1,721,004 research outputs found
The Viking HRTF dataset v2
Full text linkThe Viking HRTF dataset v2 is a collection of head-related transfer functions (HRTFs) measured at the University of Iceland. It includes full-sphere HRTFs measured on a dense spatial grid (1513 positions) with a KEMAR mannequin with different pairs of artificial pinnae attached. The artificial pinnae were previously obtained through a custom molding procedure from different lifelike human heads (courtesy of Ernst Backman, Saga Museum Reykjavík).
An overview of the methods and procedures of the HRTF measurement sessions can be found in the papers
Simone Spagnol, Kristján Bjarki Purkhús, Sverrir Karl Björnsson, and Rúnar Unnthórsson (2019). The Viking HRTF dataset. In: Proceedings of the 16th Sound & Music Computing Conference (SMC 2019), pages 55-60, Málaga, Spain.
Marius George Onofrei, Riccardo Miccini, Rúnar Unnthórsson, Stefania Serafin, and Simone Spagnol (2020). 3D ear shape as an estimator of HRTF notch frequency. In: Proceedings of the 17th Sound & Music Computing Conference (SMC 2020), pages 131-137, Torino, Italy.
A first version of the dataset has been released in May 2019. In this second version, the used artificial pinnae were re-casted from the existing inverse molds with 35 Shore OO silicone for both the left and right channels of the KEMAR. Furthermore, the HRTF measurements have been taken inside the anechoic chamber of the University of Iceland in Reykjavík and free-field compensated.
The dataset, available in SOFA format, contains measurements for 20 different pairs of articial pinna replicas (subjects A to T, where T is a pair of standard large KEMAR anthropometric pinnae replicas) plus a pair of flat baffles simulating a "pinna-less" condition (subject Z).
3D scans of the 20 left pinna replicas are available as STL files. The scans were captured at 1mm resolution with a Creaform Go!SCAN 20 (courtesy of AAU Create Prototyping Lab).
The data is provided under the CC-BY 4.0 license that grants unlimited access for everyone. If you use this data please reference
Simone Spagnol, Kristján Bjarki Purkhús, Sverrir Karl Björnsson, and Rúnar Unnthórsson (2019). The Viking HRTF dataset. In: Proceedings of the 16th Sound & Music Computing Conference (SMC 2019), pages 55-60, Málaga, Spain.
Simone Spagnol, Riccardo Miccini and Rúnar Unnthórsson (2020). The Viking HRTF dataset v2. DOI: 10.5281/zenodo.416040
Some difficulties inherent in the project of an artificial musical experience
No full textIn the first part the article sets and discusses from a pragmatic and psychological point of view the founda- tions of human musical experience. In the second part it considers the difficulties of the construction of an artifi- cial musical experience at the various levels (perception, cognition, emotion, memory and anticipation, subjec- tivity, and consciousness)
Confronto tra sistemi di rilevamento del gesto basati su sensori a infrarossi o ultrasuoni per applicazioni di pianoforte virtuale
Full text linkPresentiamo una tastiera virtuale che mira a sostituire quella del pianoforte con dei tasti in realtà aumentata. Lo sforzo maggiore è stato compiuto nel rilevamento accurato nonché rapido dei movimenti delle mani. Per raggiungere questo obiettivo sono stati confrontati un dispositivo di rilevamento a infrarossi ed uno a ultrasuoni, valutandone pro e contro nell’impiego specifico. Abbiamo poi realizzato un sistema di feedback multimodale riprendendo le azioni delle mani dell’esecutore mediante la fotocamera posteriore di un comune dispositivo mobile, e presentandole all’utente unite alla visualizzazione di una tastiera di pianoforte animata. Connettendo il dispositivo Leap Motion, responsabile del rilevamento a infrarossi, e altri dispositivi hardware per la generazione di stimoli audio e vibrotattili, il prototipo promette potenziali applicazioni come interfaccia musicale mobile a basso costo, trasformando un comune tavolo in uno scenario di realtà aumentata dove possono essere eseguiti semplici esercizi con buona accuratezza e una risposta realistica in assenza di una tastiera reale
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Bringing Back To Life Ancient Music Scores: The Case Of Music In The 1799 Neapolitan Revolution
No full textThis paper describes an ongoing project, which, based
on ancient archive material and scores, abounding in the
music library of the Conservatorio di Musica di Napoli1,
San Pietro a Majella, tries to bring to new life
some interesting handwritten and printed musical material.
The project aims at enhancing fruition of ancient
scores, multiplying modalities and means to enjoy ancient
music but, at the same time, it promotes some interesting
musicological and even historical research. All
these goals are performed by means of the use of multimedia
tools, including web technology, mobiles, tablets,
smart tags and similar. The project may offer tools and
materials to be used in different directions, ranging from
smart guides for music museums, to musical education
and more general interactive music listening
Is an Auditory Event more Takete?
Full text linkRecent experiments have demonstrated that the words Takete and Maluma, as well as Kiki and Bouba, once heard stimulate a cross-modal response in humans that goes beyond visual associations, and in particular affects the trajectory of human motion patterns. Inspired by such experiments, in a binary (Takete/Maluma) response test we presented to sixteen individuals a random sequence of either sonic or silent videos reproducing a smooth and a notched ball rolling down along a rounded or zig-zagged path. Bayesian estimation revealed a credible effect of the zig-zagged path in participants choosing Takete, and an equally strong effect of the notched ball. On the other hand, the silent videos had a negative effect on subjects’ probability of choosing Takete. This means that in absence of auditory feedback, subjects tend to choose Maluma compared to similar situations with sound. Though exploratory, such a result suggests that the auditory modality may have significantly biased the decision toward Takete when our participants were exposed to the audio-visual event. If supported by more extensive tests, this experiment would emphasize the importance of sound in the cognition of audio-visual events eliciting sense of sharpness in humans
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
- …
