A high-pitched voice due to excessive tension

The muscles of the body are going to be stiff if you strain too much when playing sports.
In the case of vocalization as well, vocal cord muscles will also become stiff and contract by excessive tension. This will result in unintentionally producing a high-pitched voice when singing or speaking.
There are 2 main factors when making a high-pitched voice, the first is to contract the vocal cords muscles and the second is to extend and thin out the vocal cords muscles. Extending the vocal cord muscles can produce a variety of different sounds, not just one.
In the case of stiff vocal cord muscles from excessive tension, the voice will unintentionally sound quieter (not at normal volume) and also have a shrilling high-pitched sound effect added to it. This is because the vocal fold isn’t vibrating well.
On the other hand, in the case of extending the vocal cords muscles when not stiff, the voice will sound rich and beautiful, because the vocal fold is vibrating well.
The vocal cord is extended by the cricothyroid muscle, this action makes the vocal cord thin. For example picture a rubber band being pulled back. When it is pulled back it also extends and becomes thin. When the vocal cord becomes thin due to normal tension (not excessive), it can vibrate well and produce a good high-pitched voice.
If your voice unintentionally sounds higher-pitched than usual in singing or conversation, then the musculus extrinsic laryngis has been strained by excessive tension.

ストレス発散するビジネスウーマン
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The above photo shows the vocal cord closing tightly due to excessive tension when vocalizing.

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Knacks, for beginner level Karaoke Singers

There are two knacks regarding Karaoke for beginners.
(1)The singer should sync their voice’s tone at the beginning of the song. To do this, listen to the song over and over again. Repetition will assist you in memorizing the song’s tones.
Tip:Most people usually think they are good at singing karaoke, even if they can only sync their voice tone with the beginning of the song. For beginners this tactic is, if the beginning of the song sounds perfect, then it’s okay if they sing out of tone towards the end. The fact is in many situations the audience will still have good a impression of the singer, due to their of their initial singing performance.
(2)You always have to keep proper rhythm with the music.
In Karaoke, I believe that rhythm is more important than the tone or pitch.
Tip:When singing karaoke, a singer’s sound tone can still be slightly inaccurate, because people think that it is related to the individual’s style or character. Although, if your rhythm is bad then people will think your singing is also bad too.
Rock, pop or jazz, any kind – the genre of music doesn’t matter, just please keep in mind and try to have a good sense of rhythm when singing. This is top priority,
You can, even as a beginner at karaoke, improve your sense of rhythm by training. It is true the highest degree of improving an individual’s rhythm is if they start training at a young age. It’s never too late, but the earlier you start the better.
If you can apply yourself and the above two knacks when singing, people will think you are a good Karaoke Singer.
This advice is only for beginner level Karaoke Singers.
I hope you do well!

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Laryngeal trauma

A lot of people visit me because they suffer from laryngeal trauma. The patients are most commonly claiming they have a severe hoarse voice, are uncomfortable with their throat after letting out a high-pitched voice, or after shouting loudly for extended periods of time feel some type of pain. More often these patients go to the Otological hospital or Orthopedics department, before visiting me, where a doctor had diagnosed them with just straining, stating there really is no problem with their throat.
If I investigate their throats, in almost all of these cases I always find that the muscles relating to vocalization have ruptured or observe the subluxation of the cricothyroid articulation.
The more time that goes by, it gets more difficult to heal these issues. It is not easily noticeable when these muscles hurt, because the muscles relating to vocalization generally have a dull sense.
If you want to get back to your original voice after suffering a minor or major throat trauma, I recommend you to seek and get treatment as soon as possible.

sore throat - isolated on white digital composition

Note1:Healing laryngeal trauma is different and depends on the place, degree, and time elapsed since the injury.

Note2:Laryngeal trauma is not only caused by exogenous force, it can also be caused by screaming loudly or letting out a high-pitched voice.

Why is there is no audio data in my blog?

Why is there is no audio data to support the research on my blog? The reason is because with voice recordings, every listener has a different opinion and reply regarding the overall sound, quality, environment and sound equipment used to collect the data. It is sometimes difficult to explain in words and have the reviewing audience agree on detailed sound changes as well. This issue is not only referring to internet sound delivery but also real life too.
For example, in the past on my ‘Japanese Blog,’ I had recorded the voice of a normal singer and the voice of a patient who has a vocal cord nodule, and saved them to WAV files. Then shared them, with my findings, and awaited for others to review and give feedback.
I could clearly identify the two different voices when played back on my PC using my own personal sound equipment. The equipment I used was an amplifier (brand name: Luxman) combined with headphones (brand name: Beyerdynamic).
The voice of the patient who has the vocal cord nodule displayed (1) A hoarse voice and irregularly leaking air (2)Impaired tone and resonance(3)Small wheezing noise accompanied with the voice.
However, when using the built-in speakers of a PC, I myself and most of the people reviewing the data could not identify the differences between the two voices.
In that case study, detailed sound could not clearly be identified using PC factory speakers.
As stated above, I found out through trial and testing it is too difficult to share investigated sound data and compare those sounds, due to the sound equipment and also the audience also observing/reviewing its sound equipment. With such inconsistencies playing a factor, I firmly decided never to share any more sound data on a blog or in real life. I truly believe if I posted audio data files or movie clips, unpredictable evaluations and criticism may follow. Please accept this and understand that I can only share my research findings and conclusions.

Note:Everybody has a different ear shape and size, and sometimes that size is slightly or extremely different from the right to left ear. These differences will directly affect how people perceive the sounds they hear.