Since the official AVITA website may not provide direct downloads for all legacy models, use these methods:
To confirm the exact audio chip on your NE14A2, use: avita ne14a2 sound driver
Here is a summary of the problem:
Look for any items labeled Realtek , Intel , or Audio . Check the boxes next to them and click . Troubleshooting Common Audio Problems on Avita NE14A2 Since the official AVITA website may not provide