CRANE lab

MusiqueÉlectronique

« Rencontres Acousmatiques 2025 » linktr.ee/cranelab When Sound Moves : Reflections on Multichannel Practice Manolis EKMEKTSOGLOU manolisekmektsoglousite.wordpress.com

Composing for 32 channels is a challenging task for composers of all experience levels. While creating the piece, I realized that several factors had not been fully taken into account. For example, some sonic trajectories did not work as effectively as I had anticipated based on the diffusion map. From what I observed in other composers’ works, it would have been more effective to use sounds that are easier to localize, such as noise, for certain spatial movements.

On the other hand, some moments were even more successful than planned. Around the middle of the piece, the bass became more prominent than I had imagined, and its intensity caused objects in the diffusion space to vibrate, enhancing the overall perceptual effect.

The round table discussions provided much food for thought, including references to historical precedents such as Xenakis’s Polytopes, which explored immersive multichannel sound environments. Jean Voguet’s and the participants’ insights on how sound travels in a 3D space, especially in rooms with speakers at varying heights, were particularly enlightening. I gained a much clearer understanding of how sound reflects in these spaces, how a piece is shaped by certain sound types and what can undermine it, and how crucial different diffusion strategies are for highlighting specific elements within the panorama.

These considerations will be crucial for future multichannel compositions, where precise spatialization is as important as the musical material itself.

 


Quand le son bouge : réflexions sur la pratique multicanale

Composer pour 32 canaux est un défi pour les compositeurs, quel que soit leur niveau d'expérience. Durant la création de mon œuvre, je me suis rendu compte que plusieurs facteurs n'avaient pas été pleinement pris en compte. Par exemple, certaines trajectoires sonores ne fonctionnaient pas aussi efficacement que je l'avais prévu en utilisant le schéma de la configuration du dispositif. D'après ce que j'ai observé dans les œuvres d'autres compositeurs, il aurait été plus efficace d'utiliser des sons plus faciles à localiser, tels que des bruits, pour certains mouvements spatiaux.

D'un autre côté, certains moments ont été encore plus réussis que prévu. Vers le milieu de la pièce, la basse est devenue plus présente que je ne l'avais imaginé, et son intensité a fait vibrer les objets dans l'espace de diffusion, renforçant ainsi l'effet perceptif global.

Les tables rondes ont donné matière à réflexion, notamment grâce à des références et des précédents historiques tels que les Polytopes de Xenakis, avec lesquels il explorait les environnements sonores multicanaux immersifs. Les réflexions de Jean Voguet et des participants sur la façon dont le son se propage dans un espace 3D, en particulier dans des pièces équipées d'enceintes à différentes hauteurs, ont été particulièrement éclairantes. J'ai acquis une compréhension beaucoup plus claire de la manière dont le son se réfléchit dans ces espaces, de la manière dont une œuvre est façonnée par certains types de sons et de ce qui peut la compromettre, ainsi que de l'importance cruciale des différentes stratégies de diffusion pour mettre en valeur des éléments spécifiques au sein du panorama.

Ces considérations seront cruciales pour les futures compositions multicanales, où une spatialisation précise est aussi importante que le matériau musical lui-même.


#cranelab #ManolisEkmektsoglou #acousmatique #MusiqueAcousmatique #MusiqueÉlectronique #MusiqueMulticanale #3Daudio #acousmatic #AcousmaticMusic #ElectronicMusic #MultichannelMusic

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CRANE lab Research Center Heterotopia, Acousmatic Music, Volumiphony, Action Art & Ethics of Arts

« Rencontres Acousmatiques 2025 » linktr.ee/cranelab Variation as Volume Amir TEYMURI teymuri.codeberg.page

Firstly, I would like to note that the spatialization of sound is not a central focus of my musical creation. My primary interest lies in the creation of transitional sound sequences (see my article on Sounding Future : https://www.soundingfuture.com/en/article/creating-tonal-transitions-using-dynamic-time-warping ). However, this does not mean that the localization of sounds in my work is arbitrary or unimportant! On the contrary, the composed placement of sounds and their choreography is a compositional tool that I use to make the overall picture of a multi-channel piece distinguishable and directed. This also means that the sound-geography of my compositions is usually pre-declared and “ingrained” in the piece, making live diffusion during a performance largely unnecessary (exceptions include spontaneous adjustments due to room acoustics during playback).

In this short text, I would like to share some of my thoughts regarding polyphony and multichannel music. These thoughts specifically relate to my recent work, which was presented at the « Rencontres Acousmatiques 2025 ».

The question of polyphony in multichannel music, in my view, cannot be reduced “merely” to the number of voices, but is highly dependent on the sonic characteristics and the relatedness of the events within the voices. One such property, which simultaneously provides structure, is the confidence-building “instrument” of repetition (or its sister technique, variation). Although the term repetition intuitively relates to time (i.e., the repetition of rhythmic patterns), no restriction of the repetitive to the temporal dimension is intended here. Any further sonic dimension can become a recognizable, form-building element through direct repetition or through “indirect repetition” (read : variation). Thus, repetition and variation allow the separate events in the individual channels to be perceived as related, even identical, structures, thereby turning the polyphonic complexes into a “collective event” that is easier to decode.

To evaluate the degree of perceptibility of polyphonic structures, I would like to propose the following classification, which places the “relatedness of sounds” at its core :

The perceptibility of simultaneous sound events, primarily depends on two criteria: 1. the number of voices and 2. the similarity of the sound materials used in the respective voices and their developments. Assuming that an electronic sound can consist of (arbitrarily) many dimensions (in contrast to the more limited natural-based or object-based sounds, such as sounds produced with physical objects or instruments), the hypothesis can be formulated that each of the dimensions of an N-dimensional sound represents a reference point that allows a similarity comparison with a “cognate” sound (a sound composed of the same dimensions). A dimension can include classical, general parameters such as duration, pitch, and intensity, or extended parameters such as the harmonic nature of the sound, various filter or equalizer settings to control the frequency content, the fine localization of the sound in space (with adequate speaker setups), envelope characteristics, reverb parameters, etc.

Based on this generalization and the resulting possibility to measure difference and distance between sounds (considered as compositions of their dimensions), it can be defined that the perceptibility of polyphonic/multichannel structures decreases with the reduction in similarity of the dimensions of sound events and their development schemes – and this in inverse relation to the number of channels/voices (https://teymuri.codeberg.page/assets/img/graph.png). 

In the lower left corner of the graph, where the perceptibility is shown to be highest, the respective dimensions exhibit maximum similarity (they are identical !), and the number of voices is at its lowest (a single voice). In simpler terms, this means exactly the same sound in the same channel! In this case, the perceptual task is to follow this single voice. The degree of perceptual quality is illustrated in the graph by the size of the circles, which decreases with the increase in the number of channels/voices and the decrease in similarity between the dimensions (towards the upper right corner of the graph. It should be noted here that the capacity for – spatial – polyphony in electronic music is not fully generalizable and objectively describable. This ability can naturally vary from listener to listener through training and personal predisposition.).

A strategy for creating multichannel music that I have developed based on these observations and applied, among other pieces, in Warping Time in Search of Similarity – presented at the « Rencontres Acousmatiques 2025 » – involves creating sonic and structural variations of the same material for each voice. This allows for the realization of complex polyphonic structures in an 8-channel environment with the constant presence of at least eight voices through parametric similarities. Such parallel layers can be found in all three parts of the piece :

  • 1st part: the long section of the start to ca. minute 8:39 ;
  • 2nd part: from 8:39 to approximately 10:04 ;
  • and finally the coda: from 10:04 to the end.

Although in Warping Time in Search of Similarity each of the eight individual layers undergoes its own sonic development, an overall homogeneity is ensured through the relatedness of the sound material and the “gestural” development of the layers.


#cranelab #AmirTeymuri #acousmatique #MusiqueAcousmatique #MusiqueÉlectronique #MusiqueMulticanale #3Daudio #acousmatic #AcousmaticMusic #ElectronicMusic #MultichannelMusic

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CRANE lab Research Center Heterotopia, Acousmatic Music, Volumiphony, Action Art & Ethics of Arts

in residency from September 11 to 18, 2025

linktr.ee/cranelab image mattiabenedetti.xyz

Mattia Benedetti (1995-) is an Italian composer who creates acousmatic music, pieces for instruments and live electronics, as well as A/V compositions.

He is interested in silence, algorithmic and random techniques, and the relationships between sounds and words.

His works have been presented in Europe, North and South America, and Asia.


Mattia Benedetti (1995-) est un compositeur italien qui crée de la musique acousmatique, des pièces pour instruments et électronique live, ainsi que des compositions audiovisuelles.

Il s'intéresse au silence, aux techniques algorithmiques et aléatoires, ainsi qu'aux relations entre les sons et les mots.

Ses œuvres ont été présentées en Europe, en Amérique du Nord et du Sud, ainsi qu'en Asie.


#cranelab #MattiaBenedetti #acousmatique #volumiphonie #MusiqueAcousmatique #MusiqueÉlectronique #MusiqueMulticanale #3Daudio #acousmatic #volumiphony #AcousmaticMusic #ElectronicMusic #MultichannelMusic

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CRANE lab Research Center Heterotopia, Acousmatic Music, Volumiphony, Action Art & Ethics of Arts

Résidences Volumiphoniques - Volumiphonic Residencies https://linktr.ee/cranelab

Le CRANE lab lance un programme de Résidences Volumiphoniques sur son dispositif multicanal 32.2 The CRANE lab is launching a program of Volumiphonic Residencies on its 32.2 multichannel device.

Les résidences se déroulent du mois de mai à la fin octobre. Residencies run from May to the end of October.

Modalités et plus d'infos – Details and further information : < rglxzwtn@anonaddy.me >

#cranelab #acousmatique #MusiqueAcousmatique #volumiphonie #MusiqueÉlectronique #MusiqueMulticanale #Audio3D #acousmatic #AcousmaticMusic #volumiphony #ElectronicMusic #MultichannelMusic

  image linktr.ee/cranelab

CRANE lab Research Center Heterotopia, Acousmatic Music, Volumiphony, Action Art & Ethics of Arts