Phonaotograph or Phonautograph: How To spell?
The word Phonaotograph is misspelled against Phonautograph, a noun meaning "An instrument by means of which a sound can be made to produce a visible trace or record of itself. It consists essentially of a resonant vessel, usually of paraboloidal form, closed at one end by a flexible membrane. A stylus attached to some point of the membrane records the movements of the latter, as it vibrates, upon a moving cylinder or plate."
Word contains consecutive vowels 'AU' in between alphabets phon & tograph is misspelled as 'AO'Wrong Spelling:  phon-ao-tograph  Correct Spelling:  phon-au-tograph 
Find more incorrect spellings of Phonautograph to spell right way.