| 1. |
- Ayers, Gayle, et al.
(författare)
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Modelling intonation in dialogue
- 1995
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Ingår i: Proceedings of the XIIIth International Congress of Phonetic Sciences. - 9171708367 ; 2, s. 278-281
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Konferensbidrag (refereegranskat)
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| 2. |
- Andréasson, Maia, 1960, et al.
(författare)
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Swedish CLARIN activities
- 2009
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Ingår i: Proceedings of the Nodalida 2009 workshop on CLARIN activities in the Nordic countries. NEALT Proceedings Series. - 1736-6305. ; 5, s. 1-5
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Konferensbidrag (refereegranskat)
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| 3. |
- Andréasson, Maia, et al.
(författare)
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Swedish CLARIN Activities
- 2009
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Ingår i: Proceedings of the NODALIDA 2009 workshop Nordic Perspectives on the CLARIN Infrastructure of Language Resources. - : Northern European Association for Language Technology (NEALT). ; , s. 1-5
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Konferensbidrag (refereegranskat)abstract
- Although Sweden has yet to allocate funds specifically intended for CLARIN activities, there are some ongoing activities which are directly relevant to CLARIN, and which are explicitly linked to CLARIN. These activities have been funded by the Committee for Research Infrastructures and its subcommittee DISC (Database Infrastructure Committee) of the Swedish Research Council.
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| 4. |
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| 5. |
- Beskow, Jonas, et al.
(författare)
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Project presentation: Spontal : multimodal database of spontaneous dialog
- 2009
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Ingår i: Proceedings of Fonetik 2009. - Stockholm : Stockholm University. - 9789163348921 - 9789163348938 ; , s. 190-193
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- We describe the ongoing Swedish speech database project Spontal: Multimodal database of spontaneous speech in dialog (VR 2006-7482). The project takes as its point of departure the fact that both vocal signals and gesture involving the face and body are important in every-day, face-to-face communicative interaction, and that there is a great need for data with which we more precisely measure these.
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| 6. |
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| 7. |
- Carlson, Rolf, et al.
(författare)
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Perceptual judgments of pitch range
- 2004
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Ingår i: Proc. of Intl Conference on Speech Prosody 2004. - Nara, Japan. ; , s. 689-692
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Konferensbidrag (refereegranskat)abstract
- This paper reports on a study that explores to what extent listeners are able to judge where a particular utterance fragment is located in a speaker's pitch range. The research consists of a perception study that makes use of 100 stimuli, selected from 50 different speakers whose speech was originally collected for a multi-speaker database of Swedish speech materials. The fragments are presented to subjects whom are asked to estimate whether the fragment is located in the lower or higher part of that speaker's range. Results reveal that listeners' judgments are dependent on the gender of the speaker, but that within a gender they tend to hear differences in range.
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| 8. |
- Edlund, Jens, et al.
(författare)
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Spontal : a Swedish spontaneous dialogue corpus of audio, video and motion capture
- 2010
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Ingår i: Proc. of the Seventh conference on International Language Resources and Evaluation (LREC'10). - 2951740867 ; , s. 2992-2995
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Konferensbidrag (refereegranskat)abstract
- We present the Spontal database of spontaneous Swedish dialogues. 120 dialogues of at least 30 minutes each have been captured in high-quality audio, high-resolution video and with a motion capture system. The corpus is currently being processed and annotated, and will be made available for research at the end of the project.
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| 9. |
- Elenius, Kjell, et al.
(författare)
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Language Resources and Tools for Swedish: A Survey
- 2008
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Ingår i: Proceedings of the Sixth International Language Resources and Evaluation (LREC 2008). - Paris : European Language Resources Association (ELRA).
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Konferensbidrag (refereegranskat)abstract
- Language resources and tools to create and process these resources are necessary components in human language technology and natural language applications. In this paper, we describe a survey of existing language resources for Swedish, and the need for Swedish language resources to be used in research and real-world applications in language technology as well as in linguistic research. The survey is based on a questionnaire sent to industry and academia, institutions and organizations, and to experts involved in the development of Swedish language resources in Sweden, the Nordic countries and world-wide.
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| 10. |
- Elenius, Kjell, et al.
(författare)
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Survey on Swedish Language Resources
- 2008
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Language resources, such as lexicons, databases, dictionaries, corpora, and tools to create and process these resources are necessary components in human language technology and natural language applications. In this survey, we describe the inventory process and the results of existing language resources for Swedish, and the need for Swedish language resources to be used in research and real-world applications in language technology as well as in linguistic research. The survey is based on an investigation sent to industry and academia, institutions and organizations, to experts involved in the development of Swedish language resources in Sweden, the Nordic countries and world-wide. This study is a result of the project called “An Infrastructure for Swedish language technology” supported by the Swedish Research Council´s Committee for Research Infrastructures 2007 - 2008.
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| 11. |
- Forsell, Mimmi, et al.
(författare)
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Acoustic correlates of frustration in spontaneous speech
- 2007
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Ingår i: TMH-QPSR. - : Royal School of Technology. - 1104-5787. ; 50:1, s. 37-40, s. 37-40
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The focus of this master’s thesis by the first author was to investigate the acoustic attributes of frustration in spontaneous speech. The speech material was recorded from real life Swedish telephone services by the company Voice Provider. The utterances were selected speaker by speaker in order to have at least one of them judged as emotionally neutral by a listener group, while the other utterances of the same speaker were judged as displaying emotional speech. Due to the nature of the speech material most of it was spoken in a neutral way. However, some percent of the utterances displayed various degrees of frustration, mostly anger but also some despondency, and these were the emotions studied in this report. We also studied the emotional intensity of the utterances. Acoustic cues of the emotional speech were compared to those of neutral speech for the same speaker. We found some significant differences between the acoustic cues for neutral and emotional speech. Anger was characterized by a rise of fundamental frequency and an increase in speech amplitude, whereas despondency reduced the syllable rate significantly. The emotional intensity raised the pitch, increased the amplitude and decreased the syllable rate. Correlations were also found between perceived emotions and acoustic speech parameters.
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| 12. |
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| 13. |
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| 14. |
- Johansen, Finn Tore, et al.
(författare)
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The cost 249 speechdat multilingual reference recogniser
- 2000
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Konferensbidrag (refereegranskat)abstract
- The COST 249 SpeechDat reference recogniser is a fully automatic, language-independent training procedure for building a phonetic recogniser. It relies on the HTK toolkit and a SpeechDat(II) compatible database. The recogniser is designed to serve as a reference system in multilingual recognition research. This paper documents version 0.93 of the reference recogniser and presents results on smallvocabulary recognition for seven languages.
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| 15. |
- Laukka, Petri, et al.
(författare)
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Expression of affect in spontaneous speech : Acoustic correlates and automatic detection of irritation and resignation
- 2011
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Ingår i: Computer speech & language (Print). - : Elsevier. - 0885-2308 .- 1095-8363. ; 25:1, s. 84-104
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Tidskriftsartikel (refereegranskat)abstract
- The majority of previous studies on vocal expression have been conducted on posed expressions. In contrast, we utilized a large corpus of authentic affective speech recorded from real-life voice controlled telephone services. Listeners rated a selection of 200 utterances from this corpus with regard to level of perceived irritation, resignation, neutrality, and emotion intensity. The selected utterances came from 64 different speakers who each provided both neutral and affective stimuli. All utterances were further automatically analyzed regarding a comprehensive set of acoustic measures related to F0, intensity, formants, voice source, and temporal characteristics of speech. Results first showed that several significant acoustic differences were found between utterances classified as neutral and utterances classified as irritated or resigned using a within-persons design. Second, listeners’ ratings on each scale were associated with several acoustic measures. In general the acoustic correlates of irritation, resignation, and emotion intensity were similar to previous findings obtained with posed expressions, though the effect sizes were smaller for the authentic expressions. Third, automatic classification (using LDA classifiers both with and without speaker adaptation) of irritation, resignation, and neutral performed at a level comparable to human performance, though human listeners and machines did not necessarily classify individual utterances similarly. Fourth, clearly perceived exemplars of irritation and resignation were rare in our corpus. These findings were discussed in relation to future research.
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| 16. |
- Laukka, Petri, et al.
(författare)
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Vocal Expression in spontaneous and experimentally induced affective speech : Acoustic correlates of anxiety, irritation and resignation
- 2008
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Ingår i: Proceedings of the LREC 2008 Workshop on Corpora for Research on Emotion and Affect. - Marrakesh, Marocko. - 2951740840 ; , s. 44-47
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Konferensbidrag (refereegranskat)abstract
- We present two studies on authentic vocal affect expressions. In Study 1, the speech of social phobics was recorded in an anxiogenic public speaking task both before and after treatment. In Study 2, the speech material was collected from real life human-computer interactions. All speech samples were acoustically analyzed and subjected to listening tests. Results from Study 1 showed that a decrease in experienced state anxiety after treatment was accompanied by corresponding decreases in a) several acoustic parameters (i.e., mean and maximum F0, proportion of high-frequency components in the energy spectrum, and proportion of silent pauses), and b) listeners’ perceived level of nervousness. Both speakers’ self-ratings of state anxiety and listeners’ ratings of perceived nervousness were further correlated with similar acoustic parameters. Results from Study 2 revealed that mean and maximum F0, mean voice intensity and H1-H2 was higher for speech perceived as irritated than for speech perceived as neutral. Also, speech perceived as resigned had lower mean and maximum F0, and mean voice intensity than neutral speech. Listeners’ ratings of irritation, resignation and emotion intensity were further correlated with several acoustic parameters. The results complement earlier studies on vocal affect expression which have been conducted on posed, rather than authentic, emotional speech.
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| 17. |
- Lindberg, Borge, et al.
(författare)
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a noise robust multilingual reference recogniser based on speechdat(II)
- 2000
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Konferensbidrag (refereegranskat)abstract
- An important aspect of noise robustness of automatic speech recognisers (ASR) is the proper handling of non-speech acoustic events. The present paper describes further improvements of an already existing reference recogniser towards achieving such kind of robustness. The reference recogniser applied is the COST 249 SpeechDat reference recogniser, which is a fully automatic, language-independent training procedure for building a phonetic recogniser (http://www.telenor.no/fou/prosjekter/taletek/refrec). The reference recogniser relies on the HTK toolkit and a Speech- Dat(II) compatible database, and is designed to serve as a reference system in multilingual speech recognition research. The paper describes version 0.96 of the reference recogniser which take into account labelled non-speech acoustic events during training and provides robustness against these during testing. Results are presented on small and medium vocabulary recognition for six languages.
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| 18. |
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| 19. |
- Neiberg, Daniel, et al.
(författare)
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Automatic Recognition of Anger in Spontaneous Speech
- 2008
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Ingår i: INTERSPEECH 2008. - BAIXAS : ISCA-INST SPEECH COMMUNICATION ASSOC. - 9781615673780 ; , s. 2755-2758
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Konferensbidrag (refereegranskat)abstract
- Automatic detection of real life negative emotions in speech has been evaluated using Linear Discriminant Analysis, LDA, with "classic" emotion features and a classifier based on Gaussian Mixture Models, GMMs. The latter uses Mel-Frequency Cepstral Coefficients, MFCCs, from a filter bank covering the 300-3400 Hz region to capture spectral shape and formants, and another in the 20-600 Hz region to capture prosody. Both classifiers have been tested on an extensive corpus from Swedish voice controlled telephone services. The results indicate that it is possible to detect anger with reasonable accuracy (average recall 83%) in natural speech and that the GMM method performed better than the LDA one.
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| 20. |
- Neiberg, Daniel, et al.
(författare)
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Emotion Recognition
- 2009
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Ingår i: Computers in the Human Interaction Loop. - Berlin/Heidelberg : Springer. - 9781848820531 ; , s. 96-105
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Bokkapitel (refereegranskat)
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| 21. |
- Neiberg, Daniel, et al.
(författare)
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Emotion Recognition in Spontaneous Speech Using GMMs
- 2006
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Ingår i: INTERSPEECH 2006 AND 9TH INTERNATIONAL CONFERENCE ON SPOKEN LANGUAGE PROCESSING. - BAIXAS : ISCA-INST SPEECH COMMUNICATION ASSOC. ; , s. 809-812, s. 101-104
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Konferensbidrag (refereegranskat)abstract
- Automatic detection of emotions has been evaluated using standard Mel-frequency Cepstral Coefficients, MFCCs, and a variant, MFCC-low, calculated between 20 and 300 Hz, in order to model pitch. Also plain pitch features have been used. These acoustic features have all been modeled by Gaussian mixture models, GMMs, on the frame level. The method has been tested on two different corpora and languages; Swedish voice controlled telephone services and English meetings. The results indicate that using GMMs on the frame level is a feasible technique for emotion classification. The two MFCC methods have similar performance, and MFCC-low outperforms the pitch features. Combining the three classifiers significantly improves performance.
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| 22. |
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