| Accent Shape | The height of a pitch accent over tme. With more sophistication on the part of the synthesizer, one could more precisely specify the steepness of the pitch contour ascent and descent. |
| Contour Slope | Pitch range expansion or compression over the course of an utterance. |
| Final Lowering | Steepness of pitch fall or rise at end of utterance. |
| Pitch Range | Distance in Hz from lowest to highest F0 value. |
| Reference Line | The modal F0 (default pitch) of an utterance. |
| Fluent Pauses | Pauses between syntactic phrases. |
| Hesitation Pauses | Pauses within a syntactic or intonational phrase. |
| Speech Rate | Rate of speech, measured in syllables per second. |
| Stress Frequency | Percentage of pitch-accentable words that actually receive a pitch accent. |
| Average Pitch | Average pitch. |
| Breathiness | Frication in the voicing source. |
| Brilliance | Attenuation or amplification of high frequencies. |
| Laryngealization | "Creaky voice" phonation mode. |
| Loudness: | Loudness. |
| Pitch Discontinuity | Smoothness of the pitch contour between successive F0 targets. |
| Pause Onset | Smoothness of word decay and subsequent pause onset. |
| Precision | Closeness of phoneme to its full articulation. |
