Plays a tone when some of specified keys are pressed.

sidetonePlayer.py

# App plays a tone when some of specified keys are pressed. It works in the background as well.
# Best used with two sound cards (for Morse practice Zoom sessions for example).
# TODO: Add cosine shaping and remove clicking noise.

# Requirements:

# pip3 install pynput
# pip3 install pysinewave


from time import sleep
from pynput import keyboard
from pysinewave import SineWave

sinewave = SineWave(pitch = 17, decibels = -30) # Set to 692 Hz. Play with these two parameters for different tone.

def on_press(key):
        if (str(key) in ["Key.ctrl_r", "Key.space", "Key.right"]):
            sinewave.play()

def on_release(key):
    sinewave.stop()
    if key == keyboard.Key.esc:
        # Stop listener
        return False

# Collect events until released
with keyboard.Listener(
        on_press=on_press,
        on_release=on_release) as listener:
    listener.join()
    sleep(0.01)