Audio playback & microphone input

Audio tests.

Seven audio tools that run in your browser, with nothing to install. Five play sound: find which channel is playing, check how headphones are wired, test your sense of pitch, clear water from a speaker grille, or play a tone at any frequency. Two listen through your microphone: one names the note you play or sing, and the other records the lowest and highest notes you sing. To check a microphone before a call, use Camera & Mic.

• Utility

  Water Eject

  Play a 220 Hz to 110 Hz sweep for a speaker that got wet, and watch the relative cone travel rise as the tone descends.

• Scored test

  Perfect Pitch Test

  Name a tone with no reference, or compare pairs of tones as the gap narrows to see how small a pitch difference you can pick out, in cents.

• Scored test

  Headphone Test

  Six shuffled trials that hide which side is playing, so swapped wiring can show up. Your answers point to matching channels, swapped sides, a silent side or mono output.

• Instrument

  Sound Test

  Play left, right or both channels to find a dead channel or a swapped cable.

• Instrument

  Tone Generator

  Play a clean tone at a frequency you choose, to check a speaker's range or listen for buzz.

• Instrument

  Pitch Detector

  Name the note you play or sing, with its hertz and cents against A4 = 440 and the clarity figure behind the estimate.

• Instrument

  Vocal Range Test

  Sing down, then up, within a comfortable range. See the lowest and highest notes it recorded, the readings behind each, and the span in semitones and octaves.