Resample pitch and speed
Change pitch and duration together by a resample factor, including semitone shift and output sample rate.
Runs in your browserEvery computation happens in your browser — your data never leaves this device.
Audio metadata
Plan
Samples or duration
Enter data to see results
Stat: 0 · Stat 2: 0
What this tool does
- Check parameters before transcoding
- Convert time into samples or filters
Example
Input
{"duration":10,"sampleRate":48000}Output
{"operation":"resample","factor":2,"pitchShiftSemitones":12,"outputDuration":5}Computes an assertable plan or sample range. It does not touch devices or transcode files.
Frequently asked questions
Does it process the file?
No. It returns a plan, command, or sample range and never decodes media.
May numbers be strings?
Yes. Numeric strings from text controls are parsed as numbers.
Does it match ffmpeg exactly?
Times, filters, and bitrate formulas are deterministic; container overhead can still differ.
Keywords：变调重采样半音resampleaudio