In a clean Python 3.12 Windows environment, I installed pycaw library as follows:
comtypes==1.4.11
psutil==7.0.0
pycaw==20240210
And my Windows environment is as follows:
I executed the same code uploaded at https://github.com/AndreMiras/pycaw/blob/develop/examples/audio_endpoint_volume_example.py and got the following error because device.FriendlyName failed to run.
Traceback (most recent call last):
File "C:\Users\3NR1QUE\Downloads\test\audio_endpoint_volume_example.py", line 21, in <module>
main()
File "C:\Users\3NR1QUE\Downloads\test\audio_endpoint_volume_example.py", line 10, in main
print("Device found: %s" % device.FriendlyName)
^^^^^^^^^^^^^^^^^^^
AttributeError: 'POINTER(IMMDevice)' object has no attribute 'FriendlyName'
Instead of directly getting FriendlyName property, the code works without any error like above by getting its 'FriendlyName' manually like below.
from comtypes import CLSCTX_ALL
from ctypes import cast, POINTER
import warnings
from pycaw.pycaw import AudioUtilities, IAudioEndpointVolume
def get_friendly_name(dev) -> str:
with warnings.catch_warnings():
# suppress deprecation warning for GetAllDevices
warnings.simplefilter("ignore", UserWarning)
# get the unique endpoint ID
dev_id = dev.GetId()
# AudioUtilities.GetAllDevices() yields AudioDevice wrappers
for d in AudioUtilities.GetAllDevices():
if d.id == dev_id:
return d.FriendlyName
return "Unknown Device"
def main():
device = AudioUtilities.GetSpeakers()
name = get_friendly_name(device)
print(f"Device found: {name}")
# now get the endpoint-volume interface
interface = device.Activate(
IAudioEndpointVolume._iid_, CLSCTX_ALL, None
)
volume = cast(interface, POINTER(IAudioEndpointVolume))
print("Muted?:", "Yes" if volume.GetMute() else "No")
print("Level (dB):", volume.GetMasterVolumeLevel())
print("Range (dB):", volume.GetVolumeRange())
print("Setting to -20 dB…")
volume.SetMasterVolumeLevel(-20.0, None)
print("New level:", volume.GetMasterVolumeLevel())
if __name__ == "__main__":
main()(Output I obtained after executing the above code)
Device found: 스피커 (Realtek(R) Audio) (Note: "스피커" means "Speaker" in Korean. Just language difference)
Muted?: No
Level (dB): -5.547224998474121
Range (dB): (-65.25, 0.0, 0.03125)
Setting to -20 dB…
New level: -20.0
Anyway, whether to use my example code or not, I think you should modify the current example code.
In a clean Python 3.12 Windows environment, I installed pycaw library as follows:
And my Windows environment is as follows:
I executed the same code uploaded at https://github.com/AndreMiras/pycaw/blob/develop/examples/audio_endpoint_volume_example.py and got the following error because
device.FriendlyNamefailed to run.Instead of directly getting
FriendlyNameproperty, the code works without any error like above by getting its 'FriendlyName' manually like below.(Output I obtained after executing the above code)
Anyway, whether to use my example code or not, I think you should modify the current example code.