Nasal resonance is nasal vibration. When you emit nasal resonance you can feel your nasal passages vibrating and it can be a bit ticklish. Nasal resonance is the vibration of sound waves on the nasal bones, i.e. the focus of the sound is localized in the nasal cavity. It is also called mask singing because the bright focus of the sound is in the nasal cavity. Nasal resonance can be practiced by pronouncing and singing to make the nasal passages more open. Nasal resonance must find a good breath and a resonant position. Nasopharyngeal resonance cavity is the most important part of the effective protection of the vocal cords and focus on the charm of the voice, it is very valuable to exercise. In daily life, you should pay attention to the nutritional balance of the diet, try not to eat spicy and stimulating food. Relying on scientific methods, give full play to the function of the oropharyngeal cavity and the regulation of resonance to get a good and balanced mixed resonance.