QQ voice message can be heard, but no sound in the classroom. Please check if you are using devices correctly:
Check if the microphone is mute,
Make sure you are correctly using the microphone:
Start the device in the audio editor, and forbid other operations: Right click the speaker, and choose “audio editor”, and double left click the device with green check mark.
Choose levels and see if horn is disabled or not
Enable and click yes, and see if the volume bar moves
If there are still no sound, you need to update the audio driver:
Right click on the computer (my computer, this computer), choose manage:
- Right click this computer, and choose manage
- Right click Sound video and game controller
- Choose update
After updating the driver, you must restart the computer to make it be effective.
You must first exit the classroom before fixing any problems with the microphone.
If you cannot install the driver inside the management device, you can use the third-party driver software to install.
Mac users with windows systems must not update the driver. Switching the system and restart the computer, then it will be fine.