High signal-to-noise ratio 

The analog audio recording form is a continuous sound signal, which is affected by noise such as magnetic tape during the recording and playback process

Low distortion

In the process of analog audio recording and playback, the nonlinearity of the magnetic head will introduce distortion, and measures such as AC bias recording must be taken, but distortion still exists.

Good repeatability

The sound quality of digital audio equipment will not deteriorate after multiple copies and replays.

Low shaking rate

The digital audio playback system does not require a precise mechanical system like in analog recording, as the instability of the rotating system and driving system will not cause shaking due to the time base correction circuit.