Method and apparatus for generating and processing modified audio bitstreams

The method and device for generating and processing modified MPEG-4 audio bitstreams address the challenge of transmitting additional audio data in Bluetooth systems by embedding it into the bitstream, achieving efficient and controlled audio transmission without additional complexity or battery consumption.

JP2026086530APending Publication Date: 2026-05-26DOLBY INTERNATIONAL AB +1
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
DOLBY INTERNATIONAL AB
Filing Date
2026-02-03
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing Bluetooth (BT) systems face challenges in transmitting additional audio data, such as ringtones or system sounds, alongside encoded media data without increasing system complexity and battery consumption by requiring additional links and codec pairs.

Method used

A method and device for generating and processing modified MPEG-4 audio bitstreams that embed additional media data into the bitstream, allowing simultaneous transmission and processing of system audio/earcons with encoded media data without additional decoding and encoding, using MPEG-4 audio bitstream extensions.

Benefits of technology

Enables efficient transmission and processing of additional audio data with encoded media data over Bluetooth without additional complexity or battery consumption, ensuring proper rendering and control of audio levels.

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Abstract

This specification describes a method for generating a modified bitstream in a source device. [Solution] The method includes a) receiving a bitstream containing encoded media data with a receiver; b) embedding a payload of additional media data with an embedder to obtain a modified bitstream containing the encoded media data and the payload of the additional media data as output from the embedder; and c) outputting the modified bitstream to a sink device. Furthermore, a method for processing the modified bitstream in the sink device is described. Furthermore, each source device and sink device, a system of the source device and sink device, and each computer program product are described.
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