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Lenore : Oper in drei Aufzügen (Aria di Conrad, Recitativ und Arie N° 6)
No full text[Musik von Anselm Hüttenbrenner. Gedichtet v. Carl R. v. Leitner und F. Kollmann. - Herausgegeben von Tiziano Duca. - Partitur. - Graz : Universität für Musik und darstellende Kunst Graz, 2022
Mate choice in a promiscuous poison frog
No full textIn many animal species, members of one sex, most often females, exhibit a strong preference for mating partners with particular traits or resources. However, when females sequentially mate with multiple partners, strategies underlying female choice are not very well understood. Particularly, little is known if under such sequential polyandry females mate truly randomly, or if they actively try to spread mating events across multiple partners. In the present study, we used the highly promiscuous poison frog Allobates femoralis to investigate whether promiscuity could result from a preference for novel mates. Furthermore, we examined the importance of call characteristics for mate choice. We conducted mate choice experiments in a laboratory setup, by presenting females with recent mating partners or novel males. We recorded call characteristics of both males and the time females spent close to each male. In our trials, females preferred previous mating partners over novel males and also males with shorter advertisement calls. Results from previous studies on A. femoralis suggest that females in our trials recognized previous partners based on individual call characteristics. While mating decisions in the wild and in the laboratory might differ, our study provides first evidence for female mate choice in a poison frog with sequential polyandry
Exploring links between personality traits and their social and non-social environments in wild poison frogs
No full textAn animal’s behavioral phenotype comprises several traits, which are hierarchically structured in functional units. This is manifested in measured behaviors often being correlated, partly reflecting the need of a coordinated functional response. Unfortunately, we still have limited understanding whether consistent differences in animal behaviors are due to underlying physiological constraints or a result of plastic adaptation to their current environment. Therefore, characterizing the spatial distribution of behaviors can provide important insights into causes and consequences of behavioral variation. In the present study, we quantified behaviors in a wild, free-ranging population of the Neotropical frog Allobates femoralis. We investigated how these behaviors were linked to the frogs’ natural and social environment and quantified the extent to which these behaviors consistently differed among individuals (i.e., animal personality). We assessed levels of aggressiveness, exploration, and boldness by measuring several underlying behaviors expressed in a set of experimental assays, and found evidence for consistent among-individual differences along these axes. Contrary to our expectation, there was no relationship between individual behaviors and their natural environment, but we found a plastic response of males to changes in female density, which might reflect how individuals cope with their socio-ecological environment
LEV sweet area plots for rectangular source arrangements
No full textSupplementary plots of sweet area regarding perceived envelopment in loudspeaker systems
Textual Encounters of Hope and Be/Longing: Science Fiction and Trans Worldmaking
No full textIn this article, Si Sophie Pages Whybrew analyzes the worldmaking potential of North American science fiction stories for trans readers, reflecting on the relationship of a specific genre to a specific audience and its implications for representation and recognition
Laubhold_Video_Beispiel_1 : Ludwig van Beethoven, Achte Sinfonie, I., Takte 1–12, Bildschirmvideo der Sonic Visualiser-Messung der Einspielung von Otto Klemperer mit dem Berliner Staatsopernorchester von 1924.
No full textAdil Johan, and Mayco A. Santaella, eds. Made in Nusantara: Studies in Popular Music. New York: Routledge, 2021. 265pp., list of figures, bibliography, index. ISBN 9780367428464 (paperback), ISBN 9780367428471 (hardback), and ISBN 9780367855529 (ebook).
No full textBook review: Adil Johan, and Mayco A. Santaella, eds. Made in Nusantara: Studies in Popular Music. New York: Routledge, 2021. 265p
Spatially Oriented Format for Acoustics 2.1: Introduction and Recent Advances
No full textSpatially oriented acoustic data can range from a simple set of impulse responses, such as head-related transfer functions, to a large set of multiple-input multiple-output spatial room impulse responses obtained in complex measurements with a microphone array excited by a loudspeaker array at various conditions. The spatially oriented format for acoustics (SOFA), which was standardized by AES Standard 69, provides a format to store and share such data. SOFA takes into account geometric representations of many acoustic scenarios, data compression, network transfer, and a link to complex room geometries and aims at simplifying the development of interfaces for many programming languages. With the recent advancement of SOFA, the format offers a new continuous-direction representation of data by means of spherical harmonics and novel conventions representing many measurement scenarios, such as source directivity and multiple-input multiple-output spatial room impulse responses. This article reviews SOFA by first providing an introduction to SOFA and then describing examples that demonstrate the most recent features of SOFA 2.1 (AES Standard 69-2022)
Four-Directional Ambisonic Spatial Decomposition Method With Reduced Temporal Artifacts
No full textFor the creation of convincing virtual acoustics of existing rooms and spaces, it is useful to apply measured Ambisonic room impulse responses (ARIRs) as a convolution reverb. Typically, tetrahedral arrays offering only first-order resolution are the preferred practical choice for measurements, because they are easily available and processed. In contrast, higher order is preferred in playback because it is superior in terms of localization accuracy and spatial clarity. There are a number of algorithms that enhance the spatial resolution of firstorder ARIRs. However, these algorithms may introduce coloration and artifacts. This paper presents an improvement of the Ambisonic Spatial Decomposition Method by using four directions simultaneously. The additional signals increase the echo density and thereby better preserve the diffuse sound field components during the process of enhancing measured firstorder ARIRs to higher orders. An instrumental validation and a series of listening experiments compare the proposed Four-Directional Ambisonic Spatial Decomposition Method to other existing algorithms and prove its similarity to the best algorithm in terms of enhanced spatial clarity and coloration while producing the least artifacts