add docs

2020-05-14 13:59:18 -07:00 · 2020-05-14 13:59:18 -07:00 · 22779c4a69
commit 22779c4a69
parent 7207a8e560
7 changed files with 234 additions and 0 deletions
--- a/docs/TheoryOfCCDFT/cc-screenshot3.png
+++ b/docs/TheoryOfCCDFT/cc-screenshot3.png
--- a/docs/TheoryOfCCDFT/chop.wav
+++ b/docs/TheoryOfCCDFT/chop.wav
--- a/docs/TheoryOfCCDFT/chop2.wav
+++ b/docs/TheoryOfCCDFT/chop2.wav
--- a/docs/TheoryOfCCDFT/chopfast.png
+++ b/docs/TheoryOfCCDFT/chopfast.png
--- a/docs/TheoryOfCCDFT/chopfast.wav
+++ b/docs/TheoryOfCCDFT/chopfast.wav
--- a/docs/TheoryOfCCDFT/test.py
+++ b/docs/TheoryOfCCDFT/test.py
@ -0,0 +1,16 @@
+import struct
+import numpy as np
+from scipy import signal as sg
+import soundfile as sf
+
+Fs = 44100
+freq = 40
+chop = 200
+samples = 44100
+
+x = np.arange(samples)
+y = 10000 * np.sin(2 * np.pi * freq * x / Fs)
+c = sg.square(2 * np.pi * chop * x / Fs)
+
+sf.write("chop.wav", (y * c).astype(np.int16), samplerate = Fs)
+