I am currently able to feed a 3.5 mm aux cable into my Arduino and read its values, but I'm not able to hear the sounds being played. I wanted to solve this problem by using an audio splitter and adding speakers. However, when I read values from my 3.5 mm aux cable attached to the audio splitter, I'm only getting 0s. How can I fix this problem?
The source of the audio is from my laptop and it is a stereo signal. The splitter is also has a stereo signal. The Arduino is reading the signal in the A0 port and its being powered from my laptop.