SInES Tools: Feature Morpher

SInES Tools: Feature Morpher
(Audio morphing with time warping, pitch tracking and formant correction according to Caetano & Rodet 2013)

1. Load Sounds

Intended for single, quasi-harmonic instrument tones. Max 15s per file.

No file loaded.

Upload two audio files to begin.

2. Morph Settings

Morph Mode: Static Dynamic A → B Step Sequence

Share of Sound B 50 %

Parameters to Morph:

Spectral Envelope Pitch & Partials Temporal Envelope Temporal Alignment Residual Noise

Spec. Env Method:

Temp. Env Method:

3. Result & Export

0:00 / 0:00

4. Linearity Analysis

Deviation of acoustic features from linear interpolation (0 to 1). Straight line = perfect linearity.

Analysis Parameters: ACT Segmentation | LSF Order: 30 (Harmonics), 16 (Noise) | Hop Size: 441 (10ms) | Sample Rate: 44100 Hz

Feature Morpher © 2026 by Christoph Reuter and SInES (last modified: 14.11.2026) is released under MIT License
Translation of the Chinese version of the website: Li Hao
How to cite: Reuter, C. (2026). SInES Tools: Feature Morpher. Web Application https://sinestools.univie.ac.at/caetanomorph.htm