When people pronounce words with oral vowels and there is a deviation in airflow into the nasal cavity, they get a nasal voice.In some cases, the nasal voice can be corrected with exercise.
The soft palate is the region where the nasal resonance will be regulated, some people are born with a different soft palate configuration and some people end up having more resonance in the nose, which gives them a more nasal voice, in these cases a logopeda You have to look for it, so that the best treatment is indicated.
One exercise you can do is plug your nose and say some syllables, with oral sounds:
“His knew it”
“Pa pe pi po pu”
“Read well”
When we talk about these kinds of sounds, which are oral sounds, the airflow should come out of the mouth and not through the nasal cavity, so you can repeat these syllables several times until you no longer feel any vibration in your nose.
Another way to check if the exercise goes well is by placing a mirror under your nose while you say the syllables, to check if air comes out of your nose, if there is fog it means that air comes out of your nose and the syllables are not pronounced correctly.
Another way to check if the person is speaking through the nose is to say a phrase in which the resonance of the voice should be oral, and then try to repeat it in exactly the same way, without noticing any change:
“Dad came out”
“Luus took the pencil”
If the sound is the same, it means that the person spoke correctly and properly controlled the air outlet; otherwise, it means that the person can speak through the nose.
To improve your voice, you can repeat this exercise several times trying to control the air output so you can say the phrase the same way with and without nasal congestion.
Another exercise that can help correct your nasal voice is to say the following syllables, which should only come out of your mouth:
“Ke ki ko ku”
The repetition of the syllable “k” with intensity, helps to work the soft palate, improving the regulation of the air output through the mouth or nose.You can also cover and nose, to understand if the sound comes out correctly.
See also exercises that help improve diction.