Terms of use
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SoundLevelTest.com provides general-purpose browser tools and educational information. By using the site, you acknowledge the limits described below.
Estimated measurements
Sound-level readings are estimates and may vary by hardware, browser, environment, placement, software processing, and calibration. Do not use these readings as legal, occupational, clinical, safety-certification, or compliance measurements. Use an appropriately calibrated professional meter and qualified guidance when a decision depends on verified sound levels.
Safe use of audio tools
You are responsible for choosing a safe playback volume when using the speaker test. Begin at a low system volume, avoid prolonged tones, and stop immediately if a sound is uncomfortable. The site does not control the output capability of your device, headphones, or speakers.
Educational information
Sound examples and exposure guidance are provided for general understanding. Sources can change, standards can differ by jurisdiction, and individual circumstances vary. Follow applicable workplace rules and seek qualified advice where needed.
Acceptable use
You may use the public tools for lawful personal, educational, or workplace reference. Do not attempt to interfere with the site, bypass security controls, misrepresent estimated readings as certified measurements, or use the tools in a way that risks harm to another person.
Availability and corrections
The site may be updated or temporarily unavailable, and no uninterrupted availability is promised. Factual corrections and technical problems can be reported through the contact page.
Content and embedding
You may link to any page and embed the decibel chart using the provided embed code, provided the attribution link remains visible. Do not copy whole pages or present the site content as your own work. Trademarks and third-party sources referenced on the site belong to their respective owners.
Image reuse and licensing
The original charts and diagrams published on this site — including the decibel chart, the hearing exposure guide, the speaker and tone generator diagrams, and the situational sound graphics — are released under the Creative Commons Attribution 4.0 International licence (CC BY 4.0).
Copyright © 2026 Nayeem, SoundLevelTest.com. You may copy, share, adapt, and republish these images, including commercially, at no cost and with no separate permission request, provided you credit the source and link back to the page the image came from. A suitable credit line is: “Chart by Nayeem, soundleveltest.com, CC BY 4.0.” Please do not alter the figures or labels in a way that changes the data shown, and do not imply that this site endorses your use. For anything outside these terms, ask through the contact page.
No warranty
The tools and information are provided as they are, without guarantees of accuracy for a particular purpose. To the extent permitted by law, the site is not responsible for decisions made solely on the basis of estimated readings. These terms may be updated when the site changes, and continued use means you accept the current version.