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Ina Artistic Testbed Yann Geslin, Ina-GRM
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Ina Artistic Testbed Yann Geslin, Ina-GRM. Ina context Ina : musical production since the fifties –1600 works created since 1948 Music is mainly based.

Mar 27, 2015

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Page 1: Ina Artistic Testbed Yann Geslin, Ina-GRM. Ina context Ina : musical production since the fifties –1600 works created since 1948 Music is mainly based.

Ina Artistic Testbed

Yann Geslin, Ina-GRM

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• Ina : musical production since the fifties– 1600 works created since 1948

• Music is mainly based on the Acousmatic paradigm:– The music is totally realized by the composer (with the

exception of mix music)– The music is usually performed on a loudspeakers orchestra– Acousmatic music can be devoted to other / future media like

radio, CD, video shows, etc.

• With the time, problems arise, i.e. the insufficient audio quality of old pieces.– New rendering are desirable -> sources need to be preserved

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Recorded sounds& transformations

LoudspeakersConcert

Mixing session

Synthesis & Soundtransformations algorithms

Liveelectronic

Performance

InstrumentsReal Time

ScoreFixed media

Acousmatic (since 1948) Live electronic (70ties)

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Master and related sources

concertsPublications

(cd, web)

Sketches materials

documentation

Original final workNew versions

and declensions

What is usually archived

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Ina context

Composer

Producer

Musicologist

Publisher

and who are the potential users

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concertsPublications

(cd, web)

Sketches materials

documentation

Original final workNew versions

and declensions

What we also have to take into account

Master and related sources

performing

conditions

NewTechnologi

es

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Ina context

Composer

Producer

Musicologist

Publisher

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• GOAL of preservation in this context:– To reperform the Work:

• Preserving the final audio files (as usual)• Documenting the performance conditions (nowadays

implicit)

– To make possible adaptations / revisions of the works:

• Preserving the mixing session(s), not only the final audio result

– All related audio and session files– The Core mixing software (context, etc.)– Documentation of the creative process, intentions, etc.

• Managing & preserving the rights

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Ina testbed: data sets & types• Three levels of data sets:

– Final works and declensions (i.e. Multitrack, stereo and CD rendering)

– Final mixing session(s) and all related files (audio, treatments)

– Sketches, intermediate steps (if provide by the composer)

+ all related documentation (programs, pictures, patches, etc.)

• Data types:• Audio files (standard) and mixing session files (proprietary type)• Sound transformations tools, real-time processes• Biography, pictures, interviews, movies, other documentations• Production / Performances conditions

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Preservation issue

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Hans Tutschku’s Distance Liquide

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Ina testbed: Distance Liquide files

About 1000 Files

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Ina testbed: Acousmatic terminology

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Modelisation of Distance Liquide

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• Provenance tracking (through Cyclops new version)

• Attribution of right properties:– Composer, performer, commissioner

• Test protocole:– Change in related rights attribution

– Change in rights duration in Europe• 50 to 70 years• No synchronization

• See Metaware demo

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Ina testbed: some preservation key aspects

• Preservation of the final work and declension (see d4102 p. 125)

-> including changes in rights attribution-> 2 selected cases:

-> new duration of rights attribution -> new definition of performers rights

• Preservation of the final mixing session-> Scenario 1: changes in hardware-software environment

-> Selected case: the core mixing software is not any more available -> Strategy 1: migrating files to another available mixing software

• Preservation of the performances condition-> Scenario 2: changes in environment

-> Selected case: the loud speaker orchestra is not any more available -> Strategy 2: emulating the concert feeling through virtual spatialisation

(ambisonic)

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• Subtestbed 2 : preservation of the final mixing session (see d4102 p. 125)

– Strategy 1: migrating files to another mixing software• Exporting data on OMF intermediate files• Running a new mixing software compatible with OMF features• Comparing to original work - evaluating differences• If correct then documenting & creating new Repinfo, etc.

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Original audio & mixing

session files

mixing software

Audiorendering (s)

L0

Ina testbed: scenario 1(change in hardware-software)

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Original audio & mixing

session files

mixing software

New mixing software

new audio fileconstruction

Audiorendering (s)

Strategy 1:OMF files

export.

new mixing session file

Newrendering(s)

Strategy 2:audio tracks

files export.

New mixing software

Rendering

new mixingconstruction

New mixing software

Rendering(s)Strategy 3:session analysis

L0

L1

Ina testbed: scenario 1(change in hardware-software)

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Ina testbed: scenario 1(change in hardware-software)

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• This is the human solution:

– Exporting data on OMF intermediate files– Running a new mixing software compatible with OMF features– Comparing to original work - evaluating differences– If correct then documenting & creating new Repinfo, etc.

• Tested on Daniel Teruggi “Spaces of Mind”

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Ina testbed: scenario 1(Musticaspar steps)

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STEPS

Collect DATA for the WORK

For each COMPONENT of the WORK {

Search the REGISTRY for existing CPID using features

Chose best compliant existing RepInfo CPID

If no one CPID is found {

Register / Log into RepInfo toolbox portal

Use Analysis tools to produce RepInfo for the COMPONENT

}

Else {

Retain and use CPID

}

Analyze DATA object and produce AP and PDI objects

Construct AIP

Store AIP

Notify the PRESERVATION ORCHESTRATION MANAGER (POM) for meta-data added

Store DATA into DATA STORE

}

Analyze WORK and produce AP and PDI objects

Construct AIP of the WORK

Store AIP of the WORK

Notify the PRESERVATION ORCHESTRATION MANAGER (POM) for meta-data added

Step0: Having ingested a WORK and components

Step1: Notification of loss of availability of the core mixing environment (i.e. Digital Performer v5)

Step2: Human solution: files migration

Step3: Evaluation of the work properties

Step4: Ingest of the new version of the data set

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• Setting the MustiCaspar clone server• Methodology for extraction of Representation

Information• Acousmatic terminology (CIDOC-CRM based)• Scenario definition and implementation• Documenting the performance conditions• 5 fully collected piece: Tutschku, Teruggi, Risset,

Zanési, Adkins

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Next developments

• Short and middle term:– New data set:

• Trevor Wishard: one selected piece (Michael Gatt)• Hugues Dufourt: Saturne for orchestra & synthesizers (Yann Geslin)

• Collecting 3-4 more pieces, exploring particular cases or coming from external institutions (Smalley, Amy, Geslin, Racot, Truax)

– Best practice guideline• For all acousmatic production studios and archive holders (soon)

– External secured access to our Musticaspar clone server• For demo• For future hosting

• Long term:– One research project (funded by National Research Agency)

• GAMELAN - with Ircam and UTC (CASPAR Partners), and EMI Music

– Bridge beetwen the Acousmaline Ina’s repository and Musticaspar

– Open the server to other community members’ most important works

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Preserving the sources (mixing session) permit us to:

- migrate the mixing session if necessary- produce new rendering- offer sources access to musicologists

Thus allowing acousmatic works to be moreaccessibleto future generations

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Cyclops demo

Serveur CYCLOPS (Utc) sur Firefox - macNouvelle version (avec Ina et Ircam) Contient (si edit) la visualisation de Provenance & context

http://www.utc_tx.lexiktrac.com/ : cyclops, caspar

http://www.utc.fr/caspar/cyclops_v1_INA/ sur Firefox – mac – contient Distance, Spaces, Sud, Aube, 60’

Autre version récente Leeds – contient aussi Ingest, Gap manager, etc. sous Firefox

http://kia1.leeds.ac.uk:9595/ICSRiMArchivalSystem-v1/ (pas d’accès de l’Ina)

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Summary

• Artistic production context at Ina– Acousmatic production since the Fifties– What is acousmatic music made of ?– Preservation goals

• The preservation issue– Representation Information– Key points & scenarii– Rights management

• Work done and future work– MustiCASPAR clone server– Future work