Teensy 4.1 Inputs and Outputs

A

ajolly123

New member
Hi

I am working on an ANC project and am looking to use a Teensy development board. The basic requirements are for the board to take in two separate microphone signals, run an algorithm (already developed) to create a waveform, and output the wave to a speaker. I have read through the Teensy 4.1 dev board features and it says it can only accept a single analogue audio signal. Is this true and if so, what would be the best way to get around this? Would I have to convert them to digital on a separate board, then input them as digital signals? If so, are there any Teensy products that would work for this?

Thanks for any help you can offer.

Alex
 
Do you mean the audio adapter? That has one microphone input, but two two line inputs. There are other options for interfacing to microphones, and yes that would be a separate board - any I2S compatible audio chip pretty much can work.
Or you could have external preamps for the microphones and feed into the line inputs of the audio adapter.
 
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