...A DSP is still a garbage in-garbage out device, but seeing what people have done with the limits of 4 8-bit channels then you can only wonder where we would have been...
So true. This topic of what Amiga sound could have been seems to have cropped up many times.
With careful attention to recording (microphone selection, sampling rate, clipping, source quality, etc), the Amiga, as released with 8-bit sound, was capable of very impressive reproduction. The samples available from cover disks, Aminet, etc, ranged in quality from really bad to quite good. It seems to me that Amiga's native sound ability didn't get a fair shake over the years. Several channels of true 16-bit would certainly have been technically better, but, the sound capabilities that shipped in all Amigas was still outstanding, especially when coupled with good sampling equipment and technique AND then played thru a capable amp and speakers.