Founder, Author & Tool Developer at VoiceFrequencyTest.com
PAVA-Recognized Vocologist | Ph.D. in Speech and Hearing Science
I’m Amelia Foster, the founder of VoiceFrequencyTest.com. For the past six years, my work has focused on voice frequency, pitch, vocal acoustics, and practical methods for analyzing the human voice.
I hold a Ph.D. in Speech and Hearing Science and am a PAVA-Recognized Vocologist. That background shapes how I approach both the educational content and browser-based tools published on this site.
What I Do at VoiceFrequencyTest.com
I personally build, develop, test, and maintain the tools on VoiceFrequencyTest.com.
My work includes:
- researching voice frequency, pitch, and vocal acoustics
- developing browser-based voice-analysis tools
- testing microphone and audio-processing behavior
- reviewing calculations and tool outputs
- documenting technical limitations
- checking educational content for accuracy and clarity
- updating tools and explanations when improvements are needed
The site now includes tools for measuring or exploring voice frequency, pitch, vocal range, speaking rate, voice tone, and related characteristics.
My goal is not simply to display a number. I want users to understand what was measured, what the result can tell them, and what it cannot tell them.
Why I Created VoiceFrequencyTest.com
Voice frequency is often discussed online as though a single number can explain everything about how a voice sounds.
In practice, voice is more complex.
Fundamental frequency is an important measurable acoustic property, but two voices with similar fundamental frequencies can still sound very different because of factors such as vocal-tract resonance, spectral characteristics, articulation, and speaking style.
I created VoiceFrequencyTest.com to make voice measurements easier to explore while providing enough context to prevent a number such as Hz from being treated as a complete description of someone’s voice.
The site combines practical tools with educational resources so users can explore both the measurements and the science behind them.
Areas I Focus On
My main areas of interest and work include:
- fundamental frequency (F0)
- voice pitch
- vocal acoustics
- voice frequency measurement
- vocal range
- voice tone and resonance
- speech and speaking-rate analysis
- browser-based audio processing
- practical limitations of microphone-based measurement
These topics form the foundation of the tools and educational articles published across VoiceFrequencyTest.com.
My Approach to Accuracy
Voice measurements should be presented with appropriate context.
A microphone-based tool can estimate acoustic properties such as frequency and pitch, but the quality of a result can depend on:
- microphone quality
- background noise
- room acoustics
- pitch stability
- speaking or singing technique
- device and browser behavior
- the type of sound being analyzed
I test the site’s tools directly and review key technical and scientific claims against relevant voice-science research, professional references, and browser-audio documentation where appropriate.
I also try to distinguish between measurement and interpretation.
For example, a detected fundamental frequency is a measurement. Conclusions about voice quality, health, personality, attractiveness, or other broader characteristics require much more caution and context.
You can read more about our research and publishing standards in the Editorial Guidelines.
Building and Testing the Tools
I am directly involved in the development and testing of VoiceFrequencyTest.com’s tools.
Testing may include checking:
- microphone permission behavior
- frequency and pitch detection
- calculation logic
- input validation
- result consistency
- browser usability
- error handling
- user instructions
- edge cases
- how limitations are communicated
A tool being technically functional does not mean every result should be interpreted as definitive. Part of my work is making those boundaries clear.
For more information about the site’s technical approach, see How It Works.
Understanding Voice Frequency
When we hear our own voice while speaking, we receive sound through both air conduction and bone conduction. A recording captures the voice differently, which is one reason recorded speech can sound unfamiliar.
VoiceFrequencyTest.com focuses on measurable acoustic properties such as fundamental frequency while recognizing that frequency alone does not describe every characteristic of a voice.
Educational articles on the site explore these differences in more detail, including how frequency relates to pitch, resonance, vocal range, age, sex, singing, and other contexts.
Educational Information, Not Individual Clinical Care
My background in speech and hearing science and vocology informs the way I research and explain voice-related topics.
However, VoiceFrequencyTest.com is an educational website and does not provide individualized clinical assessment, medical diagnosis, or treatment.
Browser-based tools cannot diagnose vocal-fold conditions, speech disorders, neurological conditions, or other medical problems.
If you have persistent hoarseness, pain, sudden voice changes, loss of voice, or another health concern, an appropriately qualified healthcare professional can provide an individualized assessment.
Editorial Responsibility
I have final editorial responsibility for content published on VoiceFrequencyTest.com.
Key scientific and technical claims are reviewed for accuracy, appropriate context, and limitations before publication. Content may also be revised when better evidence becomes available, a tool changes, or an explanation can be made clearer.
You can read the full editorial process in our Editorial Guidelines.
Privacy and Voice Analysis
VoiceFrequencyTest.com is designed to explain clearly how voice data is handled.
Detailed information about microphone processing, storage, and related privacy practices is available on the Data Security page.
Connect With Me
You can view my professional profile on LinkedIn.
For questions, corrections, technical feedback, or concerns about VoiceFrequencyTest.com, email:
contact@voicefrequencytest.com
You can also use the site’s Contact page.
Author: Amelia Foster
Role: Founder, Author & Tool Developer
Experience: 6 years working with voice frequency, pitch, and vocal analysis
Education: Ph.D. in Speech and Hearing Science
Professional Recognition: PAVA-Recognized Vocologist