Lyra-Remote

Dump of my research when reverse engineering an ActiveX D&R Lyra mixer remote control application, to make a clone that can run on a modern OS.

I dont remember the model name of the mixer, but i remember it looking like this.

This was developed years ago, and the mixer has since passed on. Therefore I cannot develop on this project anymore, and the source code is published mostly as was when I made it. Comments have been translated, and new comments I have made is marked FUTURE:.

Project files

main.py

Starts a remote control application. It can be compiled into a .exe file (See the makefile)

lyramixer.py

This library handles communication with the mixer.

# This is a short example written on publish.
# It has not been tested.
from lyramixer import Mixer, source_names_lookup_table
import time
import logging
import time

mixer_ip = "XXX.XXX.XXX.XXX"
mixer_port = 20000

logging.basicConfig(
    level=logging.DEBUG
)

def none(a="", b="", c=""):
    pass

callbacks = {
    "set_channel_label": none,
    "set_channel_lights": none,
    "set_fader_value_percentage": none,
    "set_crm_value_percentage": none,
    "set_small_button": none,
    "set_channel_volume": none,
    "set_master_volume": none,
    "set_channel_eq_hf": none,
    "set_channel_eq_mf": none,
    "set_channel_eq_lf": none,
    "set_channel_gain": none,
    "set_channel_source": none,
    "set_channel_pan": none,
    "set_channel_aux": none,
    "set_channel_dyn": none
}

m = Mixer(mixer_ip, mixer_port, callbacks)

m.send_init_command() # Makes the mixer send us everything.
time.sleep(1) # Wait for the mixer to send its state
for c in m.channels:
    print(c.label, "-", source_names_lookup_table[c.source]) # Print the label of every channel

m.send_channel_button_press(0, 1) # Press the ON button on the first channel

The buttons are poorly documented. It should suffice to search in mixergui.py inside MixerWindow.__init__() for what ids the buttons use.

mixergui.py

A simple gui that shows and calls functions inside the Mixer class. For some unknown reason my young dumb self placed the callbacks from lyramixer.py inside main.py

I didnt know then how to set an icon, and was having issues not finding a solution that worked for both running normally and packaged exe. It will most likely crash here.

mqtt.py

This was a short experiment to connect the mixer to homeassistant.

Its purpose would be to turn the lights red outside the studio if the microphone was live.