THE LAST ECHO

Ideal gallery footprint

60–120 m² for the Full configuration.

Minimum workable footprint

20–40 m² for the Chamber configuration.

Ceiling height

3 m minimum; 4–5 m preferred for the immersive sound environment.

Visitor capacity

Approximately 8–12 visitors in Chamber and 15–30 visitors in Full.

Average experience

8–15 minutes.

Preferred route

Threshold / Hold a village → visual series → field-recording archive → Hold the Drone → final work.

Environmental conditions

Low ambient light, controlled acoustics, minimal external noise, 18–24°C and 40–55% relative humidity where original fine-art prints are displayed.

The preferred Full version evokes the acoustic and emotional atmosphere of Epirotic gorges, stone paths, rivers and mountain settlements. It is not a literal reconstruction, but a restrained museum environment that places the listener inside a passage of sound, shadow and material memory.

Passage dimensions

Approximately 2.5–4 m wide and 4–8 m long.

Scenic structure

Two parallel matte scenic walls, black theatrical scrim, mesh curtains or freestanding acoustic panels forming a semi-enclosed passage.

Surface language

Dark, non-reflective materials; optional stone-textured elements or one raw stone placed as a sculptural anchor.

Seating

One central circular bench or low platform, minimum 45 cm seat height.

Acoustic treatment

Absorptive material concealed behind scrim or scenic panels where the room has excessive reverberation.

Lighting

Very low-level warm light, 2700–3000 K, directed toward material surfaces rather than visitors.

Safety

Clear 90 cm accessible route, fire-retardant fabrics, stable scenic supports and visible emergency egress.

Ideal system

Eight discrete full-range active loudspeakers plus one optional calibrated subwoofer.

Recommended system

Four-channel surround with speakers positioned front-left, front-right, rear-left and rear-right.

Chamber minimum

Stereo room playback or one active speaker plus a separate headphone listening station.

Speaker height

Between ear level and 2.2 m, depending on the room and speaker dispersion.

Listening level

Average 60–72 dB SPL; short peaks not exceeding approximately 78 dB SPL.

Playback computer

Dedicated Mac mini, laptop or museum media server running QLab, Ableton Live or equivalent multichannel software.

Audio interface

Minimum two outputs for Chamber; four to eight balanced outputs for Full.

Master format

WAV, 24-bit, 48 kHz. Uploaded M4A recordings are retained as archival/source files and converted to exhibition masters.

Operation

Continuous programmed loop with automatic daily start, shutdown and documented restart procedure.

Current source recordings

• The last echo- acheron river.m4a — Acheron River
• The last echo- Birds(1).m4a — Birds
• The last echo- Fireplace.m4a — Fireplace
• The last echo- Stone Paths.m4a — Stone Paths
• The last echo- village bells.m4a — Village Bells
• The last echo- Village Café.m4a — Village Café
• The last echo- Wind(1).m4a — Wind
• The last echo- Wooden Door(1).m4a — Wooden Door

Electrical standard

230 V / 50 Hz.

Socket type

Grounded European Schuko outlets.

Minimum outlets

Two grounded outlets for Chamber; six to eight for Full.

Typical allocation

Playback computer, audio interface, active loudspeakers or amplifiers, touchscreen/listening station, projector or display, and one spare technical outlet.

Power distribution

Surge-protected power strips and, where possible, separate grounded circuits for audio and projection equipment.

Cabling

Balanced XLR or TRS audio cabling, black power extensions, cable ramps or museum-approved floor covers, concealed routing and secure strain relief.

Network

Not required for normal daily playback. Wired access is useful during installation and diagnostics.

Daily control

One labelled master start-up sequence and one shutdown sequence available to gallery staff.

Works

Six archival digital paintings.

Preferred display size

Up to 180 × 180 cm each, depending on the final artwork proportions.

Minimum display size

Approximately 100 × 100 cm or equivalent proportional scale.

Print method

Fine-art pigment or giclée printing on museum-grade matte paper, preferably Hahnemühle Photo Rag or equivalent.

Mounting

Frameless aluminium composite mounting, museum tray frame or minimal matte-black frame.

Glazing

Non-reflective museum acrylic where glazing is required.

Hanging system

Secure French cleat or institution-approved concealed hanging hardware.

Centre line

145–150 cm from finished floor level.

Spacing

10–25 cm between works, adapted to scale and wall length.

Artwork lighting

Individual LED track spots, CRI 90+, 3000–3500 K, carefully focused to avoid glare and reflections.

Furniture

One museum plinth, desk or table approximately 100–120 cm wide.

Interface

Tablet or touchscreen with local offline playback and a play-only interface.

Headphones

Professional closed-back headphones with replaceable hygiene covers.

Optional amplifier

Compact headphone amplifier where the tablet output is insufficient.

Metadata per track

Title, location, duration and one short contextual description.

Public access

Playback only; no download button or direct access to source files.

Accessibility

Screen height and controls reachable from seated and standing positions; headphones available at an accessible height.

Film

The Last Echo exhibition trailer, H.264 MP4 with embedded AAC audio.

Screen option

43–55 inch professional display with local USB or media-player playback.

Projection option

Short-throw or standard projector, minimum 6,000 ANSI lumens, WUXGA or 4K.

Projection width

Approximately 4–6 m where the film forms part of the immersive room.

Surface

Matte wall, projection screen or translucent theatrical scrim.

Playback logic

Muted loop where the spatial soundtrack is already active, or headphone playback at a separate film station.

Accessibility

English captions or transcript available for all audiovisual presentation.

Main wall title
THE LAST ECHO
Visualising the Epirotic Lament

Participation wall text
Hold the Drone
You are not asked to sing.
Hold a note, any note, for as long as one breath lasts.
You are the ground on which the lament finds its voice again.

Consent text
Press “Contribute” to add your breath anonymously to the cumulative drone.
Press “Only me” to hear it now, without saving.

Typeface approach

Elegant serif body type with restrained Swiss editorial sans-serif for headings, captions and technical labels.

Title size

150–220 mm cap height depending on wall scale.

Section heading size

35–60 mm cap height.

Body wall text size

24–32 pt for primary text at 1.3–1.45 line spacing.

Artwork labels

18–22 pt title line, 15–18 pt metadata, 14–16 pt interpretive note.

Technical / caption text

12–14 pt where needed.

Label material

Direct wall vinyl or matte museum card, off-white to light grey.

Mounting height

Labels positioned approximately 110–125 cm from floor to the centre of the text block, adapted for accessibility.

Basic installation

Half day to one full day for the Chamber version.

Recommended installation

Two to three days for a reduced Full version.

Immersive canyon version

Three to five days, including scenic build, speaker installation, sound calibration, lighting focus, labels and testing.

De-installation

Half day to one day for Chamber; one to two days for Full.

Required installation team

Exhibition coordinator or registrar, art handler, AV technician and electrician. A scenic technician is required for the canyon configuration.

Artist involvement

On-site presence is preferred for final spatial calibration, artwork sequencing and curatorial approval. Remote supervision is possible for a previously approved standard configuration.

Gallery attendant

At least one invigilator during opening hours to supervise visitor flow, headphones, touchscreen and equipment status.

Daily check

Confirm computer and audio interface status, all speaker channels, volume level, display playback, headphones, tablet charge and clear visitor routes.

Accessible route

Minimum clear width of 90 cm throughout the installation.

Seating

At least one stable seat or bench within or adjacent to the listening environment.

Alternative listening

Headphone station available for visitors who prefer lower sound levels.

Captions and text

Captioned film, printed transcript and readable labels at accessible height.

Fire safety

All fabrics and scenic materials certified flame-retardant according to local regulations.

Cable safety

No exposed trip hazards; all routes concealed, ramped or secured to institutional standards.

Insurance

Venue to provide wall-to-wall exhibition insurance and confirm declared values before shipment or production.

Hold the Drone is a zero-build participatory component: no construction, no custom fabrication, operable with existing field-recording equipment within the sound zone. Visitor contributions are captured with explicit opt-in consent and anonymised in line with GDPR. The cumulative drone is scalable across venues, materialising the dossier’s central thesis, the transition from communicative to cultural memory, as a live, audience-built archive.

First step

The Assignment / Hold a village is the entry gesture of Hold the Drone. It is not a separate work; it gives the participant a named village before the breath is given.

Visitor action

One sustained breath, held as a single note for the duration of one exhalation.

Interaction point

One touchscreen kiosk, tablet pedestal or 22–27 inch monitor with a simple interface displaying the two options “Only me” and “Contribute”.

Microphone

One cardioid microphone or low-profile gooseneck condenser with pop protection, mounted at standing mouth height and routed to the playback computer or audio interface.

Capture format

Mono WAV, 24-bit, 48 kHz for temporary capture and layering; no personal identifiers stored.

Signal path

Microphone → audio interface input → capture/loop software → realtime or near-realtime routing to the drone layer within the multichannel sound environment.

Consent logic

Explicit opt-in only. “Contribute” stores the breath anonymously for the cumulative drone. “Only me” plays it locally in the moment without retention. Chamber records nothing.

Data handling

No names, no email addresses and no voice-linked profiles collected. Venue to display one concise GDPR notice adjacent to the interaction point.

Power and connectivity

One additional grounded Schuko outlet for the kiosk or tablet charging point. Network access is optional and only required if a venue wishes to synchronise a cross-city cumulative counter.

Staffing

No performer is required. One invigilator or mediator in the room is sufficient to assist visitors, reset the interface if needed and answer basic participation questions.

Shareable hook

“One breath.”

The following image belongs to curator and technical materials only and should not be shown to visitors in advance.