevel.com/main/2012/11/26/biquad-c-source-code/

http://www.earlevel.com/main/2013/10/13/biquad-calculator-v2/

IIR filters can be evaluated in parallel: https://raphlinus.github.io/audio/2019/02/14/parallel-iir.html

https://github.com/berndporr/iir1 (C++)

Fixed Point¶

http://www.dsprelated.com/showarticle/580.php

MP3 Encoder¶

http://nbviewer.ipython.org/github/LCAV/MP3Lab/blob/master/mp3python.ipynb

Digital Media¶

http://xiph.org/video/

Time-Frequency Transforms¶

https://en.wikipedia.org/wiki/Constant_Q_transform

https://grrrr.org/research/software/nsgt/
https://github.com/grrrr/nsgt

Voice Activity Detection (VAD)¶

https://github.com/wiseman/py-webrtcvad

Music Information Retrieval¶

http://musicinformationretrieval.com/
https://github.com/stevetjoa/stanford-mir

Synthesizer¶

https://github.com/irmen/synthesizer

https://github.com/VCVRack/Rack

Signal Processing in General¶

http://python-for-signal-processing.blogspot.de/

https://sites.google.com/site/sigsys15/

A Journey in Signal processing with IPython: https://github.com/jfbercher/LecturesSignalProcessing

Kalman Filters¶

A. Kiruluta, M. Eizenman und S. Pasupathy. „Predictive head movement tracking using a Kalman filter”, IEEE Transactions on Systems, Man and Cybernetics,Vol. 27, No. 2, 1997.

J. J. LaViola, “Double exponential smoothing: An alternative to Kalman filter-based predictive tracking”, Workshop on Virtual environments (EGVE '03), Zürich, 2003.

https://ntrs.nasa.gov/citations/20040037784

https://github.com/rlabbe/Kalman-and-Bayesian-Filters-in-Python

https://praveshkoirala.com/2023/06/13/a-non-mathematical-introduction-to-kalman-filters-for-programmers/, https://news.ycombinator.com/item?id=36971975

https://www.kalmanfilter.net/, https://news.ycombinator.com/item?id=37879715

https://www.bzarg.com/p/how-a-kalman-filter-works-in-pictures/, https://news.ycombinator.com/item?id=29473271

https://jbconsulting.substack.com/p/is-the-kalman-filter-just-a-low-pass https://news.ycombinator.com/item?id=32271351

Systems and Control Theory¶

https://github.com/python-control/python-control

http://harold.readthedocs.io/, https://github.com/ilayn/harold

https://github.com/alchemyst/Skogestad-Python

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