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Articulating finnish vowels: results from MRI and sound data (LU XLVIII 2012, 194-199).

Corrigendum for Section 3. Results (October 28, 2012) (see corrected version also at: http://www.kirj.ee/public/Linguistica_Uralica/2012/issue_3/ling-2012-3-194-199.pdf)

The formant data for [e] and [i] was manually adjusted to correct the following artefacts. For [e]: the LPC found a peak at 272 in the begin sample but this was removed as an outlier. For [i]: First, the LPC found peaks at 987 Hz (begin) and 722 Hz (end) but these were removed as outliers. Second, F2 could not be extracted from the beginning sample by the LPC. The value in Table 2 was obtained by visual inspection of the compensated spectrum. Third, the LPC found very strong double peaks about 500 Hz apart corresponding to the actual F3. Accordingly, the F3-values given in Table 2 are defined as their means. Adjusted values are marked in bold face as well as values which have shifted to a lower formant position (e.g. F2 to F1) as the result of removing an outlier.

The specialised formant extraction algorithms used for the noisy data in the current context are likely to undergo several improvements in the future. Thus, we provide updated results from our work as they become available at http:// math.aalto.fi/en/research/sysnum/formant_extraction.html. The page includes short descriptions of the algorithms used and tables listing the corresponding extraction results.

LINGUISTICA URALICA. SUPPLEMENTARY SERIES

Volume 1. Estonian Language, Tallinn 2003; Second Edition, Tallinn 2007

Volume 2. Ilse Lehiste, Pire Teras, Toomas Help, Partel Lippus, Einar Meister, Karl Pajusalu, Tiit-Rein Viitso, Meadow Mari Prosody, Tallinn 2005

Volume 3. Eberhard Winkler, Karl Pajusalu, Salis-livisches Worterbuch, Tallinn 2009

Volume 4. Heinike Heinsoo, Maja pud levad, meid eb le. The Subject and the Predicate in Votic, Tallinn 2010
Table 2: Original version

[f.sub.0]s and formants F1-F4 for vowel samples with
target [f.sub.0] = 110 Hz

Vowel [a] [e] [i] [o]

[f.sub.0] begin 107.6 108.1 108.4 107.3
 (Hz) end 110.8 109.2 109.4 110.2
F1 (Hz) begin 658 272 255 403
 end 644 524 238 392
F2 (Hz) begin 1059 560 987 753
 end 989 1993 722 717
F3 (Hz) begin 2763 1898 3039 2298
 end 2530 2436 2183 2181
F4 (Hz) begin 3643 2625 3473 3487
 end 3715 3504 3078 3252

Vowel [u] [y] [ae] [o]

[f.sub.0] begin 107.3 108.4 105.3 106.8
 (Hz) end 111.4 110.5 107.6 109.7
F1 (Hz) begin 269 294 748 419
 end 342 303 764 452
F2 (Hz) begin 636 1577 1532 1488
 end 714 1539 1245 1360
F3 (Hz) begin 2186 2057 2278 2008
 end 2160 2012 2373 2088
F4 (Hz) begin 3381 3281 3511 3321
 end 3103 3148 3531 3523

Table 2: Corrected version

[f.sub.0]s and formants F1-F4 for vowel samples with
target [f.sub.0] = 110 Hz

Vowel [a] [e] [i] [o]

[f.sub.0] begin 107.6 108.1 108.4 107.3
 (Hz) end 110.8 109.2 109.4 110.2
F1 (Hz) begin 658 560 255 403
 end 644 524 238 392
F2 (Hz) begin 1059 1898 2220 753
 end 989 1993 2183 717
F3 (Hz) begin 2763 2625 3258 2298
 end 2530 2436 3350 2181
F4 (Hz) begin 3643 3402 4156 3487
 end 3715 3504 4658 3252

Vowel [u] [y] [ae] [o]

[f.sub.0] begin 107.3 108.4 105.3 106.8
 (Hz) end 111.4 110.5 107.6 109.7
F1 (Hz) begin 269 294 748 419
 end 342 303 764 452
F2 (Hz) begin 636 1577 1532 1488
 end 714 1539 1245 1360
F3 (Hz) begin 2186 2057 2278 2008
 end 2160 2012 2373 2088
F4 (Hz) begin 3381 3281 3511 3321
 end 3103 3148 3531 3523
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Title Annotation:Corrigendum for the Original Article
Publication:Linguistica Uralica
Article Type:Correction notice
Date:Dec 1, 2012
Words:636
Previous Article:Zum 70. Geburtstag von Haldur Oim.
Next Article:Feet, syllables, moras and the estonian quantity system.

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