Why is the audio not working?

A few days ago I turned on my acer aspire v5 122p-0408 and the audio wasn't working. I tried plugging in my headphones and using a bluetooth speaker to see if it was just a problem with the systems speakers. I still wasn't getting any audio, so I tried looking up solutions online. I tried updating my driver, restarting my computer and running the troubleshooter. Nothing worked and I don't know what else to try.