Emotions effect on the human voice
| joy | sorrow | anger | fear | disgust | surprise | |
|---|---|---|---|---|---|---|
| voice quality | breathy and blearing | resonant | breathy with chest tone | irregular and blearing | grumbled with chest tone | breathy and blearing |
| articulation | normal | slurring | tense | precise | normal | tense and precise |
| speech rate | faster or slower | slightly slower | slightly faster | much faster | very much slower | much faster |
| intensity | higher | lower | higher | normal | lower | higher |
| pitch range | much wider | slightly narrower | much wider | much wider | slightly wider | much wider |
| pitch average | much higher | slightly lower | very much higher | very much higher | very much lower | much higher |
| pitch changes | smooth with upwards inflections | downward inflections | abrupt on stressed syllable | normal | wide downward on terminal inflections | rising contour |