AMR lets manufacturers create motherboards without analog I/O functions. Instead, these functions are placed on a separate card--with the codec chip--which plugs in perpendicular to the motherboard so that the motherboard and "riser" card form a right angle.

Separating the analog I/O functions from the motherboard means higher audio quality and reduced production delays. Prior to the AMR specification, motherboard analog I/O functions went through a lengthy FCC and international telecom certification process.

Intel Press Release Announcing AMR
New Specifications Ease Audio/Modem Integration onto Motherboard to Reduce Cost and Ease Certification.

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