Automatic acoustic management

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Automatic Acoustic Management , or AAM for short , is a technology that enables the noise level of a hard disk drive to be adjusted .

overview

The read / write head mechanism is positioned either faster and thus louder or - if the opposite is true - quieter and slower. AAM thus restricts itself to the access noise without affecting the idle acoustics. The setting is made by special software in the hard disk itself and remains in effect until the next change. A significant reduction in noise can often be achieved with a small loss of power.

AAM was introduced in 2002 with the ATA -6 standard as an optional feature. Some current models do not do this for cost or legal reasons. Certain techniques relevant to AAM are protected by patents from Convolve (US 6314473) and Seagate (US 6704159).

AAM was declared obsolete in the ATA ACS-2 standard ( T13 / 2015-D) revision 4a of December 2010.

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