WHISTLED MELODY WORKFLOW
Record or upload one clear whistled melody, convert it below, then inspect the note preview before downloading the .mid file. If high notes disappear or appear an octave low, test whether the High pitch-range control reaches them; its maximum is 2000 Hz. A clean sustained tone and distinct note changes give the detector one intended pitch at a time.
PROCESS ON THIS DEVICE
Use a short solo phrase for the first pass. Compare its preview with the source before adjusting a control.
INPUT RECORDING / MP3 / WAV / M4A / FLAC / OGG → OUTPUT .MID
or click to choose audio from your device
MP3, WAV, M4A, FLAC, or OGG · one file · up to 50 MB / 5 minutesRESULT
Your audio stays on your device. All processing happens in this browser. No file is uploaded to a server.
LOCAL TEST
With a locally generated, one-second 1500 Hz sine-wave WAV, this converter showed MIDI 78 at the default 65–1200 Hz window. Keeping the same file and raising only High to 1800 Hz changed the preview summary to MIDI 90. These are observed results for that synthetic signal, not an accuracy claim for real whistling.
REPEAT IT
Start at the defaults and note the pitch shown in the preview. Raise High without replacing the recording; then compare the same note. Keep the change only if the intended melody improves. Source noise and unstable pitch can still cause a different result.
| What you observe | Check the source | One test | Keep the change when |
|---|---|---|---|
| Highest whistle note is missing | Listen to the same note in the source | Raise only the High pitch edge | The intended note appears without new outliers |
| A high note appears an octave lower | Check whether its source pitch may be above the current High bound | Raise only High, then compare the same note | The intended pitch appears without new outliers |
| Air at the start becomes a fragment | Listen for noise before the steady tone | Re-record with a cleaner attack; then compare | The extra block disappears while the note onset stays |
| Quiet notes disappear | Confirm the source note is audible | Lower Silence threshold one step | The note returns before room noise creates extras |
| Short specks remain between notes | Compare their duration with real short notes | Raise Minimum note one step | Specks vanish and intended short notes remain |
RANGE
The pitch detector searches between the Low and High values. When a source pitch is above High, it may be missed or represented by a lower periodic candidate; raising High can help expose the intended pitch. A tone inside the window can still fail if its signal is weak or unstable.
SOURCE
Whistling can begin with broadband air before a stable tone. Make a cleaner onset in the source first; do not treat threshold as a repair for every noisy attack.
COMPARE
Mark a missing note, fragment, or octave outlier in the preview. Adjust one control and compare that exact spot before keeping the new setting.
OUTPUT
The .mid download contains detected pitches and timing, not the original whistle sound. Choose an instrument when you open it in a DAW.
QUICK ANSWERS
Yes. Record or upload a clear solo whistle, convert it in this browser, inspect the note preview, and download the .mid file.
First check that the note is audible in the source. If it exceeds the current High pitch bound, raise that bound and compare the same phrase. The control ends at 2000 Hz.
No. A weak, airy, or unstable tone can still produce no stable estimate. Check the recording and change one variable at a time.
In a local synthetic 1500 Hz test, the default High bound produced MIDI 78 while raising it to 1800 Hz produced MIDI 90. Test the same note with a wider High window and keep the change only if the rest of your phrase improves.
No. Audio decoding and note detection happen in this browser. The audio file is not uploaded to a server.