François Becker


Adepte et pratiquant de l'expérimentation éclairée, motivée par un mode de pensée divergent, avec un intérêt non dissimulé à joindre la Physique aux techniques numériques pour faire reculer la frontière technologique et artistique.



AVAR Conference of the AES in Los Angeles, Sept, 2016, AVAR Conference

I've made the following technology announcements during a workshop of the 2016 Sept AVAR conference in Los Angeles:



140th AES Conference in Paris, June 4-7, 2016

I have presented two papers and their respective posters at the Audio Engineering Society conference in Paris.


Stereo Panning Law Remastering Algorithm Based on Spatial Analysis

Presented in Sunday's paper session P7 and in Monday's poster session P19.

Abstract
Changing the panning law of a stereo mixture is often impossible when the original multitrack session cannot be retrieved or used, or when the mixing desk uses a fixed panning law. Yet such a modification would be of interest during tape mastering sessions, among other applications. We present a frequency-based algorithm that computes the panorama power ratio from stereo signals and changes the panning law without altering the original panorama.

Paper available on the AES website.

Non-Linear Extraction of a Common Signal for Upmixing Stereo Sources

Presented in Sunday's paper session P7 and in Monday's poster session P19.

Abstract
In the context of a two- to three-channel upmix, center channel derivations fall within the field of common signal extraction methods. In this paper we explore the pertinence of the performance criteria that can be obtained from a probabilistic approach to source extraction; we propose a new, non-linear method to extract a common signal from two sources that makes the implementation choice of deeper extraction with a criteria of information preservation; and we provide the results of preliminary listening tests made with real-world audio materials.

Paper available on the AES website.