A plug-in adds multimedia functions to your computer. As the name implies it plugs in to your computer and allows for sound, video, and interaction with images.
The sampling rate shows how often sound is sampled. The more it is sampled, the better it sounds. Compact discs are recorded at a rate of 44,100 samples per second, more commonly referred to as 44.1 KHz. For a web file, the maximum sampling rate suggested for use is about 22 KHz.
The sampling resolution is the number of bits assigned to each sample. The more bits there are, the better the quality is. An 8-bit resolution is almost always acceptable for the web; 16-bit is too large.
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