What is a vowel?
Vowels refer to consonants at the beginning of syllables. There are 21 consonant vowels in Mandarin, namely: b, p, m, f, d, t, n, l, ɡ, k, h, j, q, x, z, ch, sh, r, z, c, s.
Difficulty in pronunciation of vowels
(i) Exercises of b, p, m of bilabial sounds:
The pronunciation of the vowel p, the air flow is too strong, it will produce noise, the microphone emits a "poof" sound; these three tones in life do not have to be too exquisite, but the broadcast requires accurate, clear and loud, and the strength of these three tones must be strengthened. Note: The lips are tightened, the contact is strong, the lower abdomen should be controlled, the airflow should be concentrated, and the strength should be concentrated on the lips, so that the sound is concentrated.
(ii) Practice of f
Pay attention to the natural contact between the upper teeth and the lower lip during the broadcast. Do not bite the upper teeth on the lower lip to pronounce the sound. The area of resistance is large, and the force is dispersed. f itself is an eraser, pay attention to temperance airflow.
(c) n\l exercises
The tip of the tongue presses against the upper gums. Attention should be paid to the strength of the tip of the tongue when practicing. In addition to oral training exercises, you can also practice more syllables such as d, t, n, l syllables and tongue twisters in the syllable table. There are also a few people who do not have the tip of the tongue or cannot stick out the tip of the tongue, which affects the pitch even more. N nasal sounds. The tip of the tongue can not withstand the upper gums, and part of the air flow easily runs outside the mouth, the air flow into the nasal cavity is reduced, and the nasal color is diluted. On the contrary, there is no edge sound, and the tip of the tongue is covered with the upper gums, which affects the accuracy of the sound.
(iv) Exercises in g, k, and h:
It is also called the posterior tongue tone. Some people in order to pursue the sound of the thick, the three tones are sent too far back, such pronunciation will drive the vowel and other vowels are behind, so that the entire pronunciation state is incorrect, but also easy to produce laryngeal sounds. When pronouncing, pay attention to the contact between the base of the tongue and the hard palate at the junction of the soft palate.
(v) Exercises in j, q, x:
These 3 tones are the most prone to problems in broadcasting. There are no sharp tones in Mandarin. When broadcasting, there are too many sharp tones, especially when playing more serious political manuscripts, it is not solemn and simple. When pronounced, the tip of the tongue is pressed against the back of the lower teeth, and it cannot be leaned up or down.
Part 03
Voice defects are common with vowels
1. The pronunciation part of the posterior sound of the tip of the tongue is in front, and the actual pronunciation site is that the tip of the tongue is in contact with or close to the upper gum.
2. The role of the teeth on the lip and teeth is not obvious, with the friction of the lips, close to the lips.
3. The posterior rubbing of the tongue is later in the pronunciation site, that is, the laryngeal rub is attacked.
4. The pronouncement of the anterior lingual tone is obviously advanced, but it has not yet been purely pronounced as the tip of the tongue, and the actual timbre is close to the tongue lobe.
5. Pronounce the presynges of the tongue as an interdental sound.
6. The zero vowels of the vowel uo and u are pronounced as the voiced sound of the lips and teeth.
7. Pronounce the non-sending air stops and clear stops in the re-reading syllables into the voiced stops and plugs that do not send gas.
8. The vowel t in front of the qi teeth is t with palatine color.
9. When the back sound of the tip of the tongue is pronounced, the tip of the tongue is too rolled back, resulting in a large tongue color.
Part 04
Assignment: Read tongue twisters and take care of breathing exercises

b-p: Eight hundred pacesetters ran to the north slope, the northern artillery ran side by side, the artillery was afraid to touch the pacesetters, and the pacesetters were afraid to touch the artillery.
d-t: big rabbit, big belly, big belly big rabbit, big belly to bite big rabbit belly.
n-l: There are four big four-wheeled carriages at the door, and you can pull as many as you like. Xiao Luo wants to pull the first two cars, and Xiao Liang does not want the last two cars. Xiao Liang wanted to grab Xiao Luo's first two cars, and Xiao Luo had to pull the last two of Xiao Luo's.
h: Huahua has two yellow flowers and red has two red flowers. Huahua wants red flowers, and red wants yellow flowers. Huahua gave Honghong a yellow flower, and Honghong gave Huahua a red flower.
j, q, x: A painter in Seven Lanes, a tinsmith in West Lane, a tinsmith in Seven Lanes steals tin from a Tinsmith in West Lane, and a Tinsmith in West Lane steals lacquer from a Tinsmith in Seven Lanes.
z-zh: tear the word paper through the window, tear off the horizontal paper once, tear off the vertical word paper once, is the word paper tearing the word paper, not the word paper, do not tear the paper randomly.
zh, ch, sh: The big cart pulls the cart, the cart pulls the small stone, the stone falls, and the little foot finger is smashed.
r: Summer is hot without day, winter is cold every day, spring sunrise is getting warmer, clothes are drying bedding list, autumn days are high and cloudy, and the red sun is forcing the west mountain.
sh: Four voices: Stone Room Poet Shi Shi Shi, Lion Lover, Oath to Eat Ten Lions, Shi Shi Shi Shi Shi, Clan Shi Shi
z-c-s-j-x: The driver buys the hens, looks closely at the hens, four small hens, twitters and rejoices, and the driver laughs and giggles.