In this paper, the acoustic-phonetic characteristics of steady apical trills--trill sounds produced by the periodic vibration of the apex of the tongue--are studied. Signal processing methods, namely, zero-frequency filtering and zero-time liftering of speech signals, are used to analyze the excitation source and the resonance characteristics of the vocal tract system, respectively. Although it...

Both sensory and motor mechanisms can constrain behavioral performance. Sensory mechanisms may be especially important for constraining behaviors that depend on experience, such as learned birdsongs. Swamp sparrows learn to sing by imitating the song of a tutor, but sparrows fail to accurately imitate artificial tutor songs with abnormally accelerated trills, instead singing brief and rapid tri...

Over the last two decades, data scientists performed increasingly sophisticated analyses on larger data sets, yet their tools and workflows remain low-level. A typical analysis involves different tools for different stages of the work, requiring file transfers and considerable care to keep everything organized. Temporal data adds additional complexity: users typically must write queries offline...

This memo defines a portion of the Management Information Base (MIB) for use with network management protocols. In particular, it defines objects for managing a Routing Bridge (RBridge), also known as a TRILL Switch, based on the IETF TRILL (Transparent Interconnection of Lots of Links) protocol. Information about the current status of this document, any errata, and how to provide feedback on i...

Major theories of sexual selection predict heritable variation in female preferences and male traits and a positive genetic correlation between preference and trait. Here we show that female Texas field crickets, Gryllus integer, have heritable genetic variation for the male calling song stimulus level that produces the greatest phonotactic response. Approximately 34% of the variation in female...

of Vehrencamp et al. (2013) is totally unwarranted. We merely stated the general theoretical proposition being tested in our study, a standard protocol for scientific articles. The statement was fully justified given the large literature on performance constraints affecting sound production and the association of acoustic signal features with aspects of sender characteristics. Kroodsma does not...

This research deals with one of the techniques playing Oud instrument, which is Trill technique, has become a necessity to perform on instrument in current era, especially since most studies that searched did not discuss method performing this but only mentioned it. aims know what trill and clarify its types, style, methods Oud. Researchers have authored number exercises teach performance Oud, ...

Many studies in L3 phonetics and phonology have found that language dominance plays an influential role determining the source of transfer. However, any effect is likely dependent on many factors, including task complexity. As complexity increases, learners should be increasingly to rely more automatic articulatory routines from their dominant language. We tested this hypothesis by examining pr...

Urban environments challenge animals with 2 novel impediments to communication: low-frequency anthropogenic noise, which masks vocalizations, and large sound-reflecting structures, which contribute to reverberation. We studied spectral and temporal traits of trill songs of chipping sparrows (Spizella passerina), a species historically found in open grassland habitat, to understand how noise, ur...

Mating signals of many animal species are difficult to produce and thus should indicate signaler quality. Growing evidence suggests that receivers modulate their behaviour in response to signals with varying performance levels, although little is known about if and how responses are affected by receiver attributes. To explore this topic we conducted two experiments with swamp sparrows, Melospiz...