test tone
Equipment check sound
A test tone is a sustained audio signal at a specific frequency, used to calibrate equipment, check audio levels, or verify that a system is working.
Broadcast networks send test tones before programming to ensure proper transmission.
Recording engineers use test tones to set levels: We ran a 1kHz test tone before the session.
The familiar beep before emergency broadcasts is a test tone.
- signalMessage-conveying cue
- broadcast signalWirelessly transmitted media wave
- calibrationAdjusting for measurement accuracy
- beepShort electronic tone
- frequencyRate of recurrence
frequency response · sine · sine wave · audio · broadcast · emergency alert · color bars · reference · hertz · dial · static · dead air · technical difficulties · equipment · oscillator · pitch · steady · hum
- sound testingmic check, frequency response
- tape recordingtape, cassette tape, audio tape, magnetic tape, tape reel
- mixer controlsfader, knob, slider, pan, mute
- test instrumentsoscilloscope, multimeter, voltmeter, ammeter, ohmmeter
test tonelive performance
Unrecorded staged entertainment
live broadcast · concert recording · radio broadcast · musical composition · artistic expression
test tonesymphony
Extended composition for orchestra
orchestra · noise · white noise · cacophony
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