stridor
The vocal cords or larynx --
Sounds are produced during talking in the vocal tract, which starts from the vocal cords in the larynx. The vocal cords vibrate to produce sound, which then resonates through the throat, mouth, and nasal cavity. Various movements and positions of the articulators, such as the tongue, lips, and teeth, shape the sound to produce different speech sounds.
The vocal cords stretch across the opening of the larynx, when you speak muscles make the vocal cords contract, narrowing opening as air rushes through, movement of the vocal cords makes molecules vibrate.
Sound is generated in the larynx, and that is where pitch and volume are manipulated. The strength of exhalation from the lungs can affect the volume of the sound produced. Fine manipulation of the larynx is used to generate a source sound with a particular pitch. This source sound is altered as it travels through the vocal tract, configured differently based on the position of the tongue, lips, mouth, and pharynx. The process of altering a source sound as it passes through the filter of the vocal tract creates the many different vowel and consonant sounds of the world's languages as well as tone, The larynx also has a similar function to the lungs in creating pressure differences required for sound production; a constricted larynx can be raised or lowered affecting the volume of the oral cavity. The vocal folds can be held close together so that they vibrate. The muscles attached to the arytenoid cartilages control the degree of opening. Vocal fold length and tension can be controlled by rocking the thyroid cartilage forward and backward on the cricoid cartilage by manipulating the tension of the muscles within the vocal folds, and by moving the arytenoids forward or backward. This causes the pitch produced during phonation to rise or fall. In most males the vocal folds are longer and with a greater mass than most females' vocal folds, producing a lower pitch.
in human ,the sound is produced by the voice box or larynx
Speech sounds are produced in the larynx through the vibration of the vocal cords when air passes through them. The vibration creates sound waves that are then shaped into specific sounds by the movement of the articulators, such as the tongue, lips, and teeth. The pitch, volume, and quality of the sound are determined by the tension and length of the vocal cords.
Speech sounds are produced in the larynx. These occur because specialized structures in the larynx rub up on each other in different ways.
At the upper end of the trachea is the larynx. Sounds are produced when air is forced past two ligaments - the vocal cords - that stretch across the larynx. The pitch and volume of the sound produced varies with the amount of tension on the vocal cords and on the amount of air being forced past them,.
your larynx or (voicebox)
capillaries
Your Larynx or "voicebox" creates the sound with which you speak. It controls the pitch and volume of your voice. The larynx also protects part of your trachea.
Purring?
Voice has two meanings. It is the sound produced in a person’s larynx and delivered through the mouth with resonance of the vocal cords. It is also an expression of opinion.
The larynx (or voice box) sits atop the windpipe (or trachea). If you make a sound and feel the vibrations in your neck, you are feeling your larynx at work.
Vocal chords
You larynx