DSP Digital Signal Processing basics

marcwolfmarcwolf
edited June 2015 in Software

[Original post title: Interpreting data from 8 Bit Boards]

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Hi.  My Application is EMG based.
Ok  I have read the information on the data packet re the  count, 8 x 32 bit values, and then 3 x 16bit for the accelerometer.
And I have read what is sent to the uP/ADS1299 as the command set.

What puzzles me with the Processing GUI is firstly

1.  There is no frequency value being passed back so how can we do a voltage/frequency FFS plot.

2. How are filters applied to the data i.e.  Notch Filters.

I would like to do some preprocessing of the values to give a  0-255 value for each channel which is a the average of every 10 samples, filtered around the 20 to 40hz mark. But nothing I can see is a the frequency.

Many thanks
Dave



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