International Listening Association

Airflow functions and spectra for non-breathy (left) and breathy voice. Notice the more rounded glottal wave for breathy voice, which produces a spectrum with a stronger 1st harmonic or, to state it the other way around, less energy spread into the higher frequencies. ... The voice and voice therapy (4th ed). Englewood Cliffs, NJ: Prentice Hall ... ................
................