What are the effects used in the song one by metallica?

In Metallica's song "One," various effects enhance the overall atmosphere and emotional impact. The use of reverb on the guitar and vocals creates a haunting sound, while the dynamic shifts between clean and distorted guitar tones emphasize the song's intensity. Additionally, the incorporation of sound effects, like the sound of war and machinery, helps convey the themes of trauma and isolation. These elements work together to create a powerful and immersive listening experience.