Output+Hardware+(Sound)

Introduction
As well as being an audio input device, the sound card also handles audio output, converting the digital signals back to audio so that they can be output to headphones or speakers.

Sound Card Review
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Task (Int 2)
Research 3 different sound cards. Copy and complete the table below for each one.



Task (Higher)
Investigate the following aspects of a graphics card:
 * Sony and Phillips Digital Interconnect Format (SP/DIF)
 * Digital Signal Processor (DSP). [|This page may help], especially with the diagram midway down the page.
 * Digital-Analogue conversion (DAC)

In a blog post write a short description about each of the above, explaining its purpose in terms of sound output.