Related Experiment Video
Updated: Aug 12, 2026

A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis (ALS)
Published on: February 21, 2011
Effects of three parameters on speaking fundamental frequency
H Hollien1, P A Hollien, G de Jong
1Institute for Advanced Studies of the Communication Processes, University of Florida, Gainesville 32611, USA.
This study investigated speaking fundamental frequency (SFF) trends, university student bias, and speech type variations. While a minor secular trend and slight physical differences in students were noted, SFF differences between speech types were not robustly predictive.
Area of Science:
- Phonetics and Speech Science
- Acoustic Analysis of Voice
Background:
- Speaking fundamental frequency (SFF), also known as F0, is crucial in speech and voice research.
- Previous studies explored SFF in relation to age, gender, pathology, and more, but some relationships remain unclear.
Purpose of the Study:
- To investigate the long-held notions regarding secular trends in SFF over time.
- To assess potential bias introduced by using university students in speech research.
- To determine if SFF varies systematically between different speech types, specifically oral reading and spontaneous speech.
Main Methods:
- Experimental assessment of speaking fundamental frequency (SFF) levels.
- Comparison of SFF data across different time periods to evaluate secular trends.
- Analysis of SFF in university students versus a broader population cohort.
- Measurement of SFF during oral reading and extemporaneous speaking tasks.
Main Results:
- Limited evidence of a secular trend in SFF was found, appearing inconsequential in recent decades.
- University students, while slightly larger than average, showed only minor vocal differences.
- Oral reading generally yielded higher mean SFF than spontaneous speech, but this difference lacked robustness and predictive value for individuals.
Conclusions:
- Secular trends in SFF are minimal in contemporary times.
- University students are largely representative for SFF research, with negligible bias.
- SFF differences between oral reading and spontaneous speech are not consistently significant or individually predictive.
More Related Videos
Related Concept Videos
Forced Oscillations
Concept of Resonance and its Characteristics
Expected Frequencies in Goodness-of-Fit Tests
Problem-Solving: Tuning of a Guitar String
The string's wave speed can be regulated by varying the linear density. Tension is the other property that determines the speed of...
Larynx
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids, corniculates, and...
Perceiving Loudness, Pitch, and Location
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...

