def disp_audio(screen: Screen) -> None:
while True:
screen.clear()
b = ch.buff
sw = len(b)//bw
b = np.asarray([np.average(b[i:i+sw]) for i in range(0, len(b), sw)])
for i, v in enumerate(b):
screen.move((w-bw)//2+i, int(h//2-bh*v*scale))
screen.draw((w-bw)//2+i, h//2, char=char, colour=1 if np.max(b) > .2 else 7)
e = screen.get_key()
if e in (ord('Q'), ord('q')):
break
screen.refresh()
time.sleep(.01)
