Period
- Input
- 1000 / 1000
- Expected output
- 1 ms
One cycle per millisecond.
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1000 hz tone
Opens on 1000 Hz, sine wave, both sides and at a low level (-30 dBFS). To test the channels, send the tone to the left only or the right only and confirm the sound comes from the right side.
One cycle per millisecond.
At 20 degrees, speed of sound 343 m/s.
Not a whole number.
B5 is 987.77 Hz.
10 to the power of -30/20.
From 1 Hz to 22 kHz, limited by the Nyquist limit of your audio: half the sample rate. On a 44.1 kHz device the technical ceiling is 22.05 kHz and the tool uses 22 kHz. If your audio runs at a lower rate the frequency is reduced and a notice appears. Human hearing spans roughly 20 Hz to 20 kHz in young people, so below 20 Hz you feel vibration instead of hearing it, and above 18 to 20 kHz many people hear nothing at all.
At a low volume, no. At a high volume any continuous tone can cause discomfort and, with long exposure, damage. Start with the device volume low, avoid in-ear canal headphones and stop if you feel discomfort.
Change the tone channel to "Left only" and check that the sound comes out of the left. If it comes out of the right, the headphones are on backwards or the system balance is swapped. The stereo audio test in the sibling tool does the same and also checks phase.
Yes, from 1 to 120 seconds, at 44.1 or 48 kHz, 16-bit stereo and a peak at -20, -12 or -6 dBFS. One minute at 44.1 kHz is about 10.1 MB.