I have an issue with my audio. The audio increases by itself. No water damage since the laptop, is never near any liquids nor in a humid environment. What may be the cause of this audio issue, hardware or software? If else, how can this issue be resolved.
OS X El Capitan
Version: 10.11.6 (15G1004)
MacBook Air (13-inch, Mid 2013)
Processor: 1.3 GHz Intel Core i5
Memory: 4 GB 1600 MHz DDR3
Graphics: Intel HD Graphics 5000 1536 MB
MacBook Air, OS X El Capitan (10.11.6)
