SInES Tools: Voice Range and Timbre Profiler

1. Set your voice or instrument and dB Calibration in Section 1 below.
2. Upload audio files for your fff (loud) and ppp (soft) recordings in all registers .
3. Click "Analyse" to extract a big bunch of audio features for musical instruments or singing/speaking voice analysis.
4. Explore the Phonetogram and the detailed Timbre Sections.
5. Hover directly over the data points to playback the original audio file.
6 View and export Data Table as CSV Export.
7 View and save the Summary Report & Evaluation

1. Settings: Calibration, Voice or Instrument Selection

dB SPL Calibration:
A recorded peak level of dB_FS corresponds to dB_SPL

Voice / Instrument:
Select the voice or instrument to adapt the report
Register Boundaries: Low to Mid Register Boundary: | Mid to High Register Boundary:

Instrument Presets (Open Strings):
Display vertical lines for open strings (line charts only):

Pitch Tracking Correction:
Method to prevent octave jumps in the pitch analysis:

Audio Segmentation:
Auto-Segment continuous audio at pauses > 100ms (highly recommended for speech)

Analysis Parameters: Window Size (Buffer Size): 2048 Samples (Feature Extraction), 4096 Samples (Roughness & Formant LPC), 512 Samples (Envelope) | Hop Size: 512 Samples (Main Analysis), 128 Samples (Envelope) | FFT Size: 2048 (CPPS / Features), 4096 (Roughness & Formant Spectrum) | Sample Rate: dependent on audio file

2. Phonetogram (Voice Range Profile)

3. Formant Tracks (fff vs. ppp)

Dotted lines represent the linear trend of each formant within the respective register (Low, Mid, High).

4. Formant Field (Vowel Space: F1 vs F2)

Displays formant concentrations separated by dynamic and register. Hover for details.

5. Timbre Explorer

Select Feature for Y-Axis:

6. Timbre Fingerprint

Compares the global characteristics of the fff and ppp registers. Values are normalized globally.

7. Tuning, Intonation, Pitch Stability & Inharmonicity

Top: Pitch deviation from the nearest equal-tempered note (A4 = 440 Hz) in Cents.
Middle: Spectral Inharmonicity (Deviation of harmonics from the ideal harmonic series).
Bottom: Pitch Instability (Standard deviation of pitch within the file in Cents, e.g. Vibrato/Wobble).

8. Modulations (Vibrato & Tremolo)

Compares Vibrato (Pitch Modulation/FM) and Tremolo (Amplitude Modulation/AM).

9. Time Domain (Attack, Sustain, Release, Envelope & Shape)

Compares temporal envelope features (Attack, Sustain, Release) and distribution parameters.

10. Roughness, Spectral Flatness, CPPS, H/P, OER & Noisiness

Compares Psychoacoustic Roughness, Spectral Flatness, Smoothed Cepstral Peak Prominence (CPPS), Harmonic/Percussive, Odd/Even Harmonic Ratio and Noisyness over pitch.

11. Data Table

12. Summary Report & Evaluation

Run an analysis to generate the report.