SInES Tools: Time Stretcher (Extend the length of an audio file without artifacts even over long durations).
 
1. Upload Audio File
2. Stretch Setting
Original Duration: --:--
Target Duration: --:--
3. Process
4. Result
Upload a file.
 Analysis Parameters: Window Size: 4096 Samples | Hop Size: 1024 Samples | FFT Size: 4096 | Sample Rate: dependent on audio file
Time Stretcher © 2026 by Christoph Reuter and SInES (last modified: 14.9.2026) is released under MIT License
Translation of the Chinese version of the website: Li Hao
How to cite: Reuter, C. (2026). SInES Tools: Time Stretcher. Web Application https://sinestools.univie.ac.at/timestretcher.htm