This piece of audio file is an outcome of an experiment to explore the terrain of the internet through an impulse response. For this piece the result of the network diagnostic command “traceroute”, with its formal similarity to impulse response data, was obtained from accessing the whereveryoufindit.net website from Berlin Neukölln. It was then translated into impulse response data and used to make an audio convolution. Convolution overlays the characteristics of the particular space it originated from, onto another signal of sound, giving the impression as if this signal was reproduced within the original space and therefore allows for conclusions to be drawn about said space. This experiment offers a glimpse into the virtual space and may allow a reverse engineering experience, imaginable by the results of a traceroute command.

Cascaded Development is an experiential acoustic exploration of the halls of the Akademie der Künste, Berlin through Plato’s concept of Khôra. Khôra is an ancient Greek word coined by Plato as a term for space, receptacle or site. He proposed that Khôra is a space that holds no characteristics in itself and that cannot permanently contain anything but bodiless, ephemeral, time based media and which reflects the character of the medium passing through. Drawing an analogy between such media and sound, the installation thematizes Khôra as an object of acoustic investigation.

The artist transposes this idea to the AdK’s interconnected rooms on the ground floor and challenges us to understand the space solely through an auditive illumination. Daisuke Ishida uses a process of pink noise, which carries an equal amount of noise power in each octave, and further 16 descending sine wave sweeps to excite the space via a wave field synthesis system in a linear set up, opposed to a traditional circular one. This will reveal the resonance frequencies of the rooms which then will be foregrounded to make them experienceable. These collected sounds and their reflections will disclose the unapparent acoustic properties of the rooms.

Daisuke Ishida explores space by forming it through sound. He tries to create architecture by acoustically defining its actual spatial boundaries. “Acoustic Octahedral Geometry” facilitates a tangible experience of such a space.

The room’s borders are sculpted by twelve thin sound lines, produced by super directional sound. This takes advantage of the extreme focus of super directional speakers and the reflective properties of its output sound. The space can be observed through sound propagation and variations of sound patterns over time. Therefrom emerges an invisible geometric architecture – the beams and their reflections form an octahedral room in space. Within this, the weight of the sound field energy is shifted via sound patterns to enable an experience of this space’s dynamics.

The spectator may visualize the eight faced shape and is able to interact with the geometry by crossing one or more sound beams and therefore reflecting it with his/her body. These interferences form new invisible lines and change the overall shape temporarily.

Die Akustische Erforschung des Raumes Nr.1 is an installation which allows the spectator to experience the audible character of a room by means of a modified acoustic measurement method. In order to modify the procedure of the Impulse Response, the two most relevant aspects of it, impulse-like sound and the swept sine wave, were appointed and combined. As a result the short sound of the sine wave is triggered by a rhythm with the repeating sweep line as a guidance of the frequency value. The room is excited with a rotating source emitting short sine waves. Each variously directed sine wave consists of only one frequency, so that the specific response spectrum of the room can be heard. In some case of sound parameter settings, the sound may be perceived as a pattern, each of the sounds will be difficult to distinguish from one another. Depending on the number of sine cycles and triggering rate, a sound may be triggered before the last sound ends. They may overlap on the time axis. This installation is a universal medium to reveal the acoustic character of a room and is meant to allow exploration of multiple spaces.