app.py

import struct
import pyaudio
import pvporcupine
import recorder
import emotion

filename="test.wav"

try:
    porcupine = pvporcupine.create(keywords=["computer", "alexa"])
    pa = pyaudio.PyAudio()
    audio_stream = pa.open(
        rate=porcupine.sample_rate,
        channels=1,
        format=pyaudio.paInt16,
        input=True,
        frames_per_buffer=porcupine.frame_length)
    while True:
        pcm = audio_stream.read(porcupine.frame_length)
        pcm = struct.unpack_from("h" * porcupine.frame_length, pcm)

        keyword_index = porcupine.process(pcm)

        if keyword_index >= 0:
            print("Hotword Detected")
            recorder.record(filename)
            emotion.predict(filename)
finally:
    if porcupine is not None:
        porcupine.delete()
    if audio_stream is not None:
        audio_stream.close()
    if pa is not None:
        pa.terminate()