| Frequency | Different types of emotions of people | ||
| Joy | Sorrow | Anger | |
| Mean frequency (Hz) | 347 (1st person) | 323 (1st person) | 376 (1st person) |
| 366 (2nd person) | 313 (2nd person) | 380 (2nd person) | |
| 372 (3rd person) | 319 (3rd person) | 396 (3rd person) | |
| 360 (4th person) | 322 (4th person) | 402 (4th person) | |
| Maximum frequency (Hz) | 453 (1st person) | 428 (1st person) | 508 (1st person) |
| 481 (2nd person) | 423 (2nd person) | 497 (2nd person) | |
| 456 (3rd person) | 433 (3rd person) | 514 (3rd person) | |
| 473 (4th person) | 416 (4th person) | 518 (4th person) | |