SOUND TOOLS
Online speaker test
Check left, right and combined playback. Listen for channel routing and obvious distortion at low volume.
Start quietly. Stop immediately if uncomfortable. Volume settings are not calibrated safe levels.
Ready when you are
Playback stops when you leave or hide this tab. Locking the screen may also stop browser audio.
01 / Meter
How to use this tool
- Lower volume and place speakers safely.
- Play the left and right channels separately.
- Compare both channels and stop before changing cables.
02 / FAQ
Frequently asked questions
Why do both speakers play a left-channel test?
Mono audio, spatial processing or device routing may mix channels. Check your output settings.
What are the limits?
This is a listening check, not a laboratory frequency-response or phase measurement.
03 / IPHONE APP
Keep your noise checks together
dB Pulse: Decibel Meter is for iPhone with iOS 26+. Keep track of daily noise dose, sustained-noise alarms, saved sessions, Lock Screen Live Activity and widgets.
Pro adds advanced alarms, a spectrum analyzer, unlimited history, report export, session notes, supported microphone profile matching and an Apple Watch meter.
Back to the meter ↗