update 34

README.md

@@ -40,11 +40,11 @@ don't expect commits, docs, or comments to be any verbose.
 [sweeps]: http://www.sound.sie.dendai.ac.jp/dsp/e-21.html
 [svf]: http://nbviewer.ipython.org/urls/music-synthesizer-for-android.googlecode.com/git/lab/Second%20order%20sections%20in%20matrix%20form.ipynb
 
-all wrapped up in a inconveniently generic "lib" module!
+all wrapped up in a inconveniently named "lib" module!
 
 ## dependencies
 
-python 3.4+
+python 3.5+
 
 numpy scipy sympy matplotlib ewave
 

autoupdate

@@ -4,6 +4,8 @@ set -e
 [ -d lib ] && rm -r lib
 dropbox_uploader -q download py/lib >/dev/null
 
+cp lib/README.md .
+
 if [ ! -d .git ]; then
     git -q init
     git add .gitignore '*' '**/*'

lib/README.md

@@ -0,0 +1,51 @@
+# random dsp code
+
+it's a bunch of half-baked python code that's kinda handy.
+
+don't expect commits, docs, or comments to be any verbose.
+
+## the stuff
+
+* a basic BS.1770-3 normalization implementation
+— [bs.py](/lib/bs.py)
+
+* biquad butterworth/chebyshev filters [(via DSPFilters)][dspf]
+— [nsf.py](/lib/nsf.py)
+
+* bilinear transformation: s-plane to z-plane
+— [planes.py](/lib/planes.py)
+
+* various functions for biquad filters
+— [bq.py](/lib/bq.py) [\_\_init\_\_.py](/lib/__init__.py)
+
+* some functions for state-variable filters [(via Raph Levien)][svf]
+— [svf.py](/lib/svf.py)
+
+* sine sweeps, and the Optimized Aoshima's Time-Stretched Pulse [(via here)][sweeps]
+— [sweeps.py](/lib/sweeps.py)
+
+* a lot of stuff for magnitude plotting like tilting and smoothing
+— [fft.py](/lib/fft.py) [smoothfft.py](/lib/smoothfft.py) [\_\_init\_\_.py](/lib/__init__.py)
+
+* rough experiments with psychoacoustic equalization ("neon pink" and other crap)
+— [data.py](/lib/data.py) [\_\_init\_\_.py](/lib/__init__.py)
+
+* miscellaneous matplotlib stuff
+— [plot.py](/lib/plot.py)
+
+* miscellaneous utility functions
+— [util.py](/lib/util.py) [wav.py](/lib/wav.py)
+
+[dspf]: https://github.com/vinniefalco/DSPFilters/
+[sweeps]: http://www.sound.sie.dendai.ac.jp/dsp/e-21.html
+[svf]: http://nbviewer.ipython.org/urls/music-synthesizer-for-android.googlecode.com/git/lab/Second%20order%20sections%20in%20matrix%20form.ipynb
+
+all wrapped up in a inconveniently named "lib" module!
+
+## dependencies
+
+python 3.5+
+
+numpy scipy sympy matplotlib ewave
+
+usually run in an ipython environment.