Sync Voicemeeter's gain control to Windows volume control

README.md

Install

pip install psutil pycaw future toml
git clone https://github.com/Freemanium/voicemeeter-remote-python
cd voicemeeter-remote-python
pip install .

Modify line 16 of voicemeeter/remote.py

self.delay = 0.015 if delay is None else delay

Modify lines in sync.py

# target voicemeeter edition ('basic', 'banana' or 'potato')
vb_kind = 'banana'
# target input device index (left to right, start with 0)
ch_idx = 4
# Define mapping range (default: -60 ~ +12 dB)
vb_vo = max(min(round(sys_vo*72-60),72),-60)

Run

python sync.py

Demo

sync.py

#!/usr/bin/env python
#coding:utf-8
# Author:  Sg4Dylan --<sg4dylan#gmail.com>
# Created: 12/24/2020

from ctypes import POINTER, cast
from comtypes import CLSCTX_ALL
from pycaw.pycaw import AudioUtilities, IAudioEndpointVolume
import voicemeeter
import time


vb_kind = 'banana' # target voicemeeter edition ('basic', 'banana' or 'potato')
ch_idx = 4         # target input device index (left to right, start with 0)
voicemeeter.launch(vb_kind)
devices = AudioUtilities.GetSpeakers()
interface = devices.Activate(
    IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
volume = cast(interface, POINTER(IAudioEndpointVolume))


def get_system_volume():
    return volume.GetMasterVolumeLevelScalar()


with voicemeeter.remote(vb_kind) as vmr:
    last_vo = None
    while True:
        sys_vo = get_system_volume()
        vb_vo = max(min(round(sys_vo*72-60),72),-60)
        if vb_vo != last_vo:
            vmr.inputs[ch_idx].gain = vb_vo
            last_vo = vb_vo
        time.sleep(1)
 

in 'pip install psutils pycaw future toml' it should be psutil instead of psutils. Other than that, it works!

also for other people trying to get this working, set ch_idx = 0 on line 14 (just like it says to do in the sync.py, which I missed at first) and then go up one at a time till it's syncing the right device (2 was the magic number for me!)