On windows platform the following code will return a partial string for the deviceName of all audioOutput devices.

QAudioDeviceInfo deviceInfo(QAudioDeviceInfo::defaultOutputDevice());
auto outputDevices = deviceInfo.availableDevices(QAudio::Mode::AudioOutput);
for (auto device : outputDevices)

For example in my system I have a Logitec headset.

• Using native windows apis the deviceName returned is following:
  "speakers (logitech usb headset h540)"
• Using QAudioDeviceInfo api the deviceName returned is following: "Speakers (Logitech USB Headset"

Notice the string is partial and the end is cropped, the same behaviour happens for all devices including AudioInput and AudioOutput.