Tone generator

Test tones and beeps, as WAV.

What it does

Makes a test sound, plays it and downloads it as a WAV file (24-bit, lossless), ready for Premiere, Resolve, Final Cut or a DAW.

Tone: a pure sine, 1 kHz by default; or a square, sawtooth or triangle wave (no harmonics above half the sample rate: no aliasing). At −20 dBFS (SMPTE) or −18 dBFS (EBU), it’s the reference tone at the head of a master, with the bars of the Test pattern tool.
Sync beep (2-pop): 1 kHz for one single frame, at your frame rate. Put it 2 seconds before the first image to line up sound and picture.
Bleep: the beep that covers a swear word.
Sweep: from 20 Hz to 20 kHz, to hear what speakers or headphones really play, and find what rattles.
Noise: pink (the reference to match levels, it sounds even to the ear) or white (brighter).

dBFS: 0 is the loudest a file can go. The level is the peak of the tone; noise has the same power.
48 kHz for video, 44.1 kHz for music.
Why WAV rather than MP3: MP3 alters test sounds and adds a short silence at the start, which breaks a sync beep.
On a computer, Space plays or stops.

Free, no account, nothing is sent: it runs in your browser, even offline.