the memory machine is a context-, people- and site-specific interactive sound installation. it has been developed as a collaboration between two composers, cathy lane and nye parry, who share an interest in sound, oral history, and memory. the memory machine is an ongoing project which, most recently, was part of the british museum's 250th anniversary exhibition entitled the museum of the mind; art and memory in world cultures.

this paper discusses the background and ideas behind the memory machine within the context of the composers' work. the development of the project in collaboration with the british museum is described and an evaluation of some of the issues around the public exhibition of the piece is given as well as a full technical description of the different elements of the installation.

Perceptual dimensions underlying timbre and sound-source identification have received considerable scientific attention. While these scholarly insights help us in understanding the nature of sound within a multidimensional timbral space, they carry little meaning for the majority of musicians. To help address this, we conducted two experiments to establish listeners’ perceptual thresholds (PT) for changes in sound using a staircase-procedure. Unlike most timbre perception research, these changes were sonic manipulations that are common in synthesisers, audio processors and instruments familiar to musicians and producers, and occurred within continuous sounds (rather than between discrete pairs of sounds). In experiment 1, two sounds (variants of a sawtooth oscillation) both with the same fundamental frequency (F1: 80 Hz, 240 Hz or 600 Hz) were played with no intervening gap. In each trial, the two sounds’ partials differed in amplitudes or frequencies to produce a timbre change. The sonic manipulations were varied in size to detect thresholds for the perceived timbre change – listeners were instructed to indicate whether or not they perceived a change within the sound. In experiment 2, we modified stimulus presentation to introduce the factor of transition time (TT). Rather than occurring instantaneously (as in experiment 1), the timbre manipulations were introduced gradually over the course of a 100 ms or a 1000 ms TT. Results revealed that PTs were significantly affected by the manipulations in experiment 1, and additionally by TT in experiment 2. Importantly, the data revealed an interaction between the F1 and the timbre manipulations, such that there were differential effects of timbre changes on the perceptual system depending on pitch height. Musicians (n=11) showed significantly smaller PTs compared to non-musicians (n=10). However, PTs for musicians and non-musicians were highly correlated (r=.83) across different sonic manipulations, indicating similar perceptual patterns in both. We hope that by establishing PTs for commonly used timbre manipulations, we can provide musicians with a general perceptual unit, for each manipulation, that can guide music composition and assessment.

The development of computers and technology has made electroacoustic music an important part of modern music. In an effort to broaden the musical dimension and to offer more possibilities for timbral combinations, composers have used various techniques to combine electroacoustic music with acoustic instruments, giving traditional instrumental music a richer timbre, a wider range of pitches and greater sonic expressiveness. The pipa, a typical representative of Chinese music culture, has a long history and its unique timbre is widely loved by electroacoustic music composers. This article uses Marc Battier’s mixed music Mist on a Hill (for pipa and electroacoustic sounds) as an example to explore the integration and practical use of Chinese folk elements in electroacoustic music.

In this contribution to the twentieth anniversary issue of Organised Sound, I first recall the reasons for dedicating a periodical to organised sound which I mentioned in my answer to inquiries from Cambridge University Press before the journal existed. The digital era is still in its infancy and it will permit a host of new ways to organise sound. I suggest in particular the development of an intimate relationship between acoustic and digital sounds; the extension of structural notations of sound and music and their exploitation for novel musical transformation; the amplification of the use of functions and combinations of functions. I evoke some issues discussed in Organised Sound, elaborating in more detail some problematic topics: analysis and reconstruction of computer music, live electronic music performance, perception of musical sound and sensory aesthetics.

Over the past five years, a digital community of CD-ROM artists has begun to emerge. The one element that serves as the common thread to this particular community is that these artists and their works are based on a new musical presentation, one fully tied to a visual element, an interactive, exploratory world that is tailored to the individual user's progress through a finite number of elements. In short, although intermedia works have a long history, now the user may explore at his/her own pace. This unique manner of presentation has emerged into the worlds of art music, underground music, and performance art.

This paper describes a large, interactive sound installation that was presented in Oslo during October 2002. The installation, in broad terms, brought the presence of the whole country into the one location through sound, and made the sound available for the public as material to play with or explore in a more structured fashion. The sonic results were streamed to the Internet, together with images from the exterior of the installation. The installation was located at the central train station in an area where thousands of people pass through every day. The curatorial idea was developed by two institutions, as an answer to their missions of providing interesting sonic material and events for the whole country. The idea was given concrete form by three composers, and brought up on a national level through co-arrangement with a large festival of contemporary music. Funding for the installation was provided by both private and public organisations. The installation serves as an example on how a large and complex work of art can be developed through institutional curatorial effort, artistic intentions and activity, and commercial interests. The installation maintained a high degree of artistic integrity while being accessible and attractive for large audiences.

Electronic systems designed to improvise with a live instrumental performer are a constant mediation of musical language and artificial decision-making. Often these systems are designed to elicit a reaction in a very broad way, relying on segmenting and playing back audio material according to a fixed or mobile set of rules or analysis. As a result, such systems can produce an outcome that sounds generic across different improvisers, or restrict meaningful electroacoustic improvisation to those performers with a matching capacity for designing improvisatory electroacoustic processing. This article documents the development of an improvisatory electroacoustic instrument for pianist Maria Donohue as a collaborative process for music-making. The Donohue+ program is a bespoke electroacoustic improvisatory system designed to augment the performance capabilities of Maria, enabling her to achieve new possibilities in live performance. Through the process of development, Maria’s performative style, within the broader context of free improvisation, was analysed and used to design an interactive electronic system. The end result of this process is a meaningful augmentation of the piano in accordance with Maria’s creative practice, differing significantly from other improvising electroacoustic instruments she has previously experimented with. Through the process of development, Donohue+ identifies a practice for instrument design that engages not only with a performer’s musical materials but also with a broader free improvisation aesthetic.

From the early experimentation with specific sounds in musique concrète (Palombini 1999) to the ‘anecdotal’ music of Luc Ferrari (1996) and the ecological sound activism of Hildegard Westerkamp (2002), the collecting, composition and recomposition of sonorous objects has been central to sound practice. Some sound art has privileged a relationship with visual arts and the structuring of objects in curated spaces (Licht 2007), others with the sound worlds beyond the exhibition (Schafer 1994). By examining a specific sound art installation, Sound and Seclusion by Tim Shaw, this article reworks the idea of sonorous objects as artefacts displaying different kinds of representations, knowledges or data. This question of sonorous ‘knowledge-objects’ is particularly important as ‘collected sounds’ become incorporated into compositions away from their, often remote, spatio-temporal origin out there in the landscape. This article raises three areas for discussion. First, what can sonorous objects tell us about the pre-compositional world (Impett 2007)? Second, in what ways can we understand sonorous objects as they are reworked in compositions which re-narrate them? Third, how can we understand sonorous objects as traces and pieces of data as well as aesthetic productions? The article concludes with a case for reworking the very idea of a sonorous object in sound practices as a product of dead logics and dead worlds as it emerges in new ensembles of composition away from its origin.

This article discusses the role of electroacoustic music practice in the context of human–robot interaction (HRI), illustrated by the first author’s work creating the sonic language of interactive robotic artwork Diamandini. It starts with a discussion of the role of sound in social robotics and surveys various notable conceptual approaches to robot sound. The central thesis of the article is that electroacoustic music can provide a valuable source of aesthetic considerations and creative practice for the creation of richer and more refined sonic HRIs by giving practitioners new ways to create believable sounding objects, to convey fiction, agency and animacy, and to communicate causality in auditory feedback. To demonstrate this, the authors describe the rationale for treating robot sound design as a compositional process and discuss the implications of the endeavour’s non-linear and site-specific nature. These considerations are illustrated using sound examples and design decisions made throughout the creation process of the robotic artwork. The authors conclude with observations on how the compositional process is affected by this particular application context.

There are a number of electroacoustic (EA) composers who draw on spiritual or religious material for their work. However, for some the word ‘spiritual’ is problematic, being too vague or broad, and the word ‘religious’ too narrow. To refine the word ‘spiritual’ therefore, in a way that might be acceptable also to those who are religious, I employ the contemporary concept of spiritual intelligence (SI) as a proposed framework for linking a discourse of spirituality with electroacoustic music. In addition to postulating SI as a way of framing the word ‘spirituality’, I identify three different ways in which EA composers draw on spiritual or religious material: some use existing sacred texts or methods; some approach sound itself to explore the nature of reality; finally, there are those who are drawn to ancient ways of understanding where spirit and material worlds are not separated; for example, in the West, the Pythagorean tradition.

This article describes the design and implementation of MidiVisualiser, a virtual environment which provides an interactive visualisation of MIDI music data. Section 1 explores music visualisation in general and examines the role of computers and virtual environments. Section 2 briefly surveys existing music visualisation research and places MidiVisualiser in context. Section 3 examines various techniques of visualisation and discusses composite dimensions and ‘Benediktine cyberspace’, including a description of how visualisation techniques derived from them were used in MidiVisualiser to overcome some of the difficulties associated with representing large numbers of data attributes simultaneously. Sections 4 and 5 contain an overview of the implementation and evaluation of MidiVisualiser, while section 6 discusses future work and conclusions.

This article discusses space and interactivity in relation to some of the author's compositions for performers and computer. It outlines approaches to musical space relevant to those works arising from the realms of acousmatic, instrumental/acoustic and soundscape composition, and explores the conflict arising when a variety of listening practices are employed by the spectator-listener. This conflict challenges the perceived boundaries that differentiate genres, and also challenges the significance of existing ‘instrumental’ definitions of interactive computer music to the author's work. The author's approach to investigating this issue through composition is discussed, using two pieces as examples: Words on the streets are these (2001), an interactive installation, and Still Life (2002), a concert piece for string quartet and live electroacoustics. Technical and aesthetic aspects are outlined, specifically in relation to the experience of the spectator-listener. The overall aim is to emphasise the importance of considering spatial issues in composing interactive music, and to examine how the interplay of spatial concepts might be explored in practice.

Schizophonic soundscapes in Murray Schafer's critical acoustic ecology mean a split between listening and seeing, between space and place, between audience and communicator. His idea of a gap between senses is based on electronic media like radio and telephone, but it gains new actuality in modern (multimedia) times. The new technology and its users have too experimented with the creative inversion of schizophony in sound and vision. Film sound design and film music combine sound in and out of context, composition works with contrapunctual audiovisions; video art and sound art, as in the work of Robert Cahen, combine and mix genres of all kinds and senses. MetaSon #5 Skruv Stockholm is an audiovisual soundwalk, based on soundscape recordings in Sweden in the 1970s and 1990s, combined with associative pictures and designs, each in its own rhythms and times. It consists less of the common meaning both share, being more dependent on the fluidity and dynamic of the relationship between the elements. Sound and image create an intermedium, intermodal space neither of which could project alone. From moment to moment, schizophonic montage and idea invert into a fresh, maybe evocative look at the way we perceive, where the audio flow transforms stable pictures into liquid forms, where image follows sound and is treated like sound.

Knut Wiggen (1927–2016) is not a household name in music technology, despite the fact that he developed cutting-edge technology during the 1960s and early 1970s in Stockholm, as leader of both the concert organisation Fylkingen and the Electronic Music Studio (EMS). In the international literature on computer music, this development has only been mentioned in passing, if at all. However, EMS and the general development has been discussed in Scandinavian texts,1 but the links between Knut Wiggen’s technical achievements and his far-reaching ambitions for the music of the future, and how this vision aligned with philosophy and research at the time, have not been the focus. Hartenstein (2011) provides insights into Wiggen’s personal intentions and philosophy, and does not go much into technical detail, Groth (2010) focuses principally on the politics and aesthetic differences and subsequent conflicts at EMS, and although an overview of the EMS technology is provided, it is not always made clear how innovative it was. In Broman (2007), the broader lines of electroacoustic musical development are in focus.

Wiggen combined social and political concerns with technical insight, and his overarching conviction of how a new art was necessary as a counterweight to mute consumerism is unique in computer music. The aim of this article is to describe and explain the coherency of Wiggen’s achievements, his philosophy, his use of current technological advances and research and his development of a new method for composing the music of the future. In order to support this focus, mainly primary sources have been used,2 however, the literature mentioned above has been consulted due to its use of interview data and other personal communication not commonly available. A degree of duplication of information has been required for the narrative not to suffer.

The article will show that Wiggen was a visionary pioneer who has a natural place among such computer music luminaries as Max Mathews, Jean-Claude Risset, John Chowning, Iannis Xenakis, Peter Zinovieff and others from the same generation.

Urban Portrait: Thessaloniki is a sonic art installation by this author, presented at the Lansdown Centre for Electronic Arts of Middlesex University, London, in May 2008. This article constitutes an exploration of sonic representation of the experience of place as a central element of the work. The term psychosonography is introduced to encapsulate the described method and references to its supporting concepts. Urban Portrait is about representation of experienced locality, as well as the emergence of relationships among a collection of such localities through their sonic embodiments. Ultimately, it takes the form of the sonic equivalent of a psychogeographical map, to be navigated by aural means.

It is rare to see music and technology being used in combination in therapy and special education. This article is an account of work in a special school as part of a festival of popular music. The style of the music was dance/rave. This was made accessible using a specialised range of MIDI devices to enable students with physical and learning disabilities to participate. There are many benefits to be derived from studying popular music. In special education this can help with physical coordination and social skills. Most important, young people with special needs are given access to youth cultures from which, traditionally, they have tended to be excluded.

This paper describes the ideas and methods that led to the writing of an algorithmic composition NTrope Suite. This piece, for solo recorders and voice, was generated by ‘mixing’ works by different composers from different eras. The idea behind the work was to examine random generation procedures that could maintain stylistic properties typical to the reference works. The interesting property of this method is that it implements a sort of ‘statistical learning’, that optimally preserves the properties of the reference pieces and also properly ‘generalises’ them so as to create a new valid work. The musical result is very coherent, maintaining both stylistic resemblance to the reference music and exhibiting some surprising originality as well. Theoretically, the resulting piece is closest to the reference works in terms of mutual entropy. The algorithm and its theoretical significance are discussed in the paper.

This article introduces the recent sound works of Heidi Fast, a Finnish voice and performance artist. Fast’s creative practice operates between art and philosophy, and articulates several ‘zones of becoming’: what Fast designates as ‘the clinical’, ‘the virtual’ and ‘vocal thought-material’. Using a methodology of routing, the article shows how these zones emerge as aesthetic, ethical and political concerns within Fast’s work.

Since 2005, Fast’s sound works have variously taken shape as miniature concerts, social sculptures, imaginary soundscapes and environmental music performances. Drawing upon the writings of theorists who have helped shape her practice, this article argues that Fast uses sound and voice to propose an ‘actualising philosophy’. This philosophy actualises virtualities (unrealised potentials), affecting transformative shifts through tiny mutations in perceptions and behaviours.

over the past century, an art form has emerged between the realms of visual art and music. created by composers and sculptors, ‘sound art’ challenges fundamental divisions between these two sister arts and may be found in museums, festivals or public sites. works of sound art play on the fringes of our often-unconscious aural experience of a world dominated by the visual. this work addresses our ears in surprising ways: it is not strictly music, or noise, or speech, or any sound found in nature, but often includes, combines and transforms elements of all of these. sound art sculpts sound in space and time, reacts to environments and reshapes them, and frames ambient ‘found sound’, altering our concepts of space, time, music and noise.