sound card

(redirected from Audio processing unit)
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sound card

n. Computers
An expansion card that processes and converts audio signals. Also called audio card.
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The nForce MCP integrates an Audio Processing Unit (APU) with a Dolby(TM) Digital 5.
NVIDIA's award-winning nForce 620-D, 615-D, 420-D and 415-D Platform Processors are the latest addition to the company's nForce core-logic product family, offering a wide variety of innovative features, including integrated Graphics Processing Units (GPUs), Audio Processing Units (APU), and networking technologies.