For our project our goal is to acquire body sounds from an acoustic stethoscope and do digital 1) filtering 2) noise reduction (static + heart sounds), and 3) amplifying of signals. The frequencies we're trying to detect ranges from 20 Hz to 2kHz.
Here is a block diagram of our plan so far
ADC -> Bandpass Filter -> noise reduction (we don't know how to do this yet) -> amplify -> DAC.
Do you think this is possible and would editing the available libraries be enough?
**With regards to filters, I've been seeing that the input and output keep on using the i2s. How do we use the same input (i2s) if we don't have the audio board?
Please do suggest any possible methods/libraries/steps on how to go about this since we're new to coding and to teensy in general. thanks!
Here is a block diagram of our plan so far
ADC -> Bandpass Filter -> noise reduction (we don't know how to do this yet) -> amplify -> DAC.
Do you think this is possible and would editing the available libraries be enough?
**With regards to filters, I've been seeing that the input and output keep on using the i2s. How do we use the same input (i2s) if we don't have the audio board?
Please do suggest any possible methods/libraries/steps on how to go about this since we're new to coding and to teensy in general. thanks!
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