202,357 research outputs found
Object coding of music using expressive MIDI
No full textPhDStructured audio uses a high level representation of a signal to produce audio output.
When it was first introduced in 1998, creating a structured audio representation
from an audio signal was beyond the state-of-the-art. Inspired by object coding and
structured audio, we present a system to reproduce audio using Expressive MIDI,
high-level parameters being used to represent pitch expression from an audio signal.
This allows a low bit-rate MIDI sketch of the original audio to be produced.
We examine optimisation techniques which may be suitable for inferring Expressive
MIDI parameters from estimated pitch trajectories, considering the effect of data
codings on the difficulty of optimisation. We look at some less common Gray codes
and examine their effect on algorithm performance on standard test problems.
We build an expressive MIDI system, estimating parameters from audio and synthesising
output from those parameters. When the parameter estimation succeeds,
we find that the system produces note pitch trajectories which match source audio to
within 10 pitch cents. We consider the quality of the system in terms of both parameter
estimation and the final output, finding that improvements to core components {
audio segmentation and pitch estimation, both active research fields { would produce
a better system.
We examine the current state-of-the-art in pitch estimation, and find that some
estimators produce high precision estimates but are prone to harmonic errors, whilst
other estimators produce fewer harmonic errors but are less precise. Inspired by this,
we produce a novel pitch estimator combining the output of existing estimators
Moving Image Artist Midi Onodera's Vidoodles
No full textAs an acknowledgement of Midi Onodera's long and productive career as a Canadian artist and filmmaker who has consistently demonstrated critical engagement with her subjects and her chosen media, we have invited her to be the guest artist-filmmaker for the inaugural issue of Imaginations: Journal of Cross-Cultural Image Studies
The MIDI Linked Data Cloud dataset
No full text<p>The study of music is highly interdisciplinary, and thus requires the combination of datasets from multiple musical domains, such as catalog metadata (authors, song titles, dates), industrial records (labels, producers, sales), and music notation (scores). While today an abundance of music metadata exists on the Linked Open Data cloud, datasets containing interoperable symbolic descriptions of music itself, i.e. music notation with note and instrument level information, are scarce. This is the MIDI Linked Data Cloud, a dataset that represents multiple collections of digital music in the MIDI standard format as Linked Data. At the time of writing, the dataset comprises 10,215,557,355 triples of 308,443 interconnected MIDI scores, and provides Web-compatible descriptions of their MIDI events.</p>
Les Annales du Midi en deuil : François Galabert (1873-1957)
No full textAnnales du Midi : Revue archéologique, historique et philologique de la France Méridionale. Les Annales du Midi en deuil : François Galabert (1873-1957). In: Annales du Midi : revue archéologique, historique et philologique de la France méridionale, Tome 69, N°40, 1957. p. 291
MIDI-AM Videogame Usability in Virtual Learning as a Digital Pedagogical Tool in Emerging Economies
No full textThis article analyzes educational video games' usability as a pedagogical support tool in primary early childhood education, particularly in virtual environments of emerging economies. The MIDI-AM series of educational digital games is used as a case study that focuses on learning by playing using technology. The study examines the degree of usability, applicability, and relevance of these serious games as pedagogical tools in educational virtuality, identifying opportunities for improvements and designing a practical methodology to evaluate them as part of the teaching-learning process. A triangulated analysis is carried out with mixed methods, evaluating data generated in a control panel of MIDI-AM applications, focus groups with teachers and parents of local schools, and user satisfaction questionnaires. The results regarding usability and relevance of the applications were primarily positive. However, certain shortcomings in these applications' structure and possible opportunities for improvement within the educational context applicability were also identified. </p
Conclusions. L'ancient et le nouveau: remarques sur l'historiographie des villes du Midi
No full textLa singularité urbaine des villes du Midi français a souvent été négligée. Coincées entre le modèle communal italien triomphant et le puissant mouvement urbain des villes flamandes ou rhénanes, elles apparaissent comme faiblement typées ; leur intégration dans l’espace capétien aurait également limité leur capacité d’autogouvernement et de discussions avec les autorités centrales. Pourtant, le dynamisme de ces cités méridionales est avéré, aussi bien dans leur élan démographique que dans la force des échanges économiques. Que dire également de leur place dans le développement des mouvements religieux contestaires et de leur rayonnement intellectuel facilité par la présence de grandes universités au recrutement international ! À la lumière des nombreux et récents travaux sur le sujet, le colloque offre la première approche comparative sur ces villes méridionales, en insistant sur les traits identitaires qui définissent leurs contours originaux, en particulier dans l’organisation politique
Advanced Media Control Through Drawing: Using a graphics tablet to control complex audio and video data in a live context
No full textThis paper demonstrates the results of the authors’ Wacom tablet MIDI user interface. This application enables users’ drawing actions on a graphics tablet to control audio and video parameters in real-time. The programming affords five degrees (x, y, pressure, x tilt, y tilt) of concurrent control for use in any audio or video software capable of receiving and processing MIDI data
A framework for the real-time analysis of musical events
No full textIn this thesis I propose a framework for the real-time creation of a harmonic structural model of music. Unlike most uses of computing in musicology which are based on batch processing, the framework uses publish/subscribe messaging techniques found in business systems to create an interconnected set of collaborating applications within a network that process streamed events of the kind generated during a musical performance. These applications demonstrate the transformation of data in the form of MIDI commands into information and knowledge in the form of the music’s harmonic structure represented as a model using semantic web techniques.With such a framework, collaborative performances over the network become possible with a shared representation of the music being performed accessible to all performers both human and potentially software agents. The framework demonstratesnovel real-time implementations of pitch spelling, chord and key extraction algorithms interacting with semantic web and database technologies in a collaborative manner. It draws on relevant research in information science, musical cognition, semantic web and business messaging technologies to implement a framework and set of software components for the real-time analysis of musical events, the output of which is adescription of the music’s harmonic structure. Finally, it proposes a pattern based approach to querying the generated model which suggests a visual query and navigation paradigm
P. Arqué, Géographie du Midi aquitain, 1939
No full textD. H. P. Arqué, Géographie du Midi aquitain, 1939. In: L'information géographique, volume 3, n°5, 1939. p. 239
USING WEBSOCKET TECHNOLOGY FOR SENDING MIDI SIGNALS
No full textGlasbeni inštrumenti lahko medsebojno komunicirajo z uporabo protokola MIDI, ki je sprejet kot standard v glasbeni industriji. Včasih bi si želeli realno časovno glasbeno komunikacijo prenesti do oddaljene lokacije, za kar je splet zelo dobra infrastruktura. V diplomskem delu bomo predstavili spletno tehnologijo WebSocket in standard za komunikacijo med glasbenimi napravami MIDI. Opisali bomo izdelovanje in uporabo tako strežnika, ki bo oddajal vhodne MIDI signale preko spleta, kakor tudi odjemalske spletne aplikacije, ki bo te podatke sprejemala ter prikazovala v uporabniku razumljivi obliki.Music instruments can communicate with each other using the MIDI protocol, which is accepted as a standard in the music industry. Sometimes you might want real-time communication scale to a longer distance for what is the Internet a very good infrastructure. In this thesis we will present web technology WebSocket and MIDI, standard for communication between music devices. We will describe the creation and use of both server that will send incoming MIDI signals over the Internet, as well as client web application that will receive this information and display it in a user-comprehensible form
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