You can see that the resonances of your formants line up with the overtones of your sound by using vocal fry alongside the sung note (this trick is discussed by Donald Miller). You can also see and hear that the strengthened overtone is a recognizable member of the scale by whistling alongside the spectrum. Here is a scetch of what your spectrogram might look like:
The voice teacher's ear is the most important tool that they posses. It is the necessary key to a practical application on any understanding of the voice, teaching method, or philosophy. The teacher
Acoustic registers are discussed at length by authors such as Coffin and Bozeman. They result from an interaction between the the resonances of the vowel and the pitch being sung along with its compon
Laryngeal registers are those that result from a different use of the phonation muscles, especially the TA. These laryngeal registers are better termed modes. Mode 1 is commonly referred to as "chest