José Augusto Mannis, da Universidade de Campinas e Régis A. Faria, da USP de Ribeirão Preto, irão apresentar um artigo nos paper sessions da Convenção 133rd da AES em São Francisco. O tema é “A Downmix Approach with Acoustic Shadow, Low Frequency Effects and Loudness Control”.
Mannis e Régis são membros da AES há mais de uma década e fazem parte do comitê de organização do Congresso da AES Brasil Expo.
Confira os detalhes do paper, em inglês:
A Downmix Approach with Acoustic Shadow, Low Frequency Effects and Loudness Control
Regis Rossi A. Faria and José Augusto Mannis
Conventional algorithms for converting 5.1 sound fields into 2.0 have systematically suppressed the low frequency information and neglected spatial auditory effects produced by the real position of the loudspeakers in 3/2/1 arrangements. We designed a downmix variation in which the listener’s head acoustic shadow and the LFE information are considered in the conversion in order to investigate how the use of such models can contribute to improve the surround experience in two-channel modes and to customize the downmix conversion, so to achieve the particular balance required by individual surround programs. A test implementation, with integrated loudness control, was carried out. Preliminary tests show the potential benefits in using this approach and point to the critical parameters involved in the downmixing task.
AES San Francisco 2012
Paper Session P17
P17 – Spatial Audio Processing
Monday, October 29, 9:00 am — 1:00 pm