SInES Tools: Modulation Power House

SInES Tools: Modulation Power House (2D Modulation Power Spectrum Analysis)

1. Click on "Start" to set all values on default.
2. Upload an audio file (.mp3 or .wav file).
3. Optional: select the Analysis Profile or manually adjust STFT / Frequency Scale.
4. Click on "Recalculate" if settings are changed manually.
5. Hover over the charts to see details, click Play in the table to hear isolated modulations.
6. Export Table with Export CSV

Upload a .wav or .mp3 file to start

1. Analysis Profile

Smart Presets

Scale Type

Mel-Bands Linear Hz

2. STFT Settings

Frame Size: 1024

Hop Size: 12.5%

Contrast dB: 50 dB

3. Mel Bands & Zoom

Mel-Bands: 128

X-Zoom Min: -25 Hz

X-Zoom Max: 25 Hz

Modulation Power House © 2026 by Christoph Reuter and SInES (last modified: 24.6.2026) is licensed under is licensed under CC BY 4.0
Translation of the Chinese version of the website: Li Hao
How to cite: Reuter, C. (2026). SInES Tools: Modulation Power House. Web Application https://sinestools.univie.ac.at/mps.htm

1. Analysis Profile

2. STFT Settings

3. Mel Bands & Zoom

1. Sonogram

2. Modulation Power Spectrum (MPS)

3. Strongest modulation peaks