The Analysis of Electroacoustic Music: from sources to invariants

2006 ◽  
Vol 11 (2) ◽  
pp. 101-112 ◽  
Author(s):  
BRUNO BOSSIS
Keyword(s):  
Real Time ◽  
Electroacoustic Music ◽  
Musical Instruments ◽  
Documentary Sources ◽  
Synthetic Vision ◽  
Technological Context ◽  
Systematic Musicology ◽  
Many Sources ◽  
Musical Genres

The musicologist is confronted with many situations during the analysis of electroacoustic music, whether on support media, mixed, or real-time. Musical genres and styles vary greatly, and the collection of electronic musical instruments has also proven to be very heterogeneous. The intrinsic characteristics of the electroacoustic parts and their scoring create serious limitations. Furthermore, many sources remain inaccessible or are already lost. Thus the preoccupation with documentary sources related to the acts of creation, interpretation, and technological context becomes more and more pressing. It is now essential to formulate a synthetic vision of this music, which has existed for half a century, and to pursue the search for invariants. This work must be based on a rigorous methodology that has yet to be developed. More generally speaking, the goal is to establish the terms and conditions of a systematic musicology of electroacoustics.

scholarly journals Real-Time Runway Detection for Infrared Aerial Image Using Synthetic Vision and an ROI Based Level Set Method

2018 ◽  
Vol 10 (10) ◽  
pp. 1544 ◽  
Author(s):  
Changjiang Liu ◽  
Irene Cheng ◽  
Anup Basu
Keyword(s):  
Real Time ◽  
Level Set Method ◽  
Level Set ◽  
Infrared Image ◽  
Region Of Interest ◽  
Aerial Image ◽  
Real Time Processing ◽  
Synthetic Vision ◽  
Level Set Function ◽  
Rough Region

We present a new method for real-time runway detection embedded in synthetic vision and an ROI (Region of Interest) based level set method. A virtual runway from synthetic vision provides a rough region of an infrared runway. A three-thresholding segmentation is proposed following Otsu’s binarization method to extract a runway subset from this region, which is used to construct an initial level set function. The virtual runway also gives a reference area of the actual runway in an infrared image, which helps us design a stopping criterion for the level set method. In order to meet the needs of real-time processing, the ROI based level set evolution framework is implemented in this paper. Experimental results show that the proposed algorithm is efficient and accurate.

scholarly journals A Historical Perspective of Mangalavattiyam

2021 ◽  
Vol 3 (2) ◽  
pp. 1-10
Author(s):  
Suganya Aravinthon
Keyword(s):  
Instrumental Music ◽  
Historical Perspective ◽  
Vocal Music ◽  
Research Paper ◽  
Musical Instruments ◽  
The Other ◽  
Historical Study ◽  
Solo Music ◽  
Musical Genres ◽  
Over Time

From the earliest days of the Tamil music tradition, music was considered to be a combination of vocal music, instrumental music and dance. Each of these musical genres is closely intertwined. Knowledge of one helps to know about the other. Instrumental music has been interpreted as accompaniment to solo music and dance and as a solo specialty. In Bharata's book 'Natyashasthram', musical instruments are generally divided into four categories as nerve (tata) hole (kasira) ¸ skin (avanatta) ¸ kana (kanja). In this context, it is a research paper on the history and use of the Nagaswaram and thavil instruments, which are referred to today as the Mangala Vaathyam, which the Tamils ​​have merged with their culture.  This article also examines in detail the ideological changes that have taken place over time in the use of these two musical instruments. At the same time, the use of these instruments in the sociological context is taken into account. Finally, this article is a historical study of the lineage of musicians who have mastered these instruments.

Virtual guitar: using real-time finger tracking for musical instruments

2019 ◽  
Vol 18 (4) ◽  
pp. 438 ◽  
Author(s):  
Noorkholis Luthfil Hakim ◽  
Shih Wei Sun ◽  
Mu Hsen Hsu ◽  
Timothy K. Shih ◽  
Shih Jung Wu
Keyword(s):  
Real Time ◽  
Musical Instruments ◽  
Finger Tracking

Making the Archive and Archiving the Making: insights and outcomes from a major research project

2006 ◽  
Vol 11 (2) ◽  
pp. 143-147 ◽  
Author(s):  
SIMON WATERS
Keyword(s):  
Real Time ◽  
Performance Practice ◽  
Electroacoustic Music ◽  
The Other ◽  
Technical Level ◽  
Research Projects ◽  
Major Research ◽  
Research Project ◽  
Aesthetic Judgement ◽  
And Performance

This paper seeks to address some of the problems faced by those archiving an area of musical practice – electroacoustic music and the sonic arts – which is, by definition, involved with technologies which change and develop, and which unsurprisingly is itself in a state of flux and transformation. Drawing on the experience gained from two linked research projects – one looking at the development of the practice, the other seeking to archive it – it is suggested that the two apparently disparate areas of activity can be fruitfully regarded as overlapping in many respects. Both activities involve selection and aesthetic judgement, both strive for an elusive ‘completeness’ while acknowledging its impossibility, and at a technical level the strategies now emerging for searching and collating information from ‘separate’ archives look increasingly like the strategies used in some areas of ‘real-time’ composition and performance practice. It is argued that archivists of material from such a disparate and rapidly developing practice, rather than aiming for spurious ‘coverage’ of the field, should acknowledge and celebrate their difference from each other, while conforming to simple principles which will allow their archived content to be searched and collated dynamically by individual users, each querying and configuring the material optimally for their own purposes.

Some Principles of Visual Design for Computer Music

2016 ◽  
Vol 26 ◽  
pp. 14-19
Author(s):  
Ge Wang
Keyword(s):  
Real Time ◽  
Computer Music ◽  
Time Integration ◽  
Design Principles ◽  
Musical Instruments ◽  
Visual Design ◽  
Audio Visualization

This article presents observations pertaining to expressive visual design for computer music, focusing in particular on real-time integration of graphics and audio. The author describes specific projects as examples supporting a set of design principles that range from “user-oriented” to “aesthetic” and other observations. Examples include audio visualization, game-like interfaces, and mobile musical instruments.

scholarly journals A Hardware-Oriented Algorithm for Real-Time Music Key Signature Recognition

2021 ◽  
Vol 11 (18) ◽  
pp. 8753
Author(s):  
Paulina Kania ◽  
Dariusz Kania ◽  
Tomasz Łukaszewicz
Keyword(s):  
Real Time ◽  
Subject Matter ◽  
Musical Instrument ◽  
Musical Instruments ◽  
Music Notation ◽  
The Real ◽  
Chromatic Scale ◽  
Preludes And Fugues ◽  
Signature Recognition ◽  
The Subject

The algorithm presented in this paper provides the means for the real-time recognition of the key signature associated with a given piece of music, based on the analysis of a very small number of initial notes. The algorithm can easily be implemented in electronic musical instruments, enabling real-time generation of musical notation. The essence of the solution proposed herein boils down to the analysis of a music signature, defined as a set of twelve vectors representing the particular pitch classes. These vectors are anchored in the center of the circle of fifths, pointing radially towards each of the twelve tones of the chromatic scale. Besides a thorough description of the algorithm, the authors also present a theoretical introduction to the subject matter. The results of the experiments performed on preludes and fugues by J.S. Bach, as well as the preludes, nocturnes, and etudes of F. Chopin, validating the usability of the method, are also presented and thoroughly discussed. Additionally, the paper includes a comparison of the efficacies obtained using the developed solution with the efficacies observed in the case of music notation generated by a musical instrument of a reputable brand, which clearly indicates the superiority of the proposed algorithm.

scholarly journals On Egnos Monitoring in Local Conditions

2013 ◽  
Vol 48 (2) ◽  
pp. 85-92 ◽  
Author(s):  
Andrzej Felski ◽  
Aleksander Nowak
Keyword(s):  
Real Time ◽  
Naval Academy ◽  
Sources Of Information ◽  
Local Conditions ◽  
Local Monitoring ◽  
System Integrity ◽  
Random Character ◽  
Many Sources ◽  
Fault Information ◽  
Better Than

ABSTRACT Any SBAS system should deliver to the user corrections to pseudoranges as well as information about the system integrity. In theory, as soon as the system is permanently monitored by RIMS stations, it is impossible to deliver the fault information to the user. However many observations shows that accuracy of EGNOS service in the same time are different in different places, which shows the influence of local conditions on them. In addition evidences on possibilities in jamming or spoofing of GPS signals should be seriously taken into account. According to many sources of information, among them observations of authors, present accuracy of EGNOS service has better than declared. In fact EGNOS accuracy is about 1,5m (95%), but availability of the service happens still controversial and it has random character. According to reports essential differences as well as lack of correlation of this parameter in the different point of observations has been observed. So in author’s opinion Local Monitoring of EGNOS service can contribute to better confidence of local users, especially in critical operations, like for example berthing of big ships or in landing operations with EGNOS procedures. An example of such system which works in real time has been elaborated in Polish Naval Academy and will be presented.

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