b08 b54c 44 diapo woloszyn en

Philippe WoloszynChargé de recherche CNRS

Université de Haute Bretagne Rennes 2,

ESO-Lab. CNRS UMR 6590

philippe.woloszyn@univ-rennes2.fr

Gaëtan Bourdin

Directeur

LBA (Les Badauds Associés) organization

gaetan.bourdin@paysages-enchantier.com

TheThe HyperscapeHyperscape projectproject [2][2]

Participative Participative GameGame InformationalInformational ConstructionConstruction

Besançon 2008Besançon 2008LBA Les Badauds AssociésLBA Les Badauds Associés

FromFrom AmbientsAmbients ……

Sensation SpatialPerception

Signal

Transformation

HUMAN

PHYSICAL

ENVIRONMENT

BUILDING

SURROUNDING

……to a Territorial Information to a Territorial Information SystemSystem ......

Spatial

Collective construction

Spatial practicesAppropriation processes

SocialIdeal

Players Territory Gamepad

……ThroughThrough HPU Territorial HPU Territorial GameGame……

…Towards a Multimedia Spatial Mediation…Towards a Multimedia Spatial Mediation

Malakoff TerritorialMalakoff Territorial GamepadGamepad

What is Malakoff ?

What could be Malakoff ?What could be Malakoff ?

What will be Malakoff ?

Eff

ect

Ca

su

al

Re

alit

y

exp

ressio

n

Te

leolo

gic

al

assu

mp

tio

ns

Territory GamepadPlayers

Artefact

Artefact

[Description]

[Representation]

[Composition]

Co

gn

itiv

e

Dis

tance

I

nfo

rma

tio

na

lE

va

lua

tio

n

ScapeScape InterrogationInterrogation

GameGame InformationalInformational EvaluationEvaluation

[Shannon]

InformationalInformational ImpedanceImpedance AdaptationAdaptation

[Moles (1988)]

Apprenticeship process = Adaptative function which asymptote reveals perfect fitting

between transmitter and receiver directories.

Cost of communicative transactions between speakers and

listeners = Transmitter-receiver directories fitting quantification

� Entropy calculation

Correlation Dimension

k

xp

D Xx

clog

)²(log

lim∑∈

=

OrderOrder SpectrumSpectrum

[Mo

les (

19

88

)]

.)(

1log)()(log)()()(

xpxpxpxpXIXH

XxXx

∑∑∈∈

=−==

k

xpxp

DXx

Slog

)(

1log)(∑

∈

=

Information Dimension

Entropy

ksCfx loglog −=

ZipfZipf LawLaw

[Ma

nd

elb

rot

(19

65

)]

Informational impedance

adaptation level between

real and imagined

soundscapes

Expression => Sound

Language => Soundscape

Word => Source

Grammar => Source

Characterization

Synthax => Source

Organization

ANALOGY

Application : Malakoff Application : Malakoff TerritoryTerritory

Application : Territorial Application : Territorial SoundscapeSoundscape

Real Imagined

Description

Headphone listening

Listening tests :

Soundscape description

6.2 ambisonic system restitution

Binaural recording B-Format recording

SoundscapeSoundscape Captation Captation andand RestitutionRestitution

Soundscape Description

SoundscapeRepresentation

SoundscapeRepresentation

Soundscape Composition

Territory GamepadPlayers

Cogn

itiv

e

Dis

tance

Evalu

ation

SoundscapeSoundscape InterrogationInterrogation

0

1

2

3

4

5

6

0 5 10 15 20

0

1

2

3

4

5

6

0 5 10 15 20

Mechanical sound sources

Citation Order

Fre

qu

en

cy

Ambient sources

Event sources

Sound sources items Soundscape rank/order analysis

Items Typological Distribution

Foreground Background

Scape Timeline

SoundscapeSoundscape Description Description andand AnalysisAnalysis

Rank/order law (global)

[Lé

ob

on

(19

95

)]

y = -0,0738x + 2,8402

R2 = 0,0984

0

1

2

3

4

5

6

0 5 10 15 20

y = -0,0738x + 2,8402

R2 = 0,0984

0

1

2

3

4

5

6

0 5 10 15 20

A A SoundscapeSoundscape Territorial Territorial ReRe--compositioncomposition

Real Imagined

Description Representation

Sound Athmosphere re-composition

0

1

2

3

4

5

6

7

0 5 10 15 20

Fre

qu

en

cy

Composition Order

Mechanical sources

Ambient sources

Foreground

Background

Event sourcesScape Timeline

Human

Nature

Scape sources ordering

diffusion

The more complex the Soundscape

� the more accurate the

Information dimensioning

Real Imagined

Cognitive distance

Description Re-composition

Comparative Rank/Order Laws

y = -0,0738x + 2,8402

R2 = 0,0984

0

1

2

3

4

5

6

0 5 10 15 20

y = -0,0738x + 2,8402

R2 = 0,0984

0

1

2

3

4

5

6

0 5 10 15 20

Ds = 0.93y = -0,3624x + 5,88

R2 = 0,6834

0

1

2

3

4

5

6

0 5 10 15 20

y = -0,3624x + 5,88

R2 = 0,6834

0

1

2

3

4

5

6

0 5 10 15 20

Ds = 0.64

y = -0,3249x + 5,3364

R2 = 0,5415 Ds = 0.68

y = 0,0769x + 1,5385

R2 = 0,0313Ds = 1.07

ConclusionsConclusions

Application to Landscape Characterization

Define the notions of sensible sound territory

Part of computer-adapted knowledge and global culture sharing

Sociospatial transcription of the territory representations as an hypermediacollective construction

Ambiorama Soundscape preprocessing [B-Format]

Exploration process evaluation / modelling

Sample dimensioning / formating

Ambients ground classification

Structural ambients Categorization

Global soundscape & local source type behaviours

Global Soundscape Characterization through Information Dimensioning