religiosa predicts nonresonant sound generation (Elsner & Popov 1978), and thus an acoustic output
that is broadband (Montealegre-Z & Morris 1999, Montealegre-Z et al.
P, "An Automatic System for Characterizing Ultrasound Transducers and Measuring the Acoustic Output
of Medical Diagnostic Ultrasound Equipment", Tesis de Maestria en Automatica, Escuela de Ingenieria Electrica y Electronica, Universidad del Valle, Cali, Colombia, Abril 2001.
With 140 dB of acoustic output
, the HyperShield easily penetrates high noise environments and helps create a safety perimeter stand-off of 50 metres with crystal clear commands, authoritative messages and piercing alert tones.
Over thirty years ago, Sundberg provided a lucid explanation of how the harmonic frequencies of the source (the larynx) combine with the resonance frequencies of the vocal tract to produce the acoustic output
at the mouth.
1) What are the similarities/differences in vocal fold contact area (VFCA) and acoustic output
within types of postures (constant vs.