Standalone
- Unzip, run
stringtuner.exe. - Options > Audio/MIDI Settings: ASIO, your interface, the input your instrument is in.
- The input is live from the start; MUTE silences the output.
One tuner for every string instrument: C0 (16 Hz) to C8 (4186 Hz), within 0.4 cents.
Pick your instrument and it shows the open strings; play one and the nearest lights up. A needle for the cents, a strobe for the last bit of precision.
free · Windows 10/11 64-bit · VST3 + standalone app (ASIO) · v0.1.0
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Uses your microphone; nothing leaves your computer. The plugin hears more precisely (and lower), but this gets you close.
-
-50-250+25+50
press START and play a string
Instruments
How it hears the pitch
- YIN pitch detection, with the difference function done by FFT so the long window the lowest strings need (a fifth of a second) stays cheap.
- Measured again exactly across as many periods as fit, so the highest notes, only a dozen samples long, still land within a fraction of a cent.
- A big string with a weak fundamental doesn't fool it into reading an octave up.
- Tested on every semitone from C0 to C8 at 44.1, 48, 96 and 192 kHz: within 0.4 cents everywhere. pluginval strictness 10: passed.
Plug in
VST3
- Copy
stringtuner.vst3toC:\Program Files\Common Files\VST3. - Rescan plugins in your DAW and put it on the instrument's track.
"Windows protected your PC"?
The files aren't code-signed, so SmartScreen may warn you. Click More info > Run anyway.