# Python program py_dev.py (AHG, 2024)
import os, pyaudio
pa = pyaudio.PyAudio() # PyAudio instance
dvn = pa.get_device_count()
os.system('clear')
print(__file__)
txa = "\nDevice indices of PyAudio"
txb = "are not ALSA device numbers."
txc = "\nThe default sampling rate (dfs)"
txd = "may not be the best choice."
print(txa,txb,txc,txd)
print("\n Input devices of PyAudio")
print("----------------------------------")
for i in range(dvn):
    dev = pa.get_device_info_by_index(i)
    nam = dev['name']
    chs = dev['maxInputChannels']
    sam = dev['defaultSampleRate']
    if chs > 0:
        print("Index",str(i)+",",nam+",",
chs,"channels, dfs:", sam)
print("\nOutput devices of PyAudio")
print("----------------------------------")
for i in range(dvn):
    dev = pa.get_device_info_by_index(i)
    nam = dev['name']
    chs = dev['maxOutputChannels']
    sam = dev['defaultSampleRate']
    if chs > 0:
        print("Index",str(i)+",",nam+",",
chs,"channels, dfs:", sam)
pa.terminate() # final cleanup