> In simple terms, timbre is what makes a particular musical instrument or human voice have a different sound from another, even when they play or sing the same note.
> The physical characteristics of sound that determine the perception of timbre include frequency spectrum and envelope.
> In simple terms, timbre is what makes a particular musical instrument or human voice have a different sound from another, even when they play or sing the same note.
> The physical characteristics of sound that determine the perception of timbre include frequency spectrum and envelope.
https://en.wikipedia.org/wiki/Timbre