I’d like to build a 4 in 4 out audio matrix mixer controllable by Arduino. The purpose is ‘no input’ style feedback generation using graphic eq guitar pedals patched between the outputs and inputs. I’d be using Maxuino to send attenuation ramps and routing commands from Max/MSP to the Arduino.
Any suggestions and/or pointers to potential challenges would be appreciated!
The mixer would:
— allow routing of any combination of outputs to any combination of inputs
— allow attenuation of the signals in the feedback paths
ADC: UDA1361TS http://www.nxp.com/documents/data_sheet/UDA1361TS.pdf
DAC: UDA1352TS http://www.nxp.com/documents/data_sheet/UDA1352TS.pdf
Matrix routing: MAX4549 via SPI library http://datasheets.maxim-ic.com/en/ds/MAX4548-MAX4549.pdf
Attentuation: AD5206 via SPI library http://www.analog.com/static/imported-files/Data_Sheets/AD5204_5206.pdf