The "golden ratio base" is a mathematical concept that has been studied for centuries. The spelling of this word follows the IPA phonetic transcription of "ˈɡoʊldən ˈreɪʃioʊ beɪs". The "o" in "golden" is pronounced as "oh" and the "a" in "ratio" is pronounced as "ay". The "b" in "base" is pronounced as a soft "b" sound. The term "golden ratio" refers to the special number that is used in many fields of study such as art, design, and music. The concept is also known as the "divine proportion" due to its aesthetic significance.