Does anyone know of a DSP that is cheap and has 8+ inputs (8 I2s mics) and that can perform beam forming calculations? I'm super new to circuit design so preferably one thats beginner friendly. 

Kind of side question, will I need to purchase a development board as well to make it work? 

I've found a few options such as [this one][1] but it doesn't have enough pins, while [this one][2] seems like it may be overly complicated as well as the development board seems to cost $700 I think.

Thanks


  [1]: http://www.ti.com/lsds/ti/processors/dsp/c5000_dsp/c55x/overview.page
  [2]: http://www.analog.com/en/products/processors-dsp/sigmadsp-audio-processors/adau1446.html#product-overview