Your microphone stays in your browser.

RoomTone is designed to show relative room loudness without collecting conversations, student voices, or recordings. This page also explains cookies, analytics, and third-party advertising on the website around that tool.

Last updated 30 September 2026. Operator contact: hello@classroomnoise.live.

Who we are

This policy applies to the independent website classroomnoise.live (“RoomTone”, “we”). It is written for teachers and other adults who open the site. For who we are and how to reach us, see About and Contact.

What happens when you click Start

Your browser asks for microphone permission. If you approve, RoomTone reads short waveform snapshots through the Web Audio API, calculates their root mean square loudness, and immediately converts that into a relative level and traffic-light state on your device.

What RoomTone does not do

• It does not create an audio recording.
• It does not upload microphone samples to a server.
• It does not transcribe or identify speech.
• It does not create student profiles or accounts.
• It does not save a history of classroom noise.
• It does not request the precise geolocation API.

Local settings (essential storage)

Selected game theme, activity preset, thresholds, sensitivity, recovery time, and alert preference are stored in your browser's local storage so the room can reopen with the same setup. Your cookie-consent choice is also stored locally. These items are essential to operating the tool and remembering your privacy choice. Clearing site data removes them. They are not used to advertise to you.

Stopping microphone access

Pause the monitor or close the page to stop the microphone track. You can revoke access at any time through your browser's site permissions.

Cookies and similar technologies

A cookie is a small file stored on your device. Similar technologies include local storage, pixels, and advertising identifiers. RoomTone uses them in three groups:

• Essential. Local storage for noise-game settings and for storing whether you accepted or rejected non-essential cookies. The live monitor can run without advertising cookies.
• Analytics. If you accept, Google Analytics 4 may set cookies or read identifiers to understand page visits and product usage, such as which pages are opened and how the site is used.
• Advertising. If you accept, Google and other advertising partners may set or read cookies and identifiers to serve, measure, and (where allowed) personalize ads.

The consent banner lets you accept or reject non-essential cookies. You can reopen it from Cookie settings in the footer. Browser controls can also block cookies; blocking all cookies may forget your settings and consent choice.

Website analytics

If you accept non-essential cookies, RoomTone uses Google Analytics 4 to understand page visits and product usage. This includes which game cards are viewed and selected, successful game starts, active monitoring duration, selected activity presets and goal durations, goal progress and completion, and start errors. These interactions help us compare which games adults choose and use. Interactions before acceptance or after rejection are not queued for later collection.

Analytics does not receive microphone audio, recordings, waveform samples, speech, student names, the relative room level calculated by the monitor, or a breakdown of time spent at different noise levels. Google may process device, browser, approximate location inferred from IP address, and interaction data according to its own privacy terms and your browser or Google account controls. Analytics cookies run only after you accept non-essential cookies.

Third-party advertising, cookies, and identifiers

This site uses Google AdSense and may show ads from Google and other third-party advertisers or ad networks. Third parties use cookies, web beacons, pixels, and similar identifiers to collect information about your visits to this site and other sites in order to provide advertising, to measure whether ads were shown or clicked, and, where permitted, to personalize ads based on inferred interests (sometimes called interest-based advertising or IBA).

Google, as a third-party vendor, uses cookies to serve ads on this site. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to classroomnoise.live and/or other sites on the internet. These companies may also use web beacons or similar technologies to collect information about your visits in order to measure advertising effectiveness and to serve more relevant advertising.

We do not send microphone audio, student names, email addresses, or other classroom personal information to advertising systems, and we do not build remarketing lists from student data. Advertising identifiers are about the website visitor's browser, not about a student roster.

You can opt out of personalized Google ads at https://www.google.com/settings/ads. You can also visit https://policies.google.com/technologies/ads, the NAI opt-out at https://optout.networkadvertising.org/, and the DAA opt-out at https://optout.aboutads.info/. Rejecting non-essential cookies in our banner tells our own scripts not to enable analytics storage or ad storage; independent opt-out tools are still the way to control participating third parties across the web.

If you visit from the European Economic Area or the United Kingdom, Google's EU user consent policy may require a certified consent management platform before personalized ads are served. Until such a CMP is configured for this site, treat advertising as limited by your banner choice and by Google's own consent mode defaults (storage denied until you accept).

Children

RoomTone is intended for teachers and other adults. It is not directed at children under 13, and we do not knowingly collect personal information from children. Students may see a projected game; they should not create an account (none exists) and should not be asked to enter names or emails into this site. If you believe a child has sent us personal information, email hello@classroomnoise.live and we will delete it from the inbox.

Approximate location

We do not ask the browser for precise GPS or Wi-Fi location. Analytics and advertising partners may infer a coarse location from IP address. That is not classroom GPS tracking.

Your choices and rights

You can refuse non-essential cookies, use browser private mode, or clear site data. Depending on where you live, you may have rights to request access to or deletion of personal information we hold — for this site, that is typically an email you sent us, not microphone audio (we do not have it). We do not sell student information. We do not sell personal information in the common classroom sense of handing over a roster; advertising cookies are described above so you can opt out.

Changes

If the way we use cookies, analytics, or ads changes, we will update this page and the date at the top.

Contact

Privacy questions: hello@classroomnoise.live.