Privacy policy

The short version

The microphone signal is analysed in your browser and thrown away immediately. Nothing is recorded, stored or sent to us. There are no accounts. The site shows ads served by Google, which uses cookies as described below.

1. Microphone

The meter uses your microphone only after you tap Start meter and your browser asks your permission. While it runs, the sound is converted into numbers (levels and a frequency spectrum) on your device, a few milliseconds at a time, and the audio itself is discarded. No audio is recorded, saved or transmitted. When you pause the meter or leave the page, the microphone is released.

2. Measurements

The levels shown on the page and the per-second log exist only in the open page. If you tap Export CSV, the file is created on your device and saved where you choose. If you tap Share, a short text summary is passed to your device's share sheet or clipboard.

3. Stored on your device

The site keeps a few preferences in your browser's local storage: theme, weighting, response time, chart view, calibration offset, alert level and the keep-screen-on setting. They never leave your device. You can clear them at any time by clearing this site's data in your browser settings.

A service worker caches the site's files so it works offline. It stores only the site's own pages and assets.

4. Advertising and analytics

The site is free and supported by ads served by Google AdSense. Google, as a third-party vendor, uses cookies to serve ads on this site. Google's advertising cookies let it and its partners serve ads based on your visits to this site and other sites on the internet. Third-party vendors and ad networks may also use cookies, web beacons or similar technologies to measure ads and to show ads relevant to you.

You can opt out of personalised advertising in Google's Ads Settings, or opt out of many third-party vendors' use of cookies at aboutads.info. Google explains how it uses data from sites that use its services in How Google uses information from sites or apps that use our services. Where required, for example in the EEA and UK, you'll be asked for consent before personalised ads are shown.

Audio and measurements are never shared with advertisers.

The site uses Google Tag Manager and Google Analytics to count visits and see which pages are used. They collect standard usage data such as pages viewed, device type and approximate location, and may set cookies. This data is processed by Google under its privacy policy; we never receive anything you measure.

5. Hosting

The site is served by Cloudflare. Like any web host, it processes standard request information (IP address, browser user agent, requested page and time) to deliver the site and protect it from abuse, under Cloudflare's privacy policy. We don't use this to build profiles.

6. Children

The site is for a general audience and doesn't knowingly collect personal information from children.

7. Your rights

Laws such as the GDPR and CCPA give you rights over personal information a service holds about you. We hold no accounts and none of your audio or measurements. For anything relating to ads, use the opt-outs above or contact Google. For anything else, email hello@dbmeters.com.

8. Changes

If this policy changes, the date at the top will change too. If we ever add something that collects more data, we'll update this page before it goes live.