| ID | Term | Platform |
|---|---|---|
| PDE080058214.1 | Glottal to noise excitation ratio using signal-noise ratio (SNR) and signal energy operator (SEO) | Vocal |
| PDE080058215.1 | Glottal to noise excitation ratio using signal-noise ratio (SNR) and Teager-Kaiser energy operator (TKEO) | Vocal |
| PDE080058370.1 | Vocal fold excitation ratio (VFER) using signal-noise ratio (SNR) and signal energy operator (SEO) | Vocal |
| PDE080058371.1 | Vocal fold excitation ratio (VFER) using signal-noise ratio (SNR) and Teager-Kaiser energy operator (TKEO) | Vocal |