EP 3016413 A1 20160504 - A system and a method for detecting acoustic features of a loudspeaker system in a limited environment
Title (en)
A system and a method for detecting acoustic features of a loudspeaker system in a limited environment
Title (de)
System und Verfahren zur Erkennung akustischer Merkmale eines Lautsprechersystems in einer begrenzten Umgebung
Title (fr)
Système et procédé pour détecter des caractéristiques acoustiques d'un système de haut-parleurs dans un environnement limité
Publication
Application
Priority
EP 14461583 A 20141027
Abstract (en)
A system for detecting acoustic features of a loudspeaker system in a limited environment, the system comprising: a matrix microphone (110) comprising a plurality of microphones (112) configured to detect sound waves approaching from various directions; a sound generator (411) configured to consecutively generate sound impulses in a plurality of frequency bands to be played by the speakers (122) of the loudspeaker system, each generated sound impulse having an impulse duration; a sound recorder (412) configured to register sound received by the microphones (112) of the matrix microphone in a recording storage (413), wherein the sound is registered in response to each generated sound impulse for a period longer than the sound impulse, such as to register direct and reflected sound impulses; and a model generator (414) configured to analyze the recorded sound from the recording storage (413) and to generate a model of the environment including the position and properties of walls (125) and other objects (124) within the environment.
IPC 8 full level
H04S 7/00 (2006.01); E04B 1/99 (2006.01); G01H 7/00 (2006.01); H04R 29/00 (2006.01)
CPC (source: EP)
H04S 7/305 (2013.01); H04R 29/007 (2013.01); H04S 7/301 (2013.01)
Citation (applicant)
US 7804972 B2 20100928 - MELANSON JOHN L [US]
Citation (search report)
- [XI] FABIO ANTONACCI ET AL: "Inference of Room Geometry From Acoustic Impulse Responses", IEEE TRANSACTIONS ON AUDIO, SPEECH AND LANGUAGE PROCESSING, IEEE SERVICE CENTER, NEW YORK, NY, USA, vol. 20, no. 10, 1 December 2012 (2012-12-01), pages 2683 - 2695, XP011467306, ISSN: 1558-7916, DOI: 10.1109/TASL.2012.2210877
- [X] REMAGGI LUCA ET AL: "Room boundary estimation from acoustic room impulse responses", 2014 SENSOR SIGNAL PROCESSING FOR DEFENCE (SSPD), IEEE, 8 September 2014 (2014-09-08), pages 1 - 5, XP032672346, DOI: 10.1109/SSPD.2014.6943328
- [A] "MEASURING IMPULSE RESPONSES USING DIRAC", ACOUSTIC ENGINEERING, TN001, 1 August 2007 (2007-08-01), XP055183619, Retrieved from the Internet <URL:http://www.acoustics-engineering.com/files/TN001.pdf> [retrieved on 20150416]
- [A] PAOLO ANNIBALE ET AL: "TDOA-Based Speed of Sound Estimation for Air Temperature and Room Geometry Inference", IEEE TRANSACTIONS ON AUDIO, SPEECH AND LANGUAGE PROCESSING, vol. 21, no. 2, 1 February 2013 (2013-02-01), pages 234 - 246, XP055183621, ISSN: 1558-7916, DOI: 10.1109/TASL.2012.2217130
- [A] I. DOKMANIC ET AL: "Acoustic echoes reveal room shape", PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES, vol. 110, no. 30, 23 July 2013 (2013-07-23), pages 12186 - 12191, XP055106739, ISSN: 0027-8424, DOI: 10.1073/pnas.1221464110
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 14461583 A 20141027