sound on my MacBook pro suddenly low

The sound on my MacBook Pro is suddenly low when turned all the way up.  Of course I have set F12 at its highest and the same in Settings-Sound. Suggestions?


MacBook Pro with Retina display, macOS High Sierra (10.13.3)
2018-02-06 Add comments
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    Has invited:

    howapple - hello

    Favor from:


    1. Reset NVRAM/PRAM couple of times.  http://support.apple.com/kb/PH18761

           

    2. Reset SMC. Choose the method for “If the battery is non-removable”.

        https://support.apple.com/en-us/HT201295

    2018-02-06 0 0
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