Curtis said:
Dale116dot7 was working on a DIY DSP reverb, but I believe he came to the conclusion that while he would continue to develop it, it would be cheaper to buy something off the shelf than to build something. Maybe he'll chime in?
There's the SpinFX FV1 self-contained DSP chip that's supposedly really easy to work with, but I don't imagine it would produce anything to scare off Lexicon. I have one in my parts drawers, but I haven't played with it yet. Small Bear have them in stock if you're feeling game.
Actually, FV1 is IMHO fastest and most troublefree way to get into DIY DSP. Dale, who has worked exstensivly with Wavefront chip (as FV1 with less features), claims that this architecure is about equvalent in dsp power to Lexi 224. See this : http://www.gearslutz.com/board/geekslutz-forum/380233-reverb-subculture.html for a bit of Dales' work.
IMO FV1 has numerous benefits:
-On board stereo adc and dac
-Completely streamlined architecture for audio dsp work. This means you dont have to deal with comunicating with peripherials, readin pots, setting onboard subblocks like clock dividers and stuff. You have 128 instructions per sample that are sequentially executed, and which deal only with dsp.
-Some great instructions on board. For instance, you have single instruction chorus, log and antilog, wich could takeaway as much as 100 clock cycles on x86 architecture for example. Also dedicated single instructions for filtering (with posslibly two instruction second order filter).
-You have to work with asembly language but it is easy to use.
-You have 32Kwords of dedicated delay memory on board, with free single cycle access. Memory is based on reduced float format, some might consider this bug, I would consider it as feature (gritty stuff).
my 2 cents
Urosh
edit: for those who dont know, here is website: http://www.spinsemi.com/knowledge_base.html