| J79-1060 | the need for further research in | pitch control | , a question remains of how to |
| J79-1060 | , Allen ( 1976 ) is working on | pitch control | as an element in his overall |
| W13-3911 | intensity of phonation , variable | pitch control | ( vocal fry ) over the course |
| J79-1060 | lead to significantly improved | pitch control | programs which are based on sound |
| J79-1060 | fundamental frequency $ fO ) , or | pitch control | , are at least as difficult , |
