Thematische Bibliographien / Audio circuits

Auswahl der wissenschaftlichen Literatur zum Thema „Audio circuits“

Autor: Grafiati
Veröffentlicht am 25. Mai 2024

Geben Sie eine Quelle nach APA, MLA, Chicago, Harvard und anderen Zitierweisen an

Wählen Sie eine Art der Quelle aus:

Inhaltsverzeichnis

Machen Sie sich mit den Listen der aktuellen Artikel, Bücher, Dissertationen, Berichten und anderer wissenschaftlichen Quellen zum Thema "Audio circuits" bekannt.

Neben jedem Werk im Literaturverzeichnis ist die Option "Zur Bibliographie hinzufügen" verfügbar. Nutzen Sie sie, wird Ihre bibliographische Angabe des gewählten Werkes nach der nötigen Zitierweise (APA, MLA, Harvard, Chicago, Vancouver usw.) automatisch gestaltet.

Sie können auch den vollen Text der wissenschaftlichen Publikation im PDF-Format herunterladen und eine Online-Annotation der Arbeit lesen, wenn die relevanten Parameter in den Metadaten verfügbar sind.

Zeitschriftenartikel zum Thema "Audio circuits"

1

Aladdin Bayramov, Lala Bekirova, Aladdin Bayramov, Lala Bekirova. „MATHEMATICAL MODELING OF THE OPERATION OF AUDIO FREQUENCY (NO JUNCTION) AND JUNCTION RAIL CIRCUITS“. PIRETC-Proceeding of The International Research Education & Training Centre 24, Nr. 03 (15.05.2023): 49–55. http://dx.doi.org/10.36962/piretc24032023-49.

Der volle Inhalt der Quelle
Annotation:
Rail circuits are the basic elements of modern railway automation and telemechanics systems, performing the functions of track sensors and telemechanical channels. It is shown that the calculation of their operating boundary conditions becomes more complicated with the application of junctionless audio frequency rail circuits. The analysis of track circuits consists of studying the changes in their operation in various modes when the circuit parameters are changed. During the analysis, the optimal values of the parameters of the circuit elements and the frequency of the power source are determined for the given operating conditions. An analysis of the factors affecting the operating currents and voltages of such rail circuit schemes has been carried out. When analyzing and calculating a track circuit, it is assumed that the track line and equipment elements are linear, that is, their parameters do not depend on the flowing currents. To simplify the calculations, the track circuit is represented by the corresponding mathematical model (equivalent circuit) for each mode. Depending on the type of equivalent circuit used, four-pole and multi-pole models are distinguished. At the same time, the analysis and reporting of jointed rail circuits are carried out. Based on their results, the directions that allow for more accurate modeling of the operating modes of the circuits of the non-joint audio frequency rail circuits have been determined. Keywords: Rail circuits, train traffic safety, audio frequency (no junction) track circuits, junction rail circuits, signaling system, track sensors, mathematical model, remote conditioning monitoring.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

G.W.A.D. „Audio IC circuits manual“. Microelectronics Reliability 29, Nr. 4 (Januar 1989): 644. http://dx.doi.org/10.1016/0026-2714(89)90356-9.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Falkowski, Piotr, und Andrzej Malcher. „Dynamically Programmable Analog Arrays in Acoustic Frequency Range Signal Processing“. Metrology and Measurement Systems 18, Nr. 1 (01.01.2011): 77–90. http://dx.doi.org/10.2478/v10178-011-0008-1.

Der volle Inhalt der Quelle
Annotation:
Dynamically Programmable Analog Arrays in Acoustic Frequency Range Signal ProcessingField programmable analog arrays (FPAA), thanks to their flexibility and reconfigurability, give the designers quite new possibilities in analog circuit design. The number of both academic projects on FPAA and applications of commercially available programmable devices is still growing. This paper explores the properties and parameters of two most popular FPAA circuits: the AnadigmVortex AN221E04 and AnadigmApex AN231E04 from the Anadigm company. The research conducted by the authors led to the discovery of some undocumented features of these devices. Several applications for audio processing were built and tested. The results show that these circuits can be used in medium-demanding audio applications. Thanks to dynamic reconfigurability, they also allow to build an universal analog audio signal processor. These circuits can also act as a versatile platform for rapid prototyping and educational purposes.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Saiapina, Inna, Mykhailo Babaiev und Olha Аnanіevа. „Reducing noise influence on an audio frequency track circuit“. MATEC Web of Conferences 294 (2019): 03015. http://dx.doi.org/10.1051/matecconf/201929403015.

Der volle Inhalt der Quelle
Annotation:
In connection with electromagnetic interference influence on the track circuits, the purpose of the research is finding the means to increase the noise immunity of an audio frequency track circuit. The authors propose a new engineering solution, which enables reducing the effect of noises on the input of the track receiver in the intervals between signal current pulses. The proposed noise-immune audio frequency track circuit is based on inserting a delay line, an adjustable single-pulse generator and a controlled electronic switch into the existing audio frequency track circuit equipment. To analyze its efficiency, the operation of the audio frequency track circuit was simulated under conditions of traction current disturbances, impulse and fluctuation interferences with the known parameters. The results show that proposed device for railway transport allows to increase a signal-to-noise ratio on the track receiver input from 8% to 30%, depending on the interference parameters and the level of the useful signal.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Saiapina, I., O. Gorobсhenko, V. Demchenko und Y. Stompel. „SIMULATION AND INTELLECTUAL ANALYSIS OF AUDIO FREQUENCY TRACK CIRCUIT PARAMETERS“. Collection of scientific works of the State University of Infrastructure and Technologies series "Transport Systems and Technologies", Nr. 39 (30.06.2022): 167–74. http://dx.doi.org/10.32703/2617-9040-2022-39-16.

Der volle Inhalt der Quelle
Annotation:
To improve the method of increasing the noise immunity of a audio frequency track circuit, based on cutting out interference in the intervals between useful signal pulses, an analysis was made of fluctuations in the signal transit time in the transmission path of a audio frequency track circuit depending on its operation parameters: signal current frequency, rail line length, insulation resistance and ambient temperature. For this, a simulation model of the operation of a audio frequency track circle has been developed. Based on the simulation results, a relational database was created with the values of measurement characteristics. With the use of intellectual analysis methods it was determined that the main factor affecting the signal transit time in the transmission path of the audio frequency track circuit is the frequency of the signal current. The main dependences of the operation parameters of the audio frequency track circuit and the signal transit time are determined. The obtained results help to increase the noise immunity of the operation of audio frequency track circuits due to a more precise adjustment of the interference cut-off interval between the useful signal pulses.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Blessed Olalekan, Oyebola. „Sallen-Key Topology, MFB and Butterworthy in Bandpass Design for Audio Circuit Design“. Asian Journal of Electrical Sciences 6, Nr. 1 (05.05.2017): 23–28. http://dx.doi.org/10.51983/ajes-2017.6.1.1992.

Der volle Inhalt der Quelle
Annotation:
This paper succinctly studied active filter topologies: Sallen-key circuit, MFB and Butterworth in band pass design for audio circuits. It has been able to identify distinctive suitable features with applications in audio frequencies range. The work also serves as a foundational study for an advanced work on active audio filters. Sallen-Key pluses with quality factor (Q) that can be varied via the inner gain (G) without modifying the mid frequency (fm). Notably, the Q and Am cannot be adjusted independently. Butterworth, maximally flat magnitude response in the pass band, has monotonic amplitude response with an excellent flat pass band, less phase shift, and better transient results.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Knight-Percival, Alexander, Christopher Johnson, Benjamin Richards, Scott Palmer und Nicholas Bowring. „Mapping of the electromagnetic environment on the railway: Condition monitoring of signalling assets“. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 234, Nr. 3 (09.10.2018): 246–56. http://dx.doi.org/10.1177/0954409718802998.

Der volle Inhalt der Quelle
Annotation:
Conventional track circuit condition monitoring systems are fixed at the wayside, with each installation reporting on a single track circuit. In this work, we present a custom-built, sensitive, magnetic field detection system, which can be fitted to the underside of a rail vehicle. With this system installed, some characteristics of an operating track circuit can be monitored from the vehicle whilst it is in motion. By using appropriate analysis techniques, it is possible to identify the signatures of equipment relating to audio frequency track circuits, the topic of this work. Analysing the signatures of track circuit equipment demonstrated that there were clear differences between track circuit assets. By building on other research into the behaviours of failing track circuits, and continuing to conduct this research, the authors believe that it is possible, and beneficial, to perform condition monitoring of track circuits from low-cost equipment mounted on the train. Coupling this with advanced analysis techniques will allow predictive maintenance of track circuits with very little capital outlay.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Hashemifar, Seyed Mohammad. „Design of a Single-Core Digital-to-Analog Converter with Ultra-Wideband and Low Power Consumption for CUWB-IR Applications“. Tehnički glasnik 16, Nr. 3 (23.06.2022): 311–14. http://dx.doi.org/10.31803/tg-20220405104325.

Der volle Inhalt der Quelle
Annotation:
Data converters are intermediate circuits used to connect between two analog and digital ranges. Data converters are not only used for converting audio into a microphone or speaker, but also for converting audio into a camera or display, transferring information to a computer or digital signal processor. At these times, the need for data converters is not invested in every aspect of life. Digital to analog converters is a leading part of these converters, which are widely used in most audio and video circuits. In this thesis, we have proposed a 4-bit 1GS/s DAC for CUWB-IR usage. To enhance the above performance with superior speed and the need for linearity, every significant block containing the convenient sources, current switches, and deglitcher were designed optimally and a new DAC converter circuit was developed which improves the linearity. The designed DAC was performed using a commercial 130 nm CMOS process. DAC INL/DNL≤0.22LSB features more than high Nyquist bandwidth at extremely low power losses of 0.45 mW. The proposed DAC achieves the best FoMs at the right time for advanced DACs
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Ogunseye, Abiodun, und Olamide Omolara Olusanya. „Design and Simulation of a Microcontroller Based Loudspeaker Protection System Against Amplifier Direct Current (D.C) Offsets“. Journal of Communications Technology, Electronics and Computer Science 8 (03.11.2016): 12. http://dx.doi.org/10.22385/jctecs.v8i0.122.

Der volle Inhalt der Quelle
Annotation:
A number of failure mechanisms can result in the damage of loudspeakers that are directly connected to an audio power amplifier system. One of such failure modes occurs when the amplifier circuit develops an output d.c voltage, in which case, the loudspeaker coil will be damaged by overheating. D.c offset detection circuits, usually based on simple transistor circuits are normally used to protect the loudspeaker against this failure mode. However, as effective as they are, these circuits can fail in ways that can result in loudspeaker damage. In this work, a microcontroller based circuit that monitors the critical components of a loudspeaker d.c detection circuit, namely the switching transistor and the isolating relay circuit was developed. The hardware of the developed circuit was modelled with Proteus® software and its firmware was written using MikroC® software. The modelled circuit successfully detects the presence of d.c signals and also reports the states of the isolating relay and the switching transistors when these components fail.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Journal, IJSREM. „Underwater Audio and Data Transmission System using Li-Fi Technology“. INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, Nr. 03 (11.03.2024): 1–11. http://dx.doi.org/10.55041/ijsrem29208.

Der volle Inhalt der Quelle
Annotation:
Underwater communication system utilizing Li-Fi (Light Fidelity) technology for transmitting audio and data. The system addresses limitations of traditional methods by leveraging an Arduino Uno microcontroller for control, lasers for data transmission, and solar panels for reception. To enhance received audio signals, an amplifier circuit is employed before feeding them into a speaker for playback. Data is recovered and processed on the receiving end using the Arduino Uno. This research explores the feasibility of Li-Fi for underwater applications. The paper details the design and development of the communication system, including hardware components like lasers, solar panels, amplifier circuits, and speakers, along with the software implemented on the Arduino Uno. The results focus on the successful transmission and reception of both audio (heard through the speaker) and text data processed by the Arduino Uno. This work paves the way for further development of Li-Fi based underwater communication solutions for various applications. Keywords- Underwater Communication, Li-Fi (Light Fidelity), Arduino Uno, Laser Diode, Solar Panel, Audio Transmission, Data Transmission, Amplifier Circuit, Speaker
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Mehr Quellen

Dissertationen zum Thema "Audio circuits"

1

Eichas, Felix [Verfasser]. „System Identification of Nonlinear Audio Circuits / Felix Eichas“. Hamburg : Helmut-Schmidt-Universität, Bibliothek, 2020. http://d-nb.info/1212811860/34.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Johnson, James Robert. „Interface design for an audio based information retrieval system“. Master's thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-05042010-020011/.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Najnudel, Judy. „Power-Balanced Modeling of Nonlinear Electronic Components and Circuits for Audio Effects“. Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS223.

Der volle Inhalt der Quelle
Annotation:
Cette thèse porte sur la modélisation de composants électroniques non linéaires pour la simulation de circuits analogiques audio. Notre but est de proposer des modèles à la fois assez sophistiqués pour que les simulations sonnent de façon réaliste, et assez simples pour permettre le temps réel. À cette fin, nous explorons deux approches, toutes deux fondées sur le formalisme des Systèmes Hamiltoniens à Ports (SHP). En effet, ce formalisme préserve la passivité et le bilan de puissance du système, ce qui, couplé à des méthodes numériques ad hoc, garantit la stabilité des simulations. La première approche est orientée "boîte blanche" : on suppose la topologie du circuit connue et on se concentre sur la modélisation de composants spécifiques, à savoir les bobines ferromagnétiques (présentes dans les pédales wah-wah et les amplis guitare) et les opto-isolateurs (présents dans les trémolos et les compresseurs optiques). Les modèles proposés sont issus de la physique, passifs, modulaires, et utilisables en temps réel. La deuxième approche est orientée "boîte grise" : on cherche à retrouver la topologie et les lois constitutives d'un circuit à partir de mesures. L'apprentissage est informé par une structure SHP sous-jacente, et les non-linéarités sont traitées au moyen de noyaux reproduisants. Ainsi, on impose certaines propriétés physiques indispensables, tout en autorisant une large gamme de comportements non linéaires. Le modèle obtenu est interprétable et nécessite moins de paramètres comparé à un modèle issu de réseaux profonds. Enfin, une généralisation de cette approche pour une plus grand classe de circuits est esquissée à travers l'introduction de l'opérateur de Koopman
This thesis is concerned with the modeling of nonlinear components and circuits for simulations in audio applications. Our goal is to propose models that are sufficiently sophisticated for simulations to sound realistic, but that remain simple enough for real time to be attainable. To this end, we explore two approaches, both based on a port-Hamiltonian systems formulation. Indeed, this formulation structurally guarantees power balance and passivity. Combined with ad hoc numerical methods, this ensures the numerical stability of simulations. The first approach is comparable to "white box" modeling. It assumes that the circuit topology is known, and focuses on the modeling of specific components found in vintage audio circuits, namely ferromagnetic coils (found in wah-wah pedals and guitar amplifiers) and opto-isolators (found in tremolos and optical compressors). The proposed models are physically-based, passive, modular, and usable in real time. The second approach is comparable to "grey box" modeling. It aims to retrieve the topology and constitutive laws of a circuit from measurements. The learning of the circuit topology is informed by an underlying port-Hamiltonian formulation, and nonlinearities are concomitantly addressed through kernel-based methods. Thus, necessary physical properties are enforced, while the use of reproducing kernels allows for a variety of nonlinear behaviors to be described with a smaller number of parameters and a higher interpretability compared to neural network methods. Finally, a possible generalization of this approach for a larger class of circuits is outlined through the introduction of the Koopman operator
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Yengui, Firas. „Contribution aux méthodologies et outils d’aide à la conception de circuits analogiques“. Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0098/document.

Der volle Inhalt der Quelle
Annotation:
A la différence de la conception numérique, la conception analogique souffre d’un réel retard au niveau de la solution logicielle qui permet une conception à la fois rapide et fiable. Le dimensionnement de circuits analogiques exige en effet un nombre assez élevé de simulations et de vérifications et dépend beaucoup de l’expertise du concepteur. Pour pallier à ce retard, des outils de conception automatique basés sur des algorithmes d’optimisation locale et globale sont développés. Ces outils restent encore immatures car ils n’offrent que des réponses partielles aux questions du dimensionnement, alors que l’obtention d’un dimensionnement optimal d’un circuit analogique en un temps raisonnable reste toujours un enjeu majeur. La réduction du temps de conception de circuits analogiques intégrés nécessite la mise en place de méthodologies permettant une conception systématique et automatisable sur certaines étapes. Dans le cadre de cette thèse, nous avons travaillé suivant trois approches. Il s’agit d’abord de l’approche méthodologique. A ce niveau nous préconisons une approche hiérarchique descendante « top-down ». Cette dernière consiste à partitionner le système à dimensionner en sous blocs de fonctions élémentaires dont les spécifications sont directement héritées des spécifications du niveau système. Ensuite, nous avons cherché à réduire le temps de conception à travers l’exploration de solutions optimales à l’aide des algorithmes hybrides. Nous avons cherché à profiter de la rapidité de la recherche globale et de la précision de la recherche locale. L’intérêt des algorithmes de recherche hybride réside dans le fait qu’ils permettent d’effectuer une exploration efficace de l’espace de conception du circuit sans avoir besoin d’une connaissance préalable d’un dimensionnement initial. Ce qui peut être très intéressant pour un concepteur débutant. Enfin, nous avons travaillé sur l’accélération du temps des simulations en proposant l’utilisation des méta-modèles. Ceux-ci présentent un temps de simulation beaucoup plus réduit que celui des simulations des modèles électriques. Les méta-modèles sont obtenus automatiquement depuis une extraction des résultats des simulations électriques
Contrary to digital design, analog design suffers from a real delay in the software solution that enables fast and reliable design. In this PhD, three approaches are proposed. The first is the methodological approach. At this level we recommend a "top-down" hierarchical approach. It consists of partitioning the system to size into sub-blocks of elementary functions whose specifications are directly inherited from the system level specification. Next, we aimed to reduce design time through the exploration of optimal solutions using hybrid algorithms. We attempted to take advantage of the rapid global search and local search accuracy. The interest of hybrid search algorithms is that they allow to conduct effective exploration of the design space of the circuit without the need for prior knowledge of an initial design. This can be very useful for a beginner designer. Finally, we worked on the acceleration of time simulations proposing the use of meta-models which present a more reduced time than electrical simulation models. Meta-models are obtained automatically from extracting results of electrical simulations
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Müller, Rémy. „Time-continuous power-balanced simulation of nonlinear audio circuits : realtime processing framework and aliasing rejection“. Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS453.

Der volle Inhalt der Quelle
Annotation:
Cette thèse s'intéresse à la simulation temps-réel de circuit audio nonlinéaires. Dans cette thèse, nous utilisons le formalisme des systèmes Hamiltoniens à ports (SHP) pour garantir le bilan de puissance et la passivité. De plus, nous adoptons un cadre fonctionnel à temps continu pour représenter des signaux "analogiques virtuels" et nous proposons d'approximer les solutions par projection sur des trames temporelles. En tant que résultat principal, nous établissons une condition suffisante sur les projecteurs de sorte à obtenir des trajectoires à bilan de puissance garanti. Notre but est double: premièrement, pour gérer l'expansion de bande-passante causée par les nonlinéarités, nous considérons des méthodes numériques traitant des signaux à bande non-limitée qui à la place ont un "taux d'innovation borné"; Deuxièmement, pour revenir dans le domaine des signaux à bande limitée, nous concevons des "convertisseurs analogique-numérique virtuels" Plusieurs méthodes numériques sont construites afin d'être à bilan de puissance garanti, avec une précision d'ordre élevé et un un ordre de régularité contrôlable. Leurs propriétés sont étudiées: existence et unicité, ordre de précision, dispersion, mais aussi, résolution fréquentielle au delà de la fréquence de Nyquist, rejet du repliement ainsi que noyaux reproduisants et noyaux de Peano. Cette approche révèle des ponts entre l'analyse numérique, le traitement du signal et la théorie de l'échantillonnage généralisé en mettant en relation la précision, la propriété de reproduction des polynômes, la bande passante ou les bancs de filtre de Legendre, etc. Nous exposons un cadre systématique pour transformer des schémas électronique en équations puis en simulations. Ce cadre est ensuite appliqué à des circuits audio représentatifs, contenant à la fois des équations différentielles ordinaires et des équation algebro-différentielles. Un travail spécifique est dédié à la modélisation SHP des amplificateurs opérationnels. Enfin, nous revisitons la modélisation des SHP dans le cadre de l'algèbre géométrique, ce qui ouvre des perspectives pour l'encodage de la structure géométrique des équations
This work addresses the real-time simulation of nonlinear audio circuits. In this thesis, we use the port-Hamiltonian (pH) formalism to guarantee power balance and passivity. Moreover, we adopt a continuous-time functional framework to represent "virtual analog" signals and propose to approximate solutions by projection over time frames. As a main result, we establish a sufficient condition on projectors to obtain time-continuous power-balanced trajectories. Our goal is twofold: first, to manage frequency-bandwidth expansion due to nonlinearities, we consider numerical engines processing signals that are not bandlimited but, instead, have a "finite rate of innovation"; second, to get back to the bandlimited domain, we design "virtual analog-to-digital converters". Several numerical methods are built to be power-balanced, high-order accurate, with a controllable regularity order. Their properties are studied: existence and uniqueness, accuracy order and dispersion, but also, frequency resolution beyond the Nyquist frequency, aliasing rejection, reproducing and Peano kernels. This approach reveals bridges between numerical analysis, signal processing and generalised sampling theory, by relating accuracy, polynomial reproduction, bandwidth, Legendre filterbanks, etc. A systematic framework to transform schematics into equations and simulations is detailed. It is applied to representative audio circuits (for the UVI company), featuring both ordinary and differential-algebraic equations. Special work is devoted to pH modelling of operational amplifiers. Finally, we revisit pH modelling within the framework of Geometric Algebra, opening perspectives for structure encoding
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Asar, Sita Madhu. „An Audio Processing System as an Example of Modern Circuit Board Design“. The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1480588012253634.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Lin, Li-Yang. „VLSI implementation for MPEG-1/Audio Layer III chip : bitstream processor - low power design /“. [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18396.pdf.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

González, Santos Ángel de Dios. „Circuits de traitement de signal numérique en temps continu ultra-faible consommation en technologie 28nm FDSOI pour applications audio“. Thesis, Lille 1, 2020. http://www.theses.fr/2020LIL1I047.

Der volle Inhalt der Quelle
Annotation:
L’objectif de ce travail c’est l’étude et développement d’un système d’extraction des caractéristiques en utilisant techniques de traitement de signal en temps continu, afin de mitiger les inconvénients des implémentations existants basées en techniques analogiques et numériques conventionnelles, d’un système toujours en veille pour l’Internet des Objets. La cible est l’extraction du contenu spectral d’un signal audio en utilisant une nouvelle architecture basée en une cascade configurable de filtres à réponse impulsionnelle fini en temps continu. Un schéma efficace pour cascader des filtres est obtenu grâce aux techniques proposées pour l’élimination des glitches et du codage delta. Par ailleurs, ce travail introduit une fonction en temps continu pour estimer la puissance instantanée dans des bandes de fréquences sélectionnées et construire un spectrogramme à la sortie. Le système proposé à 12-bandes fréquentielles a été validée par des simulations comportementales. L’élément clé pour l’implémentation de ce système est un élément de délai numérique. Un nouveau élément de retard a été conçu et fabriquée en technologie 28 nm FDSOI et atteints une plage de délai record entre 30 ns et 97 µs avec une consommation de puissance de 15fJ/événement. En extrapolant ce résultat, le système proposé atteints une consommation approximée de 2.85 µW lors du traitement d’un signal vocal produit par une femme, tandis que la consommation statique est autours de 100 nW dans les périodes où il n’y a pas d’activité. Donc, la performance en termes de consommation moyenne d’énergie de ce système surpasse celle des implémentations dans l’état de l’art
The focus of this work is the study and development of a feature extraction system using Continuous-Time Digital Signal Processing (CT DSP) techniques, to mitigate the drawbacks of existing implementations based on traditional analog and digital solutions of always-on monitoring sensors for the Internet of Things (IoT). The target is to extract the spectral content of an audio signal using a novel architecture based on a cascade of configurable CT DSP Finite Impulse Response (FIR) filters. An efficient cascade scheme is enabled by the proposed glitch elimination and delta encoding techniques. Additionally, this work introduces a CT function to estimate the instantaneous power within selected frequency bands to build an output spectrogram. The proposed 12-band system has been validated using behavioral simulations. The key element for the implementation of this system is the digital delay element. A new delay element has been designed and fabricated in 28nm FDSOI technology and achieves a record tuning range from 30 ns to 97 µs with a power consumption of 15 fJ/event. By extrapolating this result, the system would have an overall peak power consumption of 2.85 µW when processing typical female speech, while consuming approximately 100 nW when no events are generated. Thus, the average system power consumption outperforms state-of-the-art feature extraction circuits
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Zhao, Yue. „Independent Component Analysis Enhancements for Source Separation in Immersive Audio Environments“. UKnowledge, 2013. http://uknowledge.uky.edu/ece_etds/34.

Der volle Inhalt der Quelle
Annotation:
In immersive audio environments with distributed microphones, Independent Component Analysis (ICA) can be applied to uncover signals from a mixture of other signals and noise, such as in a cocktail party recording. ICA algorithms have been developed for instantaneous source mixtures and convolutional source mixtures. While ICA for instantaneous mixtures works when no delays exist between the signals in each mixture, distributed microphone recordings typically result various delays of the signals over the recorded channels. The convolutive ICA algorithm should account for delays; however, it requires many parameters to be set and often has stability issues. This thesis introduces the Channel Aligned FastICA (CAICA), which requires knowledge of the source distance to each microphone, but does not require knowledge of noise sources. Furthermore, the CAICA is combined with Time Frequency Masking (TFM), yielding even better SOI extraction even in low SNR environments. Simulations were conducted for ranking experiments tested the performance of three algorithms: Weighted Beamforming (WB), CAICA, CAICA with TFM. The Closest Microphone (CM) recording is used as a reference for all three. Statistical analyses on the results demonstrated superior performance for the CAICA with TFM. The algorithms were applied to experimental recordings to support the conclusions of the simulations. These techniques can be deployed in mobile platforms, used in surveillance for capturing human speech and potentially adapted to biomedical fields.
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Li, Ye-Ming. „A design methodology for low phase noise in LC tuned CMOS voltage-controlled oscillators“. Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/14896.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Mehr Quellen

Bücher zum Thema "Audio circuits"

1

Bishop, Graham. Audio Circuits and Projects. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-07404-4.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Bishop, Graham. Audio circuits and projects. London: Macmillan, 1985.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Associates, Derivation and Tabulation, Hrsg. Audio/video integrated circuits. 7. Aufl. San Diego: D.A.T.A. Inc, 1988.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Institution of Electrical Engineers. Electronics Division. und Institution of Electrical Engineers. Professional Group E10., Hrsg. Colloquium on "Audio DSP - circuits and systems". London: Institution of Electrical Engineers, 1993.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Brindley, Keith. Audio IC projects. Oxford: BH Newnes, 1994.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Audio electronics. 2. Aufl. Oxford [England]: Newnes, 1999.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Hood, John Linsley. Audio electronics. Oxford [England]: BH Newnes, 1995.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Build your own AF valve amplifiers: Circuits for hi-fi and musical instruments. Dorchester: Elektor Electronics, 1995.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Berkhout, Marco. Integrated Audio Amplifiers in BCD Technology. Boston, MA: Springer US, 1997.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Back-to-basics audio. Boston: Newnes, 1998.

Den vollen Inhalt der Quelle finden
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Mehr Quellen

Buchteile zum Thema "Audio circuits"

1

Robinson, Kevin. „Constructing Circuits“. In Practical Audio Electronics, 153–60. Abingdon, Oxon : Routledge, an imprint of the Taylor & Francis Group, 2020.: Focal Press, 2020. http://dx.doi.org/10.4324/9780429343056-10.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Robinson, Kevin. „Integrated Circuits“. In Practical Audio Electronics, 315–34. Abingdon, Oxon : Routledge, an imprint of the Taylor & Francis Group, 2020.: Focal Press, 2020. http://dx.doi.org/10.4324/9780429343056-18.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Bishop, Graham. „Disco Circuits“. In Audio Circuits and Projects, 125–31. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-07404-4_6.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Bishop, Graham. „Music Circuits“. In Audio Circuits and Projects, 132–41. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-07404-4_7.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Bishop, Graham. „Audio Amplifiers“. In Audio Circuits and Projects, 15–25. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-07404-4_2.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Berkhout, Marco. „Chargepump Circuits“. In Integrated Audio Amplifiers in BCD Technology, 63–96. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-6083-8_3.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Bishop, Graham. „Noise and Rhythm Circuits“. In Audio Circuits and Projects, 98–124. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-07404-4_5.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

Bishop, Graham. „Why Amplifiers?“ In Audio Circuits and Projects, 1–14. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-07404-4_1.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Bishop, Graham. „Preamplifiers“. In Audio Circuits and Projects, 26–60. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-07404-4_3.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Bishop, Graham. „Power Amplifiers“. In Audio Circuits and Projects, 61–97. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-07404-4_4.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen

Konferenzberichte zum Thema "Audio circuits"

1

Coelho, P., J. M. do Amaral, E. N. Da Rocha und M. Bentes. „Audio Circuits Evolution through Genetic Algorithms“. In 24th International Conference on Enterprise Information Systems. SCITEPRESS - Science and Technology Publications, 2022. http://dx.doi.org/10.5220/0011062500003179.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
2

Ryu, Jeong, Suk Yoon, Myung Sunwoo und Jong Moon. „Audio-Specific Signal Processor(ASSP) for High-Quality Audio Codec“. In 2005 IEEE Asian Solid-State Circuits Conference. IEEE, 2005. http://dx.doi.org/10.1109/asscc.2005.251757.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
3

Saade, L., P. Weston und C. Roberts. „Deep Monitoring of Audio Frequency Track Circuits“. In 6th IET Conference on Railway Condition Monitoring (RCM 2014). Institution of Engineering and Technology, 2014. http://dx.doi.org/10.1049/cp.2014.1014.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
4

Weston, P. F., J. Chen, E. Stewart und C. Roberts. „Condition monitoring of audio frequency track circuits“. In IET International Conference on Railway Engineering 2008 (ICRE 2008). IEE, 2008. http://dx.doi.org/10.1049/ic:20080025.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
5

Cho, Minchang, Sechang Oh, Seokhyeon Jeong, Yiqun Zhang, Inhee Lee, Yejoong Kim, Li-Xuan Chuo et al. „A 6×5×4mm3 general purpose audio sensor node with a 4.7μW audio processing IC“. In 2017 Symposium on VLSI Circuits. IEEE, 2017. http://dx.doi.org/10.23919/vlsic.2017.8008521.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
6

Frith, P. J. „Audio Processor Integrated Circuit for Cellular Radios“. In Fourteenth European Solid-State Circuits Conference. IEEE, 1988. http://dx.doi.org/10.1109/esscirc.1988.5468252.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
7

Karimov, T. I., D. N. Butusov und A. I. Karimov. „Computer simulation of audio circuits with vacuum tubes“. In 2016 XIX IEEE International Conference on Soft Computing and Measurements (SCM). IEEE, 2016. http://dx.doi.org/10.1109/scm.2016.7519700.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
8

„Session 31 Overview: Audio Amplifiers“. In 2022 IEEE International Solid- State Circuits Conference (ISSCC). IEEE, 2022. http://dx.doi.org/10.1109/isscc42614.2022.9731721.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
9

Pavaloi, Ioan, Elena Musca und Florin Rotaru. „Emotion recognition in audio records“. In 2013 International Symposium on Signals, Circuits and Systems (ISSCS). IEEE, 2013. http://dx.doi.org/10.1109/isscs.2013.6651236.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
10

Howard, D. W., J. S. Urquhart, W. T. Brown und D. W. Flynn. „VIDC : A Combined Video/Audio Processor Chip“. In Twelfth European Solid-State Circuits Conference. IEEE, 1986. http://dx.doi.org/10.1109/esscirc.1986.5468329.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen

Berichte der Organisationen zum Thema "Audio circuits"

1

Garcia-Martin, M., und S. Veikkolainen. Session Description Protocol (SDP) Extension for Setting Audio and Video Media Streams over Circuit-Switched Bearers in the Public Switched Telephone Network (PSTN). RFC Editor, Mai 2014. http://dx.doi.org/10.17487/rfc7195.

Der volle Inhalt der Quelle
APA, Harvard, Vancouver, ISO und andere Zitierweisen
Die Auswahlen zum Thema "Audio circuits" für konkrete Quellenarten können Sie auch interessieren:
Zeitschriftenartikel Dissertationen Bücher
Wir bieten Rabatte auf alle Premium-Pläne für Autoren, deren Werke in thematische Literatursammlungen aufgenommen wurden. Kontaktieren Sie uns, um einen einzigartigen Promo-Code zu erhalten!

Zur Bibliographie