diff --git a/audio.py b/audio.py
new file mode 100644
index 0000000..10b233e
--- /dev/null
+++ b/audio.py
@@ -0,0 +1,34 @@
+import numpy as np
+import librosa
+import soundfile as sf
+
+import opcodes
+import video
+
+
+class Audio:
+    def encode_audio(self, audio):
+        for a in audio:
+            yield opcodes.Tick(a)
+            yield opcodes.Tick(50-a)
+
+def main():
+    filename = librosa.util.example_audio_file()
+
+    data, samplerate = sf.read(filename, dtype='float32')
+    data = data.T
+    a = librosa.resample(data, samplerate, 20000).flatten()
+
+    a = librosa.util.normalize(a)
+    a = (a * 10 + 25).astype(np.int)
+
+    s = video.Video(frame_rate=None)
+    au = Audio()
+
+    with open("out.bin", "wb") as out:
+        out.write(bytes(s.emit_stream(au.encode_audio(a))))
+        out.write(bytes(s.done()))
+
+
+if __name__ == "__main__":
+    main()
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