[sdiy] Audio Weaver for ST Discovery boards -Free!

[rsdio at audiobanshee.com]

In my experience, Digi-Key is the most expensive source for anything. I only go there when Mouser, Jameco, and everyone else is out of stock or don't even list a part.

That said, Texas Instruments has a wide range of evaluation boards, including some very expensive ones. I remember looking at one around $1,500 that I had to pass on. I always go directly to the manufacturer to discover the evaluation boards, because the manufacturer will have the most information and full support for their product. Texas Instruments and Microchip have their own web stores, so it's easy to buy direct from the manufacturer.

You might want to look at the $49 TMDX5505EZDSP. It's a good choice for a USB-powered DSP, although Texas Instruments has faster DSP chips for those situations where more wattage is available.

Other options are the $89 TMDX5502EZDSP or the $99 TMDX5535EZDSP.

Don't be distracted by the fact that these are 16-bit DSP chips; they have 40-bit internal accumulators with lots of precision and headroom for audio processing - more than enough for 24-bit audio. Of course, fixed-point processing can be a challenge, but it makes perfect sense in the cases where you need low power consumption.

Brian


On May 12, 2017, at 2:52 PM, Scott Gravenhorst <music.maker at gte.net> wrote:
> Hmm.  Well, since I am going to soon receive the F7 Discovery board
> soon, I will probably wind up determining if that is simply sufficient
> for my goals - those are mainly to support a polysynth with high
> quality sound with special effects (reverb, chorus, etc) and minimum of
> 16 voices of polyphony with what most would consider a robust feature
> set.  The TMS320 boards at Digikey I saw were all in the $400 range,
> but maybe I have no foo in my google :p …