In the domain of Indian classical music, voice disorders significantly affect a singer's tonal quality and performance. These disorders are broadly classified into two categories: Organic and Functional. Organic disorders involve physiological abnormalities in the vocal apparatus and necessitate medical attention. Functional disorders, however, pertain to how the vocal mechanism is used and should be addressed by a trained vocal pedagogue.
Common functional voice disorders include:
(a) Throatiness
(b) Unsteadiness
(c) Breathiness
(d) Breaks in voice registers
(e) Voice fatigue
(f) Thin or feeble voice
(g) White tone
(h) Nasality
(i) Huskiness
(j) Hoarseness
(k) Register weakness
(l) Uneven voice
These defects can be corrected through accurate diagnosis and appropriate remedial training. As noted by M.M. Babcock:
"Vocal culture is an individual matter, and the methods of treatment of the voice must be as carefully differentiated according to the needs of the individual as the methods of treatment of any other bodily ailment."
A. Throatiness
Cause:
Throatiness occurs due to excessive tension in the jaw, neck, and chest muscles, which interferes with the optimal functioning of the laryngeal muscles. In this condition, singers often forcefully squeeze the larynx between the jaw and neck muscles to approximate the vocal cords, resulting in a constricted and muffled tone.
Improper tongue posture and tension in its muscles also contribute, as does the raising of the larynx against the hyoid bone or the contraction of swallowing muscles during phonation.
Cure:
To alleviate this tension, begin by relaxing the jaw muscles. Lower the head slightly with the chin tucked inward. Gently move the head side-to-side and let the jaw drop down and back. This relieves tension in the jaw and neck. Yawning with a closed mouth helps lift the soft palate and open the throat passage, further relaxing the laryngeal region.
The tongue should rest flat with its tip touching the lower gum ridge; the base of the tongue must be pulled forward to avoid constriction. Correct breathing—especially avoiding the use of swallowing muscles to close the glottis—is essential. The larynx must stay freely lowered, while the hyoid bone remains elevated, maintaining adequate space between the two.
B. Unsteadiness
Cause:
An unsteady or wobbling voice arises from poor breathing habits and psychological factors such as nervousness or self-consciousness. Using swallowing muscles to close the glottis, having a jumpy jaw, or a trembling tongue also contributes to vocal instability. As V.E. Negus notes in The Comparative Anatomy and Physiology of the Larynx, effective air control relies on a combined lower thoracic and diaphragmatic mechanism.
Cure:
Adopt diaphragmatic breathing to control airflow evenly. This approach prevents tension in the chest and throat and avoids the downward pull of abdominal muscles. Ensure the jaw is tension-free, and relax the mylohyoid muscle at the tongue’s base to prevent quivering. Singing softly within a comfortable pitch range also aids in developing steadiness. Lastly, overcoming mental blocks such as fear or self-consciousness requires dedicated focus on the music itself, shifting attention away from the singer and onto the performance.
Note : The article is based on the book by Prof. SAK Durga " Voice Culture - The Art of Voice Cultivation"
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