That shit would get pirated. Also, the DSP's form Analog Devices do such a better job at processing sound than your average Intel architecture could. I used to recruit DSP engineers and placed a few Analog Devices folks. They do some really ridiculously amazing work. Intel's architecture is for general computing and just can't match a DSP for the kind of performance that a music rig calls for.
Digital signal processor - Wikipedia, the free encyclopedia
"Hardware features visible through DSP instruction sets commonly include:
Hardware modulo addressing, allowing circular buffers to be implemented without having to constantly test for wrapping.
A memory architecture designed for streaming data, using DMA extensively and expecting code to be written to know about cache hierarchies and the associated delays.
Driving multiple arithmetic units may require memory architectures to support several accesses per instruction cycle
Separate program and data memories (Harvard architecture), and sometimes concurrent access on multiple data busses
Special SIMD (single instruction, multiple data) operations
Some processors use VLIW techniques so each instruction drives multiple arithmetic units in parallel
Special arithmetic operations, such as fast multiply–accumulates (MACs). Many fundamental DSP algorithms, such as FIR filters or the Fast Fourier transform (FFT) depend heavily on multiply–accumulate performance.
Bit-reversed addressing, a special addressing mode useful for calculating FFTs
Special loop controls, such as architectural support for executing a few instruction words in a very tight loop without overhead for instruction fetches or exit testing
Deliberate exclusion of a memory management unit. DSPs frequently use multi-tasking operating systems, but have no support for virtual memory or memory protection. Operating systems that use virtual memory require more time for context switching among processes, which increases latency."
