Benjamin Franklin's phonetic alphabet as follows: Franklin's proposed alphabet included seven letters to represent vowels. This set consisted of two new letters, in addition to five letters from the existing English alphabet: a, e, i, o, u. The first new letter was a formed as a ligature of the letters o and a, and used to represent the sound (as written in IPA). The second, ɥ, was used for . Franklin proposed the use of doubled letters to represent what he called long vowels, represented by modern phonemes thus: as the long-vowel variant for (or, in his notation, "cɩcɩ" versus "cɩ"), for ("ee" versus
Scale of vowels Scale of vowels A scale of vowels is an arrangement of vowels in order of perceived "pitch". A scale used for poetry in American English lists the vowels by the frequency of the second formant (the higher of the two overtones that define a vowel sound). Starting with the highest, In technical terms, this listing goes from front vowels to back vowels. It is by no means precise enough for phonology. For one thing, the sounds with or as the second symbol are diphthongs, during which the formants change. Also, many American accents and practically all from other countries will