# Print out realtime audio volume as ascii bars

import sounddevice as sd
import numpy as np

def callback(indata: np.ndarray, outdata: np.ndarray, frames: int, time, status) -> None:
    print(indata.shape)
    volume_norm = np.linalg.norm(indata)*10
    print ("|" * int(volume_norm))

with sd.Stream(callback=callback):
    sd.sleep(10000)