Which of the following can be inferred from the passage about the digital approach to the processing of sound?
A.
It was developed in competition with wax-cyclinder recording technology.
B.
It has resulted in the first distortion-free playback system.
C.
It has been extensively applied to nonmusical sounds.
D.
It cannot yet process music originally recorded on analog equipment.
E.
It is not yet capalbe of reprocessing old recordings in a completely distortion-free manner.