#!/usr/bin/env python3
"""Stream microphone audio to stdout as raw float32 PCM at 16kHz mono."""

import sys
import sounddevice as sd

SAMPLE_RATE = 16000
CHANNELS = 1
DTYPE = "float32"
BLOCK_SIZE = 1024

stream = sd.RawInputStream(samplerate=SAMPLE_RATE, channels=CHANNELS, dtype=DTYPE, blocksize=BLOCK_SIZE)
stream.start()

try:
    while True:
        data, _ = stream.read(BLOCK_SIZE)
        sys.stdout.buffer.write(bytes(data))
except KeyboardInterrupt:
    stream.stop()
    stream.close()