Well, that would be interesting! It maybe could not fully replace a good soundcard (latency, channels, ..) but to enjoy music it may be better than a lot of on-board chips!
Someone already
asked it on the iAudiophile forum but nobody answered.
So what does the general implementation of the I/O's look like? What are the usual hardware specific limits?
Let's take the Cowon D2+ as example (which is my player): it has an USB interface and a TV out.
The USB Interface may be just an IC, which is directly connected to the SD- or NAND controller, I can imagine. That would also be the reason for audioplayback stopping at USB plugin. The interface to the computer could be hard to achieve if so (but it may still be possible to write the sound on-the-fly to the disc while it is played).
However, there is no USB IC mentioned on the
D2 info page. Ideally it would be directly connected to the processor and the USB functions implemented by software
And what about the "TV Out"? Is it a one-way? The connector even looks like a IEEE1394 connector!
In the unlikely case it would be connected to reasonably general processor pins, it could maybe be formed to a computer interface by software.
I would really appreciate if my D2 could supply my laptop with good sound