The Physics Behind Amazing Singing (Why Some People Sound Better Than Others)

Why Some People Sound Better Than Others?

Saumya Wagh

1/21/20252 min read

Okay so I was super curious about the physics of singing...

Have you ever wondered why some people sound amazing when they sing while others (no offense to my anyone) sound like they're strangling a cat? I got totally obsessed with this question after one of my music sessions with my Indian classical music teacher. I decided to delve deeper into this problem

It's literally about the waves from your voice!

So, in physics terms, singing is all about sound waves:

  • Frequency = pitch: When someone hits the right notes, their vocal cords are vibrating at exactly the right frequency. Like, an A note is exactly 440 vibrations per second! Some people can naturally control these tiny vibrations better than others.

  • Clean waveforms vs. messy ones: Good singers produce super clean, regular sound waves. You could literally make out the difference between my voice and our music teacher's. Her waves are so smooth and regular while mine were getting there!

  • Harmonics matter so much: This was the coolest physics part! Every note you sing isn't just one frequency - it's a main frequency plus all these other higher frequencies called "overtones" or "harmonics" that give your voice its unique color. Good singers have stronger, more balanced harmonics!

Physics explains why some people sound better naturally

  • Resonance is everything: It's when something vibrates at just the right frequency to make something else vibrate really strongly. The spaces in your throat, mouth, and sinuses create "resonance chambers" that amplify certain frequencies. Some people's resonance chambers are naturally better shaped!

  • Constructive vs. destructive interference: Good singers' voice waves have more "constructive interference" (where waves add together to get stronger) and less "destructive interference" (where waves cancel each other out). Physics literally determines if you sound good!

  • Acoustic impedance: This is a super technical physics term about how efficiently sound energy transfers from your vocal cords to the air. Some people naturally have better impedance matching, which gives them better projection without straining.

How to use physics to improve your singing (things I'm totally trying!)

  • Visualizing sound waves: There are these cool apps that show the actual waveform of your voice in real time, so you can SEE when you're in tune and when your harmonics look balanced. It's like turning singing into a physics-based video game!

  • Resonance training: By understanding the physics of resonance, you can actually position your tongue, soft palate, and jaw to create optimal resonant spaces. I've been practicing making different vowel shapes while watching how it changes my sound waves on the app!

  • Controlling vocal fold physics: The thickness, tension, and closure patterns of your vocal folds determine your sound quality. By using specific exercises, you can actually change the physical properties of your vocal folds to improve their vibration patterns!

  • The physics of breath support: Airflow creates the energy for sound waves. By understanding the physics of air pressure and flow rate, you can control your breath to maintain consistent amplitude (loudness) and frequency (pitch) in your sound waves.

I'm completely fascinated by how physics explains something as artistic as singing!

The best part? Understanding the physics means anyone can improve their singing by applying these principles. But even with singing, singing requires a lot of practice as well. With this maybe there's hope for all the would-be singers.