VocalRangeTester.com is committed to making its tools and educational content accessible to the widest possible range of users, including people with disabilities. This statement explains our current accessibility status, the known limitations of our vocal tools for certain users, what we have done to improve accessibility, and how to contact us if you experience a barrier.
Our Commitment
We believe that everyone who is curious about their voice deserves access to tools and information that help them understand it — regardless of disability, device, or technical setup.
VocalRangeTester.com aims to conform to the Web Content Accessibility Guidelines (WCAG) 2.1 at Level AA — the internationally recognised standard for web accessibility published by the World Wide Web Consortium (W3C). These guidelines define how to make web content more accessible to people with visual, auditory, motor, cognitive, and speech-related disabilities.
We treat accessibility as an ongoing commitment, not a one-time task. When we identify barriers, we work to remove them.
Current Accessibility Status
VocalRangeTester.com is partially conformant with WCAG 2.1 Level AA. Partially conformant means that some parts of the website do not yet fully meet the standard. Known gaps and their reasons are disclosed in the Limitations section below.
What we have implemented
Keyboard navigation. Core site navigation — menus, links, and page structure — is accessible via keyboard. Users who cannot use a mouse can navigate between sections using the Tab key and activate links with Enter.
Text readability. Body text is set at a minimum of 16px with sufficient line spacing to support readability for users with dyslexia or low vision. Heading levels (H1, H2, H3) are used in correct hierarchical order throughout the site so screen readers can navigate content structure logically.
Colour contrast. Text and background colour combinations across the site are chosen to meet or exceed the WCAG 2.1 Level AA minimum contrast ratio of 4.5:1 for normal text and 3:1 for large text.
Link clarity. Links are descriptive — they explain where they lead rather than using generic phrases like “click here” or “read more.” This benefits screen reader users who navigate by cycling through links.
Alt text on images. Meaningful images used across articles and tool pages include descriptive alt text. Decorative images use empty alt attributes so screen readers skip them appropriately.
Responsive design. The site is fully responsive and functions across screen sizes from small mobile devices to large desktop monitors. Content reflows cleanly without horizontal scrolling at standard zoom levels.
No auto-playing media. No audio or video content on this site begins playing automatically without user action.
Page titles. Every page has a unique, descriptive title tag so users navigating between browser tabs or using a screen reader can identify where they are.
Skip navigation link. A “Skip to content” link is available at the top of every page, allowing keyboard and screen reader users to bypass the main navigation and reach page content directly.
Known Limitations
VocalRangeTester.com includes interactive browser-based tools that use microphone input to measure vocal pitch. These tools present specific accessibility challenges that we are transparent about:
Microphone dependency. All vocal measurement tools on this site — including the Vocal Range Calculator, Pitch Accuracy Analyzer, Voice Type Classifier, Deep Voice Test, and Pitch Detector — require access to a functioning microphone and the ability to produce sustained vocal sound. These tools are not usable by people who are unable to vocalise or who do not have a working microphone input available on their device. This is an inherent constraint of the tool’s purpose, not a design oversight.
Visual result display. Tool results are currently displayed visually as note names, frequency readings, and range spans. Some tool outputs do not yet have full screen reader announcements for real-time pitch detection updates. We are aware of this limitation and are working to improve the screen reader experience for result output.
Complex interactive interfaces. Some tool interfaces — particularly the Singer Comparison Tool and AI Voice Analysis — include interactive visual components that may be difficult to navigate with keyboard alone in their current form. We are reviewing these interfaces for keyboard accessibility improvements.
Third-party advertising. This site may display advertisements served by Google AdSense. The accessibility of individual ad creatives is outside our direct control, as ads are provided by third-party advertisers. We have no control over the content or accessibility of ad units themselves.
Assistive Technology Compatibility
VocalRangeTester.com has been tested for basic compatibility with the following assistive technologies:
- Screen readers: NVDA with Chrome (Windows), VoiceOver with Safari (macOS and iOS)
- Keyboard-only navigation: Tested in Chrome and Firefox on Windows
- Browser zoom: Content tested at 200% zoom without loss of content or functionality
- High contrast mode: Core content remains readable in Windows High Contrast mode
We recommend using an up-to-date version of Chrome or Firefox with your preferred assistive technology for the most consistent experience.
Text Alternatives for Tool Results
We recognise that users who cannot use the interactive vocal tools directly may still benefit from the educational content on this site. The following pages provide text-based explanations of the concepts the tools measure, and are fully accessible without microphone use:
- What Is Vocal Range — explanation of how vocal range is defined and measured
- Voice Types — full guide to soprano, mezzo-soprano, alto, tenor, baritone, and bass classifications
- Vocal Range Chart — reference chart of standard voice type ranges
- Average Vocal Range — what typical ranges look like across ages and training levels
- How It Works — technical explanation of how pitch detection works
These pages are designed to be fully usable with screen readers and keyboard navigation.
Feedback and Contact
We welcome accessibility feedback. If you experience a barrier on any page of VocalRangeTester.com — a page that is difficult to navigate, a tool result that is not announced by your screen reader, or any other accessibility issue — please let us know.
Contact method: vocalrangetester.com/contact
Please include:
- The page or tool where you experienced the issue
- The assistive technology and browser you were using
- A description of what you expected and what happened instead
We review all accessibility feedback personally and aim to respond within 7 business days. Where a reported barrier is confirmed, we will work to address it and update this statement accordingly.
Formal Complaints
If you are not satisfied with our response to an accessibility concern, you may wish to contact the relevant national enforcement body for accessibility standards in your country. In the United Kingdom, this is the Equality and Human Rights Commission. In the United States, the relevant body depends on the context of the accessibility complaint.
Review Schedule
This accessibility statement is reviewed and updated at least once per year, or whenever significant changes are made to the site’s structure or tools. Outstanding issues identified in this statement are tracked for resolution on an ongoing basis.
Related Pages
- How It Works — how the tools measure vocal range
- Troubleshooting — fix technical issues with tools
- FAQ — common questions about the site and tools
- Contact — report an accessibility barrier
This Accessibility Statement is written and maintained by John Mayer, founder of VocalRangeTester.com. Last updated: June 2026.