OBJ to STL Converter
A binary STL triangle mesh. Read OBJ vertices and triangular or convex planar faces, calculate normals and write binary STL.
Open toolAudio pitch changer
Resample decoded audio at a playback-rate factor of two to the semitone shift divided by twelve. Pitch and speed change together; duration is not preserved.
Free to useNo sign-upRuns in your browser
Enter your details
Enter the inputs, then select Shift audio pitch.
Your result
Enter your details
Result will appear here
How Audio pitch changer works
Resample decoded audio at a playback-rate factor of two to the semitone shift divided by twelve.
The tool processes the supplied input with browser APIs and bundled local libraries.
How to shift audio pitch
Supply supported input and review the result.
Choose the supported file
Choose Audio file. Processing reads the file in this browser.
Input and settings
Tool result
Review and save the result
Save a PCM WAV with pitch and duration changed together. Check the download in its target application before replacing your source.
Review the details
When to use Audio pitch changer
Try a semitone shift
A positive shift raises pitch and shortens duration. A negative shift lowers pitch and lengthens it.
Review a combined pitch and speed change
The tool uses playback-rate resampling. It does not preserve duration with time stretching.
Save a local audio experiment
The generated PCM WAV can be opened in an audio editor. Keep the source recording for further edits.
What the output contains
Review the format and conversion policy.
A PCM WAV with pitch and duration changed together. Pitch and speed change together; duration is not preserved. Up to 120 decoded seconds and two channels, with shifts from -12 to +12 semitones. No time-stretching or voice model is used.
Keep the original while checking the saved output. The result reflects the input and settings you supplied.
Supported input and limits
Check these conditions before converting.
Pitch and speed change together; duration is not preserved. Up to 120 decoded seconds and two channels, with shifts from -12 to +12 semitones. No time-stretching or voice model is used.
The page does not keep inputs or results after leaving. Keep the source and save the output you need.
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Open toolShift audio pitch with your input
Review the supported output and save your result.
Audio pitch changer: common questions
Answers about using Audio pitch changer and understanding its results.
What output can I save?
Save a PCM WAV with pitch and duration changed together. Pitch and speed change together; duration is not preserved. Up to 120 decoded seconds and two channels, with shifts from -12 to +12 semitones. No time-stretching or voice model is used.
Does the page upload my input?
No. Processing uses browser APIs and bundled local libraries. The selected file or entered source is not sent to a conversion server. Save the result before leaving.