Smoke is a special pronunciation skill, which is realized by vibrating the edge of vocal cords and singing.
To practice a voice, you must go through two stages: basic breathing and special pronunciation position.
Basic Breathing: Breathing through the chest and abdomen (currently recognized as the most scientific breathing method in the world, which is used by the world tenor Pavarotti), so that your breathing can promote the control of sound.
Special pronunciation position * * * Ming. For example, the throat * * * sound in Hay's voice, now many schools pay attention to this. It can produce overtones. Give the sound a natural metallic tone.