Sound Test Online

「左チャンネル」「右チャンネル」でそれぞれの音を再生し、片側だけから聞こえるか確認します。両方から鳴る/片側が無音の場合は配線やバランス設定を確認してください。

はい。マイク許可を与えるとレベルメーターとピーク表示が出ます。録音や送信は行われません。

20Hz〜20kHzを連続再生し、再生できない帯域や歪みの有無を確認できます。

ホワイトノイズは全周波数に同じエネルギーがあり、TVの砂嵐のように聞こえます。ピンクノイズはオクターブごとに同じエネルギーで、人の耳に自然に聞こえます。

80〜100Hz以下は小型スピーカーやノートPCでは再生が難しいことがあります。低音には大型ドライバやサブウーファーが必要です。スイープで最低再生周波数を確認できます。

To do a quick sound check, click the 'Left channel' or 'Right channel' button on this page. If you hear clear audio from the correct speaker, your sound is working. You can also use the frequency sweep to test bass and treble response, or the noise generators for a full-range sound check. No software installation is needed; this sound test runs entirely in your browser on any computer, laptop, or mobile device.

Yes, this tool works as a headset test for any wired or wireless headset. Plug in or pair your headset, then use the left/right channel buttons to verify both ear cups produce sound. The stereo test confirms channels aren't swapped. You can also test your headset's built-in microphone using the mic monitoring section. Works with gaming headsets, Bluetooth headsets, and USB headsets on any platform.

To test if your speakers are working, click the play buttons on this page to send test tones to your left and right speakers individually. If one speaker is silent, check your cable connections, audio balance settings, and make sure the correct output device is selected in your system settings. The frequency sweep can also reveal if your speakers have limited range or distortion at certain frequencies.

To test bass on your speakers, use the 60Hz preset button in the sine tone section, or run the full frequency sweep starting from 20Hz. If you can't hear frequencies below 80-100Hz, your speakers have limited bass response, which is typical for laptop speakers and small desktop speakers. A subwoofer or bass-capable headphones should clearly reproduce frequencies down to 40-60Hz. Listen for distortion at low frequencies, which may indicate a damaged speaker driver.

One-sided audio is usually caused by: 1) A loose or damaged headphone cable near the plug; try wiggling the cable. 2) An incorrect audio balance setting in your system; check System Preferences or Windows Sound settings. 3) A faulty headphone driver or speaker. Use our left/right channel test to confirm which channel is affected. If the correct channel plays when you press 'Left' or 'Right', the problem is in your hardware, not the audio signal.

Yes, this sound test works on mobile browsers including Chrome for Android and Safari on iOS. Connect your headphones or earbuds and use the left/right channel buttons to test stereo separation. The frequency sweep also works on mobile. Note that the microphone test may require additional browser permissions on mobile. For the most reliable results, use Chrome on desktop with wired headphones.