Fix: Local .wav generation script

README.md

@@ -3,10 +3,25 @@
 ## About
 Generate valid WAV files in Cairo
 
+## Features
+ - [x] Output WAV file
+ - [x] Handle bit-depths (4, 8, 16, 32)
+ - [ ] Handle multiple/stereo channels
+ - [x] Generate square wave form
+ - [x] Generate sawtooth wave forms
+ - [x] Generate triangle wave forms
+ - [ ] Generate sine wave forms
+ - [ ] Generate an instrument (see [Koji](https://github.com/cienicera/Koji))
+ - [x] Play [Koji](https://github.com/cienicera/Koji) notes
+ - [ ] Play [Koji midi tracks](https://github.com/cienicera/Koji)
+ - [ ] Generate an 4/8-bit low sample rate sound pack (kick, bass, snare, hi-hat)
+ - [X] Play short melodies
+
+
 ## Local testing: 
 ```bash
-scarb test -f get_notes > tmp/test; 
-python scripts/data_to_wave.py tmp/test; 
+scarb test -f get_notes > tmp/test
+python scripts/data_to_wave.py tmp/test
 mplayer tmp/test.wav
 ```
 
@@ -17,7 +32,6 @@ python scripts/get_notes.py
 mplayer tmp/out.wav
 ```
 
-
 ## Resources
 - [WAVE PCM File format](http://soundfile.sapp.org/doc/WaveFormat/)
 - Unix: `man sox`, `ffprobe file.wave`

scripts/data_to_wave.py

@@ -10,10 +10,12 @@
 with open(input_file) as f:
     data = f.read().splitlines()
 
-# plt.plot("".join(data[5:-3]))
-# plt.show()
+i = 0
+while i < len(data):
+    if data[i].startswith('RIFF'): break
+    i+=1
 
-data_bytes = "".join(data[5:-3])
+data_bytes = "".join(data[i:-3])
 data_bytes = data_bytes.encode('utf-8')
 data_bytes = data_bytes.decode('unicode-escape')
 data_bytes = data_bytes.encode('ISO-8859-1')