I've made an arduino based audio spectrum analyzer & it requires audio input from a music player/laptop/phone earphone out.
I've tested this with earphone out from my audio player (Yamaha MCR-B142) and it worked fine.
Sadly when I connect earphone out to the Arduino, sound stops coming from speakers.
I want to listen to audio from music player while the signal goes to the Arduino. I understand this is the nature of the earphone out. So I tried to get output from speaker out.
But the amplifier (YDA164 amplifier IC) has differential outs and I'm confused about getting a single ended output from that.
Amplifier maximum output is 15W @ 6 ohms.
What I want is to get an earphone out level signal from the music player.
Please assist me as I've spent so many hours to reach thus far.
Let me know if the information is unclear.
I learned lot of things through this project.