Phase Shifting with DSP using the Teensy

In this video I do some DSP Phase shift processing with the Teensy 4.0. Some other DSP videos I have: STM32 DSP: https://www.youtube.com/watch?v=jvmejxsQzn4&t=613s ESP32 DSP: https://www.youtube.com/watch?v=oKbi1XitBvI&t=1475s Big shout out to Charlie Morris' channel for all the inspiration. Lots of great stuff on his channel https://www.youtube.com/channel/UCSNPW3_gzuMJcX_ErBZTv2g The Teensy and the Audio Shield https://www.pjrc.com/store/teensy40.html https://www.pjrc.com/store/teensy3_audio.html Correction: I meant to say "I2S" not I2C Here's the Iowa Hills software site http://www.iowahills.com/ I am using the Hilbert Filter from this page http://www.iowahills.com/8DownloadPage.html Note I missed out a critical parameter in the Hilbert filter configuration and that is you have to put in the desired phase offset in the "Phase Add" field (i.e. +45 and -45) Here's some DSP theory pages. The convolution algorithm https://shulgadim.blogspot.com/2012/01/fir-filter-implementation.html A good reference source https://www.dsprelated.com/freebooks/filters/ Finally the code and coefficients https://github.com/thaaraak/TeensyDSP