Title:
SYSTEM AND METHOD FOR ENCODING AUDIO DATA
Document Type and Number:
WIPO Patent Application WO/2022/223540
Kind Code:
A1
Abstract:
The present invention concerns a system comprising an audio server for communicating audio data of an audio file via a network, and a database storing said audio file, the audio server comprising: an audio server network interface for communicating with the network; an audio server database interface for communicating with said database; and an audio server processor communicatively coupled with the audio server network interface and the audio server database interface, the audio server processor further configured to cause the audio server to: - segment audio data from said audio file in order to obtain at least one segment, each segment comprising a time interval of said audio data, each segment comprising a plurality of audio samples being grouped in frames, - generate a segment index and a description stream containing said segment index, said segment index comprising the position of said segments within the audio file, - generate a segment stream containing the audio data of one particular segment, at least part of said audio data being encrypted during the generation of the segment stream with an encryption key. The present invention also concerns a method for encoding audio data using a system according to the invention.
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Inventors:
POILON LOÏC (FR)
FROTIER DE BAGNEUX PIERRE (FR)
FROTIER DE BAGNEUX PIERRE (FR)
Application Number:
PCT/EP2022/060284
Publication Date:
October 27, 2022
Filing Date:
April 19, 2022
Export Citation:
Assignee:
XANDRIE SA (FR)
International Classes:
H04N21/854; H04N21/218; H04N21/232; H04N21/233; H04N21/2387; H04N21/2389; H04N21/278; H04N21/4385; H04N21/439; H04N21/6334; H04N21/6377; H04N21/81; H04N21/835; H04N21/845
Foreign References:
| US20130080772A1 | 2013-03-28 | |||
| US20120185608A1 | 2012-07-19 | |||
| US20190340384A1 | 2019-11-07 | |||
| US20180331824A1 | 2018-11-15 |
Other References:
INTERNET STREAMING MEDIA ALLIANCE: "INTERNET STREAMING MEDIA ALLIANCE, Implementation Specification, ISMA Encryption and Authentication, Version 1.1, AREA / Task Force: DRM", INTERNET CITATION, 15 September 2006 (2006-09-15), pages 1 - 64, XP002501545, Retrieved from the Internet [retrieved on 20081022]
PIRON L ET AL: "IMPROVING CONTENT INTEROPERABILITY WITH THE DASH CONTENT PROTECTION EXCHANGE FORMAT STANDARD", IBC 2015 CONFERENCE, 11-15 SEPTEMBER 2015, AMSTERDAM,, 11 September 2015 (2015-09-11), XP030082567
ANONYMOUS: "Study text of ISO/IEC 14496-12:2008/DAM 3 DASH support and RTP reception hint track processing", no. n11921, 1 April 2011 (2011-04-01), XP030018414, Retrieved from the Internet [retrieved on 20110401]
PIRON L ET AL: "IMPROVING CONTENT INTEROPERABILITY WITH THE DASH CONTENT PROTECTION EXCHANGE FORMAT STANDARD", IBC 2015 CONFERENCE, 11-15 SEPTEMBER 2015, AMSTERDAM,, 11 September 2015 (2015-09-11), XP030082567
ANONYMOUS: "Study text of ISO/IEC 14496-12:2008/DAM 3 DASH support and RTP reception hint track processing", no. n11921, 1 April 2011 (2011-04-01), XP030018414, Retrieved from the Internet
Attorney, Agent or Firm:
HEGE, Frédéric (FR)
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