[sdiy] UK meet up, intro, and a wavetable module plan

[Paul Maddox]

David

> That was the fiasco I was thinking of. The pub should be effortless and pleasant!

yeah "I'm not serving groups of five or more go away", cheery fella he was.

> Yes, though remember that I want to keep the parts count low and I might want to do other neat stuff later. The FPGA seems more like insurance than anything. Plus I've never built anything using one so it might be fun. :)
>

as you wish, so you'll be needing an FPGA, an SPI EEPROM, a 3.3V
regulator and some TTL level shifters, unless you do all the digital
portion at 3.3V.
Chris Strellis is your man for anything FPGA in the UK, there's a few
FPGA guru's on here too.

>>> - 16 or so wavetables of 16 samples each (8-bit is good since the goal is gunge)
>>
> Yeah, 16 is pretty low, agreed. Prototyping the thing in Max/MSP or whatever would give me a good idea of the sweet spot. My goal isn't really full sample playback. But it would be fairly easy to have the wavetable size be adjustable...not under voltage control but by rebuilding the software.
>

depends what you by sample :)
16 tables, with 16 waves and each wave being 256 8bit samples would be
a fine start.
Being able to reduce the wave width by masking off LSBs.
The Monowave does this, when you hit the "derez" it lowers the wave
width from 256 samples to 64 samples.

Paul