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Wyświetlanie 1-15 z 172
Tytuł:
Application of visual classification algorithms for identification of underwater audio signals
Autorzy:
Gnyś, Piotr
Szczęsna, Gabriela
Domínguez-Brito, Antonio C.
Cabrera-Gámez, Jorge
Powiązania:
https://bibliotekanauki.pl/articles/23956852.pdf
Data publikacji:
2022
Wydawca:
Politechnika Gdańska
Tematy:
audio processing
audio classification
convolutional neural network
Opis:
An audio processing and classification pipeline is presented in this work. The main focus is on the classification of sounds in a marine acoustic environment, however, the presented approach can be applied to other audio data. Audio samples from heterogeneous sources automatically spliced, normalized and transformed into spectrogram based visual representation are tagged on the pipeline input. The said representation is then used to train a convolutional neural network that can identify the presented categories in future recordings.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2022, 26, 4
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optymalna alokacja zasobów dźwiękowych urządzenia mobilnego na potrzeby gier
Optimal allocation of mobile device sound resources for game programming purposes
Autorzy:
Wrzos, A.
Smołka, J.
Powiązania:
https://bibliotekanauki.pl/articles/98436.pdf
Data publikacji:
2016
Wydawca:
Politechnika Lubelska. Instytut Informatyki
Tematy:
Android
audio
java
Opis:
Urządzenia mobilne dysponują ograniczonymi zasobami. Szczególnie gry potrzebują specjalnego podejścia od programisty. Większość wzorców projektowych pozwala osiągnąć statyczne zużycie pamięci i niskie użycie procesora, jednak ciągle jest wiele sytuacji gdzie wytworzenie płynnie działającej funkcjonalności jest wymagającym zadaniem, wymagającym przeprowadzenia badań. W tej pracy autor bada optymalną alokację zasobów dźwiękowych do odtwarzania ich z minimalnym opóźnieniem w języku Java na systemie Android.
Android is a mobile device platform, whose resources are limited. Games, and high-performance applications need special approach. Most of programming patterns allow for static memory allocation or maintaining low processor usage. Regardless, there are still many situations, in which development is demanding task, and needs much research. In this work author studied and research for efficient allocation of audio resources to play them with minimal latency in non deterministic way.
Źródło:
Journal of Computer Sciences Institute; 2016, 2; 104-107
2544-0764
Pojawia się w:
Journal of Computer Sciences Institute
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Emotionstransfer bei der Audiodeskription
Emotion Transfer in Audio Description
Autorzy:
Anishchenko, Alla
Powiązania:
https://bibliotekanauki.pl/articles/2028883.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Wrocławski. Oficyna Wydawnicza ATUT – Wrocławskie Wydawnictwo Oświatowe
Tematy:
audio description
emotions
blind and visually impaired people
audio film
Opis:
In classic communication, emotion is transferred via three channels: verbal, nonverbal and paraverbal. With the audio description, which should enable blind and visually impaired people to perceive visual processes, the visual channel is omitted. Emotions are objectified using the available linguistic and para-linguistic means. On the basis of the corpora of the German-language audio films, relevant forms and forms of emotion transfer in the audio description are analyzed.
Źródło:
Linguistische Treffen in Wrocław; 2020, 18; 23-32
2084-3062
2657-5647
Pojawia się w:
Linguistische Treffen in Wrocław
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Implementation of a Novel Audio Network Protocol
Autorzy:
Lee, J.
Jeon, H.
Choi, P.
Kwon, S.
Lee, S.
Powiązania:
https://bibliotekanauki.pl/articles/178062.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
audio mixer
AoIP
audio over internet protocol
DANTE
SR System
Opis:
Recently, the rapid advancement of the IT industry has resulted in significant changes in audio-system configurations; particularly, the audio over internet protocol (AoIP) network-based audio-transmission technology has received favourable evaluations in this field. Applying the AoIP in a certain section of the multiple-cable zone is advantageous because the installation cost is lower than that for the existing systems, and the original sound is transmitted without any distortion. The existing AoIP-based technology, however, cannot control the audio-signal characteristics of every device and can only transmit multiple audio signals through a network. In this paper, the proposed Audio Network & Control Hierarchy Over peer-to-peer (Anchor) system enables all audio equipment to send and receive signals via a data network, and the receiving device can mix the signals of different IPs. Accordingly, it was possible to improve the system-application flexibility by simplifying the audio-system configuration. The research results confirmed that the received audio signals from different IPs were received, mixed, and output without errors. It is expected that Anchor will become a standard for audio-network protocols.
Źródło:
Archives of Acoustics; 2018, 43, 4; 637-645
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methods of Time-Frequency Analysis in Authentication of Digital Audio Recordings
Autorzy:
Korycki, R.
Powiązania:
https://bibliotekanauki.pl/articles/226798.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
tampering detection
audio authenticity analysis
media authentication
electric network frequency
time-frequency analysis
digital audio forensics
inverse decoder
MP3
compressed audio
perceptual audio coding
Opis:
This paper describes the problem of tampering detection and discusses the main methods used for authenticity analysis of digital audio recordings. For the first topic, two frequency measurement algorithms based on electric network frequency criterion are applied. Time-frequency analysis is used and improved with reassignment method for purpose of visual inspection of modified recordings. The algorithms are shortly described and exemplary plots are presented with interpretation. The last described method, recently proposed, is based on checking frame offsets in compressed audio files.
Źródło:
International Journal of Electronics and Telecommunications; 2010, 56, 3; 257-262
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pursuing Listeners’ Perceptual Response in Audio-Visual Interactions – Headphones vs Loudspeakers: A Case Study
Autorzy:
Mróz, Bartłomiej
Kostek, Bożena
Powiązania:
https://bibliotekanauki.pl/articles/2141690.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
human perception
audio-visual interaction
3D perception
binaural spatial audio
Opis:
This study investigates listeners’ perceptual responses in audio-visual interactions concerning binaural spatial audio. Audio stimuli are coupled with or without visual cues to the listeners. The subjective test participants are tasked to indicate the direction of the incoming sound while listening to the audio stimulus via loudspeakers or headphones with the head-related transfer function (HRTF) plugin. First, the methodology assumptions and the experimental setup are described to the participants. Then, the results are presented and analysed using statistical methods. The results indicate that the headphone trials showed much higher perceptual ambiguity for the listeners than when the sound is delivered via loudspeakers. The influence of the visual modality dominates the audio-visual evaluation when loudspeaker playback is employed. Moreover, when the visual stimulus is present, the headphone playback pattern of behavior is not always in response to the loudspeaker playback.
Źródło:
Archives of Acoustics; 2022, 47, 1; 71-79
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Obecność i rola audiodeskrypcji jako wizerunku audialnego, mediującego w akcie komunikacyjnym: badanie pilotażowe
Autorzy:
Mikołajczyk, Kamila
Puppel, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1047590.pdf
Data publikacji:
2020-11-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
audiodescription
image
audio image
Opis:
Audiodescription is a type of translation in which visual elements are transferred into verbal descriptions. Numerous studies discuss the influence of this additional narration on media accessibility for its target audiences, namely partially sighted and blind people. Nevertheless, the impact of audiodescription on different audiences, such as sighted people, is still underdeveloped. The aim of this article is to investigate the influence of audiodescription which can be considered an example of mediation in the act of communication, on sighted audiences.
Źródło:
Scripta Neophilologica Posnaniensia; 2020, 20; 181-197
1509-4146
Pojawia się w:
Scripta Neophilologica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biografia i autobiografia w literaturze audialnej
Biography and Autobiography in Audio Literature
Autorzy:
Bachura-Wojtasik, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/967716.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
documentary
fiction
audio literature
Opis:
The article discusses the audio form of the biography and autobiography – as seen in the radio- drama and documentary – as a distinct form in audio literature. The article is inspired by the theoretical findings of Philippe Lejeune concerning autobiographical literature and the personal diary genre. Theoretical reflections are complemented by selected examples of artistic audio genres. The examples of radio-dramas and artistic documentaries (features) discussed illustrate the specificity of the radio medium, which, on the one hand, opens up new opportunities for documentaries that are impossible to achieve in printed literature, while, on the other hand, it also imposes restrictions.
Źródło:
Acta Universitatis Lodziensis. Folia Litteraria Polonica; 2015, 28, 2
1505-9057
2353-1908
Pojawia się w:
Acta Universitatis Lodziensis. Folia Litteraria Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A COMPARISON OF THE EFFECT OF TEXTUAL, AUDIO AND TEXTUAL-PICTORIAL AND AUDIO–PICTORIAL ANNOTATIONS ON ENHANCING READING COMPREHENSION AMONG IRANIAN EFL LEARNERS
Autorzy:
Karbalaei, Alireza
Zare, Amaneh
Powiązania:
https://bibliotekanauki.pl/articles/955805.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej w Lublinie. IATEFL Poland Computer Special Interest Group
Tematy:
textual annotation
audio annotation
textual-pictorial annotation
audio-pictorial annotation
reading comprehension
Opis:
This study aimed to investigate the interaction between L2 readers and the reading text equipped with four different annotations or glosses including text-only, audio-only, text-picture and audio-picture annotations. The participants in the study were selected from four intact classes consisting of 100 students studying English at intermediate level in Kish Institute of Science & technology (olom va fonon), in Iran. After they were given a reading comprehension text, the four experimental groups were given the same reading comprehension texts with different annotations. Then, they were asked to take the same reading test as posttest. The results of the study demonstrated that text-only and audio-only were more effective than other kinds of annotation. The results suggested that providing the new words whether in audio or text annotation during reading comprehension can help students to comprehend reading in an effective way. Educational implications suggest that provision of different kinds of glosses is beneficial for L2 students although they need some scaffolding for utilizing glosses in a beneficial way.
Źródło:
Teaching English with Technology; 2019, 19, 3; 40-67
1642-1027
Pojawia się w:
Teaching English with Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance Evaluation of Audio Coding by Amalgam AAC and FLAC Audio codec using MDCT and INTMDCT Algorithm
Autorzy:
Dhas, M. Davidson Kamala
Priyadharsini, R.
Powiązania:
https://bibliotekanauki.pl/articles/226258.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
audio codec
advanced audio coding (AAC)
free lossless audio codec (FLAC)
modified discrete cosine transform (MDCT)
integer modified discrete cosine transform (IntMDCT)
mean opinion square (MOS)
perceptual evaluation audio quality (PEAQ)
Opis:
The MDCT and IntMDCT Algorithm is widely utilized is Audio coding. By lifting scheme or rounding operation IntegerMDCT is evolved from Modified Discrete Cosine Transform. This method acquire the properties of MDCT and contribute excelling invertiblity and good spectral mean. In this paper we discuss about the audio codec like AAC and FLAC using MDCT and Integer MDCT algorithm and to find which algorithm shows better Compression Ratio(CR). The confines of this task is to hybriding lossy and lossless audio codec with diminished bit rate but with finer sound quality. Certainly the quality of the audio is figure out by Subjective and Objective testing which is in terms of MOS (Mean opinion square), ABx and some of the hearing aid testing methodology like PEAQ (Perceptual Evaluation Audio Quality) and ODG (Objective Difference Grade)is followed. Execution measure, that is Compression Ratio(CR) and Sound Pressure Level (SPL) is approximated.
Źródło:
International Journal of Electronics and Telecommunications; 2019, 65, 3; 533-539
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Emotywny odbiór audiodeskrypcji dzieła malarskiego Wassilego Kandinskiego
Emotive reception of the audio description of a painting by Wassily Kandinsky
Autorzy:
Jasielska, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/28762828.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
audio description
paintings
emotion
connotation
Opis:
Psychological models of art reception postulate the presence of two fundamental effects: cognitive understanding and emotional response. Unfortunately, these models are dedicated to sighted viewers. However, even though visually impaired individuals cannot directly perceive artistic creations, audio description enables them to experience the reception of, for example, a painting. In order to answer the question of whether the reception of audio description of a painting triggers similar emotions as the reception of the actual artwork, two independent studies were conducted. The research material was an audio description of Wassily Kandinsky’s abstract watercolour sketch for Composition VII, titled „Untitled”. Subjective experiences were measured using the SUPIN scale. In Study I (N = 138), higher intensity of positive affect was observed compared to negative affect after listening to the audio description. In Study II (N = 67), an increase in positive affect intensity and a decrease in negative affect intensity were observed following the audio description. The results indicate that listening to audio description, which represents an indirect contact with a visual artwork, can improve the well-being of the listeners. The obtained results will be analysed in the context of social construction of emotions and embodied cognition.
Źródło:
Człowiek i Społeczeństwo; 2023, 56; 261-281
0239-3271
Pojawia się w:
Człowiek i Społeczeństwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Z zagadnień przekładu audiowizualnego: tłumaczenie piosenek w pełnometrażowych filmach animowanych na przykładzie polskiego i rosyjskiego dubbingu do Sing
Sing and audio-visual translation issues: songs in animated films
Autorzy:
Abramska, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/482569.pdf
Data publikacji:
2018-03-30
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
audio-visual translation
animation
song
Opis:
The article focuses on the problem of translating songs in animated movies. Using Russian and Polish dubbing as examples, the following issues will be discussed: the place and role of the song, the translation strategy adopted, and the consequences and possible impact on reception of the translation strategy. An excellent example that will allow the problem to be fully discussed is Sing the latest animation from the Illumination Entertainment studio – a 2016 American 3D computer- animated comedy.
Źródło:
Acta Polono-Ruthenica; 2018, 1, XXIII; 95-102
1427-549X
Pojawia się w:
Acta Polono-Ruthenica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Role of Audio-Visual Media in Education
Autorzy:
Mašek, Jan
Powiązania:
https://bibliotekanauki.pl/articles/28762926.pdf
Data publikacji:
2005-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
audio-visual media
audio-visual communication
audio-visual didactic message
presentative-expositional role
constructivist-opened role
design and production of videos
Web-mediated communication
Opis:
The theoretical questions of the design and methodology of utilizing of audiovisual messages, which are drawn up for instruction constantly acquire major importance in the context of development of the multimedia systems. There is a question whether the possibilities of the instruction are described and investigated sufficiently in practice. This paper would like to indicate the well-arranged basic methodological roles of the use of audio-visual messages in instruction.
Źródło:
The New Educational Review; 2005, 6; 151-157
1732-6729
Pojawia się w:
The New Educational Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Expert System for Automatic Classification of Sound Signals
Autorzy:
Tyburek, Krzysztof
Kotlarz, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/307799.pdf
Data publikacji:
2020
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
audio descriptors
bird species
fuzzy classification of audio signals
MPEG-7
spectral features of sound
Opis:
In this paper, we present the results of research focusing on methods for recognition/classification of audio signals. We consider the results of the research project to serve as a basis for the main module of a hybrid expert system currently under development. In our earlier studies, we conducted research on the effectiveness of three classifiers: fuzzy classifier, neural classifier and WEKA system for reference data. In this project, a particular emphasis was placed on fine-tuning the fuzzy classifier model and on identifying neural classifier applications, taking into account new neural networks that we have not studied so far in connection with sounds classification methods.
Źródło:
Journal of Telecommunications and Information Technology; 2020, 2; 86-90
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Subjective and Objective Comparative Study of DAB+ Broadcast System
Autorzy:
Gilski, P.
Stefański, J.
Powiązania:
https://bibliotekanauki.pl/articles/177540.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
audio quality assessment
broadcasting
digital audio broadcasting
quality of experience
quality of service
radio communication
Opis:
Broadcasting services seek to optimize their use of bandwidth in order to maximize user’s quality of experience. They aim to transmit high-quality digital speech and music signals at the lowest bitrate. They intend to offer the best quality under available conditions. Due to bandwidth limitations, audio quality is in conflict with the number of transmitted radio programs. This paper analyzes whether the quality of real-time digital DAB+ broadcasted radio programs surpasses the quality offered by analog FM radio. We also perform a subjective and objective quality assessment comparative study of the HE-AAC v2 audio codec used in DAB+. The subjective studies were carried out using the MOS test methodology, whereas the objective tests were realized using the ViSQOLAudio metric. These studies were followed by a questionnaire concerning the migration from analog to digital radio domain.
Źródło:
Archives of Acoustics; 2017, 42, 1; 3-11
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 172

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