BibTeX

@inProceedings{akesson-etal-2010-post-122323,
	title        = {Post surgery effects on VOT for Parkinson Disease STN/DBS patients},
	abstract     = {In this paper we discuss and analyse voice onset time (VOT) pre and post surgical treatment with deep brain stimulation (DBS) in 17 patients diagnosed with Parkinson’s disease (PD) at Sahlgrenska University Hospital in Gothenburg, Sweden. The patients were all at different stages of the disease but
with the common denominator they have all undergone surgery to enhance synaptic responses through bilateral electrode implants in the subthalamic nucleus (STN) region of the brain, also known as Deep Brain Stimulation (DBS).The main focal point of the paper is to compare the pre and post surgery VOT data to see if there were any effects stemming from the STN surgery. Preliminary results for Mean VOT, Standard deviation VOT and percent of unsuccessfully produced/unmeasureable diadochokinetic syllable repetitions are presented and discussed. We found that the standard deviation decreased significantly for the consonant /p/ and this is discussed in the perspective of the ease of articulation of the different plosives.
},
	booktitle    = {Proceedings from FONETIK 2010, Working Papers},
	author       = {Åkesson, Joel and Lindh, Jonas and Hartelius, Lena},
	year         = {2010},
	volume       = {54},
	pages        = {119--124},
}

@inProceedings{lindh-eriksson-2010-voice-122326,
	title        = {Voice similarity — a comparison between judgements by human listeners and automatic voice comparison},
	abstract     = {Comparison between the way human listeners judge voice similarity and how state-of-the art GMM-UBM systems for voice recognition compare voices is a little explored area of research. In this study groups of informants judged the similarity between voice samples taken from a set of fairly similar male voices that had previously been used in a voice line-up experiment. The result from the listening tests was then compared to the scores from a UBM-GMM automatic voice
comparison system, built on the Mistral LIA_RAL open source platform. The results show a correlation between scores obtained from the automatic system and the judgements by the listeners. Listeners are, however, more sensitive to language dependent parameters or idiosyncratic phonetic features such as speaking tempo, while the system only bases its likelihood ratios on spectral similarities, i.e. timbre.},
	booktitle    = {Proceedings from FONETIK 2010, Working Papers},
	author       = {Lindh, Jonas and Eriksson, Anders},
	year         = {2010},
	volume       = {54},
	pages        = {63--69},
}

@inProceedings{lindh-etal-2010-methodological-123919,
	title        = {Methodological Issues in the Presentation and Evaluation of Speech Evidence in Sweden},
	booktitle    = {Proceedings of the 19th Annual Conference of the International Association for Forensic Phonetics and Acoustics, Trier, Germany},
	author       = {Lindh, Jonas and Eriksson, Anders and Nelhans, Gustaf},
	year         = {2010},
	number       = {19},
}

@inProceedings{lindh-2010-preliminary-123920,
	title        = {Preliminary Formant Data of the Swedia Dialect Database in a Forensic Phonetic Perspective},
	booktitle    = {Proceedings of the 19th Annual Conference of the International Association for Forensic Phonetics and Acoustics, Trier, Germany},
	author       = {Lindh, Jonas},
	year         = {2010},
	number       = {19},
}

@inProceedings{hu-lindh-2010-perceptual-125330,
	title        = {PERCEPTUAL MISTAKES OF CHINESE TONES IN 2-SYLLABLE WORDS BY SWEDISH LISTENERS},
	abstract     = {Earlier studies on the perception of Chinese tones have almost exclusively used 1-syllable
words for the listening tests (Kiriloff, 1969; Chuang, 1971; Klatt, 1973; Gandour, 1978). In
these earlier studies the misperception between tone 2 and tone 3 has been shown to be the
most common. However, no studies that we have found have looked at the perception of 2-
syllable words besides Chuang (1971), who only used nonsense words.
By tradition the teaching of Chinese as a foreign language has been concentrated on training
of perception and production of tones since adult students have been shown to show particular
difficulties in perceiving their difference. Experienced teachers have through tests established
that this assumption is not valid when it comes to the so-called static tone. When it comes to
communicating in Chinese and to be able to use the separate tones it is not enough to know
the difference in 1-syllable words especially since most modern words in standard Chinese
contains 2 or more. Guo (1993) has shown that the more syllables a word contains the higher
ratio of misperceived tones.
So far, no investigations for Swedish students have been performed. A possible hypothesis
could be that Swedish listeners would perform better due to the Swedish grave and acute
accents. By asking experienced teachers in Sweden, we knew that this should not be the case
however. The general impressions from teachers are also that Swedish students have the
largest proportion misperceptions between tone 2 and 3. To test this we conducted a listening
test on 27 native speakers of Swedish (9 bilingual Chinese speakers with native ability in
Swedish) on 25 Chinese 2-syllable lexical words with 15 different tone combinations. One
male and one female native speaker of Chinese pronounced the words in isolation. The words
were taken from a random number of 2-syllable glossary. Each speaker repeated the words
once with 1 seconds pause in between the repetition and then 2 seconds pause before the new
word. The audio was presented in high quality headphones in the student language lab at the
University of Gothenburg. The participants were all second semester students of Chinese and
the listening test was also an exam, which made the participants wanting to perform as well as
possible. If they wanted they could repeat the sequence as many times as they until satisfied
with their answer.
The results show that produced tone 1 and tone 2 are confused more than 3 and 4 (tone 4 more
than 3, see figure 1). However, the distribution of misperceptions seems to be rather equally
distributed if we exclude the static tone (below called 0) in contradiction to earlier studies
claiming misperception mostly between tone 2 and 3. However, we also notice that certain
types of syllables containing different vowels are misperceived differently. The next step is to
figure out if certain syllable nucleuses are more misperceived than others and in certain
positions. These conclusions can in the future lead to new approaches when it comes to
teaching students production and perception of tones.},
	booktitle    = {Proceedings of the Fourth European Conference on Tone and Intonation (TIE4)},
	author       = {Hu, Guohua and Lindh, Jonas},
	year         = {2010},
}