Spectral envelope

Spectral envelope is like a special suit that helps us hear sound better. When we hear sound, it's made up of different frequencies or pitches, just like when you pluck a guitar string, it makes a sound with a certain pitch. The spectral envelope is like a suit that shows us how much energy there is at different frequencies. This helps us understand what the sound is made up of and how loud each part of the sound is.

Imagine you're listening to music and you want to hear the words more clearly. The spectral envelope can help because it can make the parts of the music that are quieter or less important, like the instruments, quieter. This way, the parts with the lyrics and singing are easier to hear.

The spectral envelope can also help make sounds that are too high or too low for our ears to hear better. Just like when you play a game and you can make the sound louder or softer, the spectral envelope can also make the sound louder or softer at specific frequencies.

Overall, the spectral envelope helps us hear sounds better by showing us how much energy there is at different frequencies and allowing us to adjust the sound to our liking.