import alsaaudio
import numpy as np
import wave

import socket

# Network
UDP_IP   = "172.16.11.27"
UDP_PORT = 5005
sock     = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
inp = alsaaudio.PCM(
    alsaaudio.PCM_CAPTURE,       # capture mode
    # alsaaudio.PCM_NONBLOCK,      # non-blocking
    alsaaudio.PCM_NORMAL,

    channels=1,                  # mono
    rate=48000,                  # sample rate (Hz)
    format=alsaaudio.PCM_FORMAT_S16_LE,  # 16-bit
    periodsize=960,             # frames per read
    device='default'
)

# frames = []

try:
    while True:
        length, data = inp.read()   # read audio chunk
        if length > 0:
            # convert raw bytes to numpy array
            audio = np.frombuffer(data, dtype=np.int16)
            sock.sendto(data, (UDP_IP, UDP_PORT))
            print(f"Frames: {length} | Max amplitude: {np.max(np.abs(audio))}")
except KeyboardInterrupt:
    print("Stopped")

finally:
    sock.close()
    print("Stopped")