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Master tapes and half speed mastered vinyl records have sound qualities

 that equivalent digital music files still don't match


During 7 years analyzing, defining audio differences between high end analog and digital materials,

Guillaume Chalaron has developed a merging technique in audio processing dedicated to

shiftback missing features


This new improvement over the musical experience is based on the fact that it is possible

to return digital audio tracks to a significant copy of an analog recording

by rescaling the dynamic range, spatial width, bass response, details and presence


On What Basis


6 crucial features

have been identified through long research focused on sound delivered by 40 high end LPs converted on DxD to define the design of the RM


From digital audio contents, data is recalculated by a same digital protocol using few softwares


The sound calibration of the RM is able to converge on sound features given by HD vinyls

6 composantes clés

identifiées à partir des résultats sonores de plus

de 40 vinyles référents capturés en DxD vont

définir le fonctionnement du RM


Le traitement des données numériques suit un protocole identique utilisant plusieurs logiciels


La calibration sonore RM converge vers les réponses acoustiques de vinyles référents

The Key Points


Widescreen Dynamics

The dynamic range is newly scaled to fit great 45s vinyl records

Musically p to f now will be pp to ff

RM can fill or empty the room and get you at an orchestral performance

reversing the effect of the loudness war

dynamic comparison cd vs lp


Flexible Soundstage

Full sound radiates beyond the area of the speakers

Details are alive and focused the way you can

hear it on half speed mastered vinyl records

original hi res audio format


Advanced Stereo Imaging

Left, center and right locations are redefined

A central phantom image is generated to give

more layers between the speakers

unabling a continuous and realistic panoramic music

au delà de la stéréo


Sound Layers with 3D Transparency

It is usually said that digital is 2D and analog 3D

3D width and separation are the

most complex achievement of the RM's structure

Each instrument becomes...visible



Maximum Transient Fluidity

RM is reaching analog fluidity thru complex

digital conversions up to DSD2048 and special tools

to reduce ringing effects

does vinyl really sound better


Intelligent Balance

Human perception of frequencies and level changes is not linear

The EQ setting and dynamic range is elaborated

after psycho acoustic tests, master tape experience and live sound

Robinson Dadson curves


  • over 130 digital operations by computing
  • SAME workflow for all tracks

EQ Setting, Imaging and Focusing between RM and Analog Recording


due to the specific analog equipment, vinyl care, A/D converter and mastering work







Infinite "Resolution"?


02. VINYL 45rpm

RM Ult oct2017


03. DSD1024

RM Hyb june2017


RM Full mar2016

04. VINYL 33rpm

05. DSD512


RM Edge mar2015

06. 32bit/352kHz (DxD)

07. DSD256

08. DSD128

RM Org oct2014


09. 24bit/192kHz DIGITAL RECORDING

10. DSD64  (SACD)

11. 24bit/96kHz

12. CD 16bit/44kHz

13. Flac

14. Ogg

15. AAC

16. mp3


Fichier audio Wave [42.0 MB]


Fichier audio Wave [82.2 MB]

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