I'm trying to set the microphone volume to 100% using the pycaw library in Python. However, I'm encountering an AttributeError when attempting to use the Activate method on an AudioDevice object. Here are the details:

Code:

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

def set_microphone_volume(volume_level):
    devices = AudioUtilities.GetAllDevices()
    print("Found devices:")
    for device in devices:
        print(f"Device name: {device.FriendlyName}")
        if any(keyword in device.FriendlyName for keyword in ["Microphone", "Mikrofon", "Kopfhörermikrofon"]):
            try:
                interface = device.Activate(IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
                volume = interface.QueryInterface(IAudioEndpointVolume)
                volume.SetMasterVolumeLevelScalar(volume_level / 100.0, None)
                print(f"Volume for {device.FriendlyName} set to {volume_level}%")
            except Exception as e:
                print(f"Failed to set volume for {device.FriendlyName}: {e}")

while True:
    set_microphone_volume(100)
    time.sleep(5)

Virtual Environment Setup:

Create a virtual environment: python3 -m venv mic_volume_venv

Activate the virtual environment: .\mic_volume_venv\Scripts\activate

Upgrade pip and setuptools: python -m pip install --upgrade pip setuptools

Install the required modules: python -m pip install pycaw comtypes

Error:

Traceback (most recent call last):
  File "C:\path\to\StaticMicVolume.py", line 43, in <module>
    set_microphone_volume(100)
  File "C:\path\to\StaticMicVolume.py", line 36, in set_microphone_volume
    interface = device.Activate(IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
AttributeError: 'AudioDevice' object has no attribute 'Activate'

Any help or suggestions would be greatly appreciated!

I'm trying to set the microphone volume to 100% using the pycaw library in Python. However, I'm encountering an AttributeError when attempting to use the Activate method on an AudioDevice object. Here are the details:

Code:

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

def set_microphone_volume(volume_level):
    devices = AudioUtilities.GetAllDevices()
    print("Found devices:")
    for device in devices:
        print(f"Device name: {device.FriendlyName}")
        if any(keyword in device.FriendlyName for keyword in ["Microphone", "Mikrofon", "Kopfhörermikrofon"]):
            try:
                interface = device.Activate(IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
                volume = interface.QueryInterface(IAudioEndpointVolume)
                volume.SetMasterVolumeLevelScalar(volume_level / 100.0, None)
                print(f"Volume for {device.FriendlyName} set to {volume_level}%")
            except Exception as e:
                print(f"Failed to set volume for {device.FriendlyName}: {e}")

while True:
    set_microphone_volume(100)
    time.sleep(5)

Virtual Environment Setup:

Create a virtual environment: python3 -m venv mic_volume_venv

Activate the virtual environment: .\mic_volume_venv\Scripts\activate

Upgrade pip and setuptools: python -m pip install --upgrade pip setuptools

Install the required modules: python -m pip install pycaw comtypes

Error:

Traceback (most recent call last):
  File "C:\path\to\StaticMicVolume.py", line 43, in <module>
    set_microphone_volume(100)
  File "C:\path\to\StaticMicVolume.py", line 36, in set_microphone_volume
    interface = device.Activate(IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
AttributeError: 'AudioDevice' object has no attribute 'Activate'

Any help or suggestions would be greatly appreciated!

• python
• windows
• attributeerror
• comtypes

1 Answer 1

You need to change this:

try:
   interface = device.Activate(IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
   volume = interface.QueryInterface(IAudioEndpointVolume)
   volume.SetMasterVolumeLevelScalar(volume_level / 100.0, None)

To this:

try:
    #interface = device.Activate(IAudioEndpointVolume._iid_, CLSCTX_ALL, None)
    volume = device.EndpointVolume.QueryInterface(IAudioEndpointVolume)
    volume.SetMasterVolumeLevelScalar(volume_level / 100.0, None)