other than less noise, wat advantages does digital have over analog?

The three most common advantages I have come across which apply to the majority of situations:

- An analogue circuit cannot easily be adjusted once it had been made. A digital circuit comprising of a programmable microprocessor just needs to be reprogrammed.

- Analogue components are subject to variation with temperature and age. A digital component does not change with time (until it fails completely)

- Analogue circuits can take up a large amount of space on a PCB if they are complex. A digital circuit, again with a microprocessor, can normally perform the same function is its analogue equivalent in just a fraction of the size.

Presuming that you are talking about sound, digital has the advantages:

- transmission of digital signals allows for exact transmission of the information (sound) without error, even in a noisy transmission regime. Analog signals can only approximate that goal. For instance, an LP, once used a few times, looses high freq sounds, while a CD will not do so until the CD is practically destroyed.

- Digital filtering of a signal can be much more selective and exact than can the analog equivalent.

- Digital media are inherently less error prone than the analog equivalent.

- Practical consideration - everything is going to digital. Those remaining with analog "for old times sake" will encounter, eventually, higher prices and non-availability of media and equipment.