WG 6 – MPEG Audio Coding

WG 6 MPEG Audio is a group of experts from industry and academia, taking care of a vast set of audio compression standards developed by the Moving Picture Experts Group (MPEG) to efficiently compress digital audio and related metadata.
Key objectives and responsibilities of MPEG Audio include:

• Recommendation of Standards: responsible within ISO/IEC for recommending a set of standards that ensure consistent and efficient encoding and decoding of audio data.
• Collaboration: cooperates with other standardization bodies to address complementary or related technologies, ensuring broad compatibility and interoperability.
• Defining Audio Material and Devices: definition of relevant input audio materials and target presentation devices to ensure audio quality is preserved across various platforms and applications.
• Development of Algorithms: development of efficient audio encoding and decoding algorithms, to improve audio compression without sacrificing quality.
• Metadata for Audio: identification and definition of metadata that describes the properties of audio signals and creation of algorithms to extract this metadata, facilitating more accurate representation and rendering of audio.
• Audio Rendering: development of algorithms and metadata that enhance the rendering of audio on playback devices, ensuring high-quality sound reproduction.
• Coded Representation of Audio: proposal of standards for the coded representation of both audio signals and associated metadata, ensuring consistent and efficient data storage and transmission.
• Subjective Testing: conducting subjective tests to evaluate proposed and standardized technologies based on real-world listening experiences.
• Exploration of New Technologies: It also explores new technologies within its scope, continuously pushing the boundaries of audio compression and rendering to meet the needs of modern applications. 

Overall, MPEG Audio plays a critical role in developing standardized audio technologies that enable high-quality, efficient audio encoding and decoding across a wide range of devices and platforms. The group’s work ensures that audio content is not only compressed effectively but also rendered with optimal quality, enhancing the user experience in various media application

WG6 MPEG Audio Coding Verification Test Reports

Document	Meeting	Title
N1419	37	Report on the Formal Subjective Listening Tests of MPEG-2 NBC multichannel audio coding
N1420	37	Overview of the Report on the Formal Subjective Listening Tests of MPEG-2 NBC multichannel audio coding
N1712	39	MPEG-2 AAC tools complexity overview
N2005	42	Revised report on complexity of MPEG-2 AAC tools
N2006	42	Report on the MPEG-2 AAC Stereo Verification Tests
N2276	44	Report on the MPEG-4 audio NADIB verification tests
N2424	45	MPEG-4 Audio verification test results: Speech Codecs
N2425	45	MPEG-4 Audio verification test results: Audio on Internet
N2957	49	Revised Report on complexity of MPEG-2 AAC Tools
N3075	50	Report on MPEG-4 Version 2 Audio Verification Test
N3233	51	Report on Transmission of MPEG-4 Audio over RTP
N5571	64	Report on Informal Subjective Quality Tests of MPEG-4 Extension 1 (Bandwidth Extension)
N6009	66	Report on the Verification Tests of MPEG-4 High Efficiency AAC
N6675	69	Formal Verification Report on MPEG-4 Parametric Audio Coding
N7137	72	Listening Test Report on HE-AAC V2
N7686	74	Verification Report on MPEG-4 ALS
N7687	74	Verification Report on MPEG-4 SLS
N7701	74	Performance of MPEG Surround Technology
N8851	79	Report on MPEG Surround Verification Tests
N10032	85	Report on MPEG-4 AAC-ELD Verification Tests
N11657	94	Report on Spatial Audio Object Coding Verification Tests
N12232	97	Unified Speech and Audio Coding Verification Test Report
N13215	102	Verification Test Report on USAC Common Encoder,JAME
N16584	117	MPEG-H 3D Audio Verification Test Report