View source for Digital Signal Processing on Embedded Xinu

'''Project Description'''
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Embedded Xinu is an educational embedded operating system that is used primarily to teach undergraduate students about basic operating system concepts. Embedded Xinu is being ported to run on a multicore platform (Raspberry Pi 3 B+). This project aims to use the operating system to perform some basic signal processing with audio signals.


'''Tentative Milestones'''
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*Get audio output from built-in headphone jack on the Pi
:- Be able to generate simple tones first
:- Afterwards, be able to generate sound from audio data, such as a song, for example
*Receive audio input
:- Can be done with off-board circuitry, but utilizing the available on-board facilities is preferred
:- There are no built in ways to receive audio input
:- Have to use a USB microphone
::* Requires a proper driver to be written
*Signal Processing algorithms between input and output
:- Can be anything
:- Basic ideas would be doing a Fourier analysis
:- Another idea would be to implement simple effects, such as an echo effect