SInES Tools: Spectral Warper (Shift partials from harmonic to inharmonic relationships)
 
1. Upload Audio File
2. Warp Configuration
Stretch Factor
1.01
(<1.0 = Compressed | 1.0 = Harmonic | >1.0 = Stretched/Metallic)
3. Play & Export
Upload an audio file to begin.
 Analysis Parameters: Window Size: 4096 Samples (YIN Pitch: 2048 Samples) | Hop Size: 1024 Samples
| FFT Size: 4096 | Sample Rate: dependent on audio file
Spectral Warper © 2026 by Christoph Reuter and SInES (last modified: 13.9.2026) is released under MIT License
Translation of the Chinese version of the website: Li Hao
How to cite: Reuter, C. (2026). SInES Tools: Spectral Warper. Web Application https://sinestools.univie.ac.at/spectral_warper.htm