Which theory of voice production is currently not widely accepted in the scientific community?

The neurochronaxic theory is considered to be less widely accepted in the scientific community compared to the other theories listed. This theory, proposed by the voice scientist Alfred Tomatis, posits that the neural impulses from the brain directly control the frequency of vocal fold vibrations, suggesting that voice production is solely a neurophysiological phenomenon. It doesn't adequately explain the complex interplay of biomechanical and aerodynamic forces involved in voice production.

In contrast, the myoelastic-aerodynamic theory, the Bernoulli effect theory, and the vocal fold oscillation theory are well supported by empirical research and are more widely recognized in understanding how voice and sound are produced. The myoelastic-aerodynamic theory emphasizes the role of muscle tension and subglottal pressure in allowing the vocal folds to open and close rhythmically. The Bernoulli effect theory describes how the difference in pressure around the vocal folds contributes to their movement, while the vocal fold oscillation theory addresses how the inherent properties of the vocal folds lead to sound production.

These models consider multiple factors and provide a more comprehensive framework for understanding vocal fold mechanics, making them more acceptable within the scientific community.