DOSBox contains built-in emulation of the Gravis Ultrasound (GUS), one of the best sound card for IBM PC. The Gravis Ultrasound was unique at the time of its launch (1992) with its use of `wavetable` sample-based music synthesis technology on the IBM PC platform — the ability to use real-world sound recordings rather than artificial computer-generated waveforms to base a musical instrument on; so a piano sounds like an actual real piano, a trumpet like an actual trumpet, etc...
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