EP 3613043 A4 20201223 - AMBIENCE GENERATION FOR SPATIAL AUDIO MIXING FEATURING USE OF ORIGINAL AND EXTENDED SIGNAL
Title (en)
AMBIENCE GENERATION FOR SPATIAL AUDIO MIXING FEATURING USE OF ORIGINAL AND EXTENDED SIGNAL
Title (de)
AMBIENTEERZEUGUNG FÜR RÄUMLICHE AUDIOMISCHUNG MIT VERWENDUNG EINES ORIGINAL- UND ERWEITERTEN SIGNALS
Title (fr)
GÉNÉRATION D'AMBIANCE POUR MÉLANGE AUDIO SPATIAL COMPRENANT L'UTILISATION DE SIGNAL ORIGINAL ET ÉTENDU
Publication
Application
Priority
- GB 201706289 A 20170420
- FI 2018050273 W 20180419
Abstract (en)
[origin: GB2561595A] An apparatus for generating at least one audio signal associated with a sound scene is configured to receive at least one audio signal and analyse 101 the audio signal(s) to determine at least one attribute parameter such as peakiness, impulsiveness and voice activity. At least one control signal is determined based on the at least one attribute and is then used to generate a spatially extended audio signal from the at least one audio signal. The initial audio signal(s) and the spatially extended audio signal(s) are then mixed 121 in a proportion based on the control signal, to generate at least one audio signal associated with the sound scene where the timbre of the original audio signal is preserved. The spatial extension may comprise applying at least one of: a vector base amplitude panning; a direct binaural panning, a direct assignment to channel output location; synthesized ambisonics; or wavefield synthesis. The technique is particularly suited to synthesis of sound objects containing percussive or impulsive sounds, and speech. The apparatus may be used in virtual reality or computer game applications.
IPC 8 full level
G10L 19/008 (2013.01); H04S 3/00 (2006.01); H04S 5/00 (2006.01); H04S 7/00 (2006.01)
CPC (source: EP GB)
H04S 7/30 (2013.01 - EP GB); H04S 2400/11 (2013.01 - EP GB); H04S 2420/11 (2013.01 - EP GB); H04S 2420/13 (2013.01 - EP GB)
Citation (search report)
- [A] WO 2012116934 A1 20120907 - FRAUNHOFER GES FORSCHUNG [DE], et al
- [A] PIHLAJAMÄKI TAPANI ET AL: "Synthesis of Spatially Extended Virtual Source with Time-Frequency Decomposition of Mono Signals", JAES, AES, 60 EAST 42ND STREET, ROOM 2520 NEW YORK 10165-2520, USA, vol. 62, no. 7/8, 22 August 2014 (2014-08-22), pages 467 - 484, XP040638925
- [A] MIKKO-VILLE LAITINEN ET AL: "Parametric time-frequency representation of spatial sound in virtual worlds", ACM TRANSACTIONS ON APPLIED PERCEPTION, vol. 9, no. 2, 1 June 2012 (2012-06-01), NEW YORK, NY, US, pages 1 - 20, XP055711132, ISSN: 1544-3558, DOI: 10.1145/2207216.2207219
- See also references of WO 2018193160A1
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
DOCDB simple family (publication)
GB 201706289 D0 20170607; GB 2561595 A 20181024; EP 3613043 A1 20200226; EP 3613043 A4 20201223; WO 2018193160 A1 20181025
DOCDB simple family (application)
GB 201706289 A 20170420; EP 18787482 A 20180419; FI 2018050273 W 20180419