Sound cards are necessary for nearly all CD-ROMs and have become commonplace on modern personal computers. Nearly all sound cards support MIDI, a standard for representing music electronically. In addition, most sound cards are Sound Blaster-compatible, which means that they can process commands written for a Sound Blaster card, the de facto standard for PC sound. FM Synthesis mimics different musical instruments according to built-in formulas. Wavetable Synthesis relies on recordings of actual instruments to produce sound.
Wavetable synthesis produces more accurate sound, but is also more expensive.
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