When you sing along with a song what does it mean when you hear ringing sound?

The ringing sound you hear when singing along with a song may indicate that you're experiencing a phenomenon called "ear ringing" or tinnitus, which can occur due to exposure to loud music. It can also be a result of your voice resonating with the music, creating a feedback effect. If the ringing is persistent or bothersome, it might be worth consulting a healthcare professional to rule out any underlying issues.