This week, I was able to get the first functional iteration of the left-right subtraction working. After some testing, I found that it is attenuated almost as much as I had hoped originally, however, it is acceptable and overpowered by the instrumental track. This update means that now our UI is capable of playing spotify tracks throught the vocal removal system. In the coming weeks I am continuing to make tweaks in order to make the overall output volume significantly louder, as the current system does not output a strong enough signal.
The largest remaining task for me is coming from integrating the bluetooth receiver system and connecting the microphone signal to the speaker.