Lowest Mac Volume Still Too Loud? November 11, 2016 by bjokib Did you know you can lower the volume on your Mac even more? Without making it completely silent? If you hold the shift and alt key while pressing the volume adjust key it will decrease/increase the audio by ¼ step instead. Share this page, if it was helpful! Burn ISO Images With Built-In Burn Mac SoftwareDecember 21, 2010In "Apple"Stellar Phoenix Mac Data RecoveryMay 7, 2018In "Apple"14 Easy Ways To Speed Up a Painfully Slow MacMay 21, 2019In "Apple"