Audio Test
Минимальная тестовая страница для нового раздела Audio. Нажмите кнопку, чтобы воспроизвести короткий тон прямо в браузере.
Минимальная тестовая страница для нового раздела Audio. Нажмите кнопку, чтобы воспроизвести короткий тон прямо в браузере.
Tool guide
When there is no sound, the first job is to find where the chain breaks: the device itself, the system settings, or one particular site. This page gives you the simplest possible cut — a short sine tone the browser synthesises on its own through the Web Audio API. No file, no microphone, no permission prompt. If you hear the tone, output and browser are fine and the fault lies in the app you were using. If not, start with volume, output device and cable. See also: check how loud a video is before you publish it, pull the audio track out of your own video, shrink a WAV recording to MP3 in the browser.
A synthesised sine tone rather than an audio file. The browser builds an oscillator through the Web Audio API and routes it to your current output device. Nothing is downloaded, so the check works on a slow or restricted connection and does not depend on any codec being installed.
Browsers forbid sites from making noise without a user gesture, so tabs cannot start blaring on their own. The audio context stays suspended until the first click, which is why the tone only appears after you press the button. That is a browser rule, not a setting of this page.
No. The tool is output-only: it records nothing and never asks for microphone access. Testing capture needs a separate tool that requests permission and shows an input level meter. What you learn here is strictly whether audio reaches your speakers or headphones.
Then the output device and the browser are fine. Look at the system volume mixer next: individual apps, and sometimes individual tabs, have their own slider that may be sitting at zero. Also check that the app is not pointed at another device, such as an HDMI monitor with no speakers.
At moderate volume yes, but start quiet. A steady sine is perceived as louder than music of the same amplitude and becomes fatiguing at full volume. Set the level to about a third, press the button, and raise it only if you need to.
Yes, mobile Chrome and Safari start the tone the same way, on a tap. Two things to keep in mind: the silent switch on an iPhone can mute the output entirely, and with Bluetooth headphones paired the sound goes to them rather than to the phone speaker.
Before: You cannot hear the other side and cannot tell what is at fault
After: The tone plays, so output works and the problem is the device picked inside the call app
Before: The headset is paired but the system lists two output devices
After: The tone only plays on the correct one, which shows you which device is actually active
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