Context-based Audio Enhancement
(MPAI-CAE)

Improves the user experience for audio-related applications (e.g. entertainment, communication) in different contexts (e.g., in the home,  in the studio).

What MPAI-CAE is about
Description of the MPAI-CAE V2.1 specification

Technical Specification        Conformance Testing

Context-based Audio Enhancement (MPAI-CAE) is an MPAI standard that improves the user experience for several audio-related applications including entertainment, communication, teleconferencing, gaming, post-production, restoration etc. in a variety of contexts such as in the home, in the car, on-the-go, in the studio, etc. The Institute of Electrical and Electronic Engineers (IEEE) has adopted MPAI-CAE with the name IEEE 3302-2022.


Version 2 – Version 1

NPAI has developed Technical Specification – Context-based Audio Enhancement (MPAI-CAE) V2.1 implementing all the changes required by the new web-based format of MPAI Technical Specifications.

MPAI has developed MPAI-CAE V2 containing the data formats required by the Audio Scene Description Composite AIM. This AIM receives an audio stream from a microphone array and produces a description of the orientation of the composing speech streams.

Download Technical Specification Context-based Audio Enhancement (MPAI-CAE) V2.1

Download Technical Specification: Context-based Audio Enhancement (MPAI-CAE) V2.

MPAI Acknowledges the important contributions made by Marina Bosi, Mert Burkay Çöteli, Nadir della Pozza, Mark Seligman, and Matteo Spanio  in the development of MPAI-CAE V2.


Version1 – Version 2

MPAI has published Conformance Testing Specification: Context-based Audio Enhancement (MPAI-CAE) V1.4.

MPAI is indebted to the following individuals for the development of MPAI-CAE Technical Specification V1:

Yan Abu Arab (Speech Morphing Inc.), Marina Bosi (Stanford University), Sergio Canazza (Audio Innova), Mert Burkay Çöteli (ASELSAN A.Ş.), Nadir Dalla Pozza (Audio Innova), Michelangelo Guarise (Volumio), Hüseyin Hacıhabiboğlu (METU), Niccolo’ Pretto (Audio Innova), Paolo Ribeca (James Hutton, Ltd.), Mark Seligman (Speech Morphing Inc.), and Fathy Yassa (Speech Morphing Inc.).

MPAI published the WD of Technical Specification – Context based Audio Enhancement (MPAI-CAE) WD for Community CommentsAnybody was entitled to send comments to the MPAI Secretariat. Comments will be considered in the final draft of MPAI-CAE if received by 2024/01/23T23:59 UTC.


See the public MPAI-CAE documents:

  1. MPAI-CAE Standard
  2. Call for Patent Pool Administrator (closed)
  3. Introduction to MPAI-CAE
  4. About MPAI-CAE
  5.  Call for Technologies (closed)
  6. Framework Licence
  7. Use Cases and Functional Requirements (V1)
  8. Application Note

MPAI-CAE standard

Users of MPAI standards should bear in mind the Notices and Disclaimers concerning use of MPAI Standards.

Version 2.1 Technical Specification
Version 2 Technical Specification
Version 1.4 Conformance Testing

Visit the About MPAI-CAE page.