Systems and methods for signaling of information associated with audio content

Patent metadata

Field	Value
Publication number	US-10861435-B2
Application number	US-201716087601-A
Country	US
Kind code	B2
Filing date	Mar 23, 2017
Priority date	Mar 25, 2016
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

A device may be configured to parse a syntax element specifying the number of available languages within a presentation associated with an audio stream. A device may be configured to parse one or more syntax elements identifying each of the available languages and parse an accessibility syntax element for each language within the presentation.

First claim

The invention claimed is:

1. A method for signaling an audio stream properties descriptor, the method comprising:
signaling the audio stream properties descriptor, the audio stream properties descriptor comprising:
(i) a language present syntax element indicating whether language information for a presentation is present,
(ii) a number of languages minus one syntax element, when the language present syntax element is set; and
(iii) one or more language length syntax elements, when the language present syntax element is set, wherein:
the number of languages minus one syntax element plus one specifies a number of languages that are available within the presentation,
each of the one or more language length syntax elements specifies a length in bytes of a language supported in the presentation, and
a first language in the languages is a primary language for the presentation, and a remaining language in the languages indicates an additional language available in the presentation.

2. The method of claim 1 , wherein the primary language includes a default language, an official or a most common language of a region.

3. A device for signaling an audio stream properties descriptor, the device comprising:
one or more processors configured to:
signal the audio stream properties descriptor, the audio stream properties descriptor comprising:
(i) a language present syntax element indicating whether language information for a presentation is present,
(ii) a number of languages minus one syntax element, when the language present syntax element is set, and
(iii) one or more language length syntax elements, when the language present syntax element is set, wherein:
the number of languages minus one syntax element plus one specifies a number of languages that are available within the presentation,
each of the one or more language length syntax elements specifies a length in bytes of a language supported in the presentation, and
a first language in the languages is a primary language for the presentation, and a remaining language in the languages indicates an additional language available in the presentation.

4. A device for receiving an audio stream properties descriptor, the device comprising:
one or more processors configured to:
receive the audio stream properties descriptor, the audio stream properties descriptor comprising:
(i) a language present syntax element indicating whether language information for a presentation is present,
(ii) a number of languages minus one syntax element, when the language present syntax element is set, and
(iii) one or more language length syntax elements, when the language present syntax element is set, wherein:
the number of languages minus one syntax element plus one specifies a number of languages that are available within the presentation,
each of the one or more language length syntax elements specifies a length in bytes of a language supported in the presentation, and
a first language in the languages is a primary language for the presentation, and a remaining language in the languages indicates an additional language available in the presentation.

Assignees

• Sharp Kk

Inventors

• Misra Kiran Mukesh
• Deshpande Sachin G
• Ng Sheau
• Segall Christopher Andrew

Classifications

• H04H20/59 Primary

  for emergency or urgency · CPC title

• H04H20/86

  Arrangements characterised by the broadcast information itself · CPC title

• H04H60/58

  of audio {(determination or detection of speech characteristics in general G10L25/00; speech recognition in general G10L15/00)} · CPC title

• H04N21/233

  Processing of audio elementary streams {(monitoring, identification or recognition of audio in broadcast systems H04H60/58)} · CPC title

• H04N21/2362

  Generation or processing of Service Information [SI] · CPC title