Table 5.
Formant bandwidth reported in several studies. Shown are the language and speaker description, number of vowels studied, and formant bandwidths (B1, B2, and B3). Range and standard deviations (s.d.) are included for studies reporting these values.
| Source | Language and Speakers | Number of Vowels | B1 | B2 | B3 |
|---|---|---|---|---|---|
| Benavides et al. (2015) | Spanish, adults | 5 | 84 (range of 5 to 588) |
117 (range of 12 to 1485) |
183 (range of 22 to 1650) |
| Bogert (1953) | English, male adults | 10 | 130 | 100 | 185 |
| Childers & Wu (1993) | English, adults | 10 | 140 | 149 | 223 |
| Dunn (1961) | English, adults | 10 | 50 | 64 | 115 |
| Fant (1962) | Swedish, adults | 10 | 48 | 50 | 98 |
| Hana, Smith, & Wolfe (2016) | Australian English, male adults | 1 | 85 s.d. = 30 |
90 s.d. = 25 |
85 s.d. = 20 |
| Hana et al. (2016) | Australian English, female adults | 1 | 75 s.d. = 30 |
90 s.d. = 25 |
90 s.d. = 20 |
| House & Stevens (1958) | English, adults | 9 | 52 | 62 | 67 |
| Krishna & Rajashekhar (2013) | Teluga, adults | 10 | 57 | 136 | 230 |
| Penny, Russell, & Pemberton (1994) | Australian English, female adults recorded in 1945 and 1992 | 11 | 1945 recording: 227 s.d. = 45 1992 recording: 234 s.d = 52 |
1945 recording: 407 s.d. = 80 1992 recording: 238 s.d. = 98 |
NA |
| Robb, Chen, & Gilbert (1997) | English, children (ages 4, 8, 15, 18, 25 months) | Not specified | 4 mo. – 350 8 mo. – 260 15 mo. – 247 18 mo. – 191 25 mo. – 170 |
4 mo. – 671 8 mo. – 490 15 mo. – 416 18 mo. – 345 25 mo. – 360 |
NA |
| Robb, Yates, & Morgan (1997) | English, adults | 3 | 79 | 99 | NA |
| Whiteside & Hodgson (1999) | English, 6- to 10-year-old children | 1 | 193 | 190 | 263 |