Cul-de-sac hypernasality test with pattern recognition of LPC indices.

@article{Haapanen1996CuldesacHT,
  title={Cul-de-sac hypernasality test with pattern recognition of LPC indices.},
  author={Mika Haapanen and Li-gang Liu and Timo P Hiltunen and Lea Leinonen and Janne Karhunen},
  journal={Folia phoniatrica et logopaedica : official organ of the International Association of Logopedics and Phoniatrics},
  year={1996},
  volume={48 1},
  pages={35-43}
}
Acoustic differences between samples of [i], [u], and [a] uttered in nose-open and nose-obstructed condition were studied in 6 women with isolated cleft palate and pathological nasalance scores and 9 healthy women with normal nasalance scores. The speech samples were depicted by 14-component vocal tract area feature vectors obtained by linear prediction and the differences between the samples were studied with a self-organized feature map. Each location on the map corresponds to a certain… CONTINUE READING

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