#!/usr/bin/env nix-script
#!>python
#! python | pyaudio

## Listen to claps from the microphone.

import pyaudio, audioop

settings = {
	"format": pyaudio.paInt16,
	"channels": 2,
	"rate": 44100,
	"input": True,
	"frames_per_buffer": 1024
}
audio = pyaudio.PyAudio()
stream = audio.open(**impostazioni)
chunk = int(impostazioni["rate"] * 0.025)

while True:
	noisy = 0
	for i in range(10):
		block = stream.read(chunk)
		if audioop.rms(block, 2) > 100:
			noisy += 1
	if 3 <= noisy < 8:
		print("clap")