2026-06-09 Version 2.3.3
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Details of 'DTS/STQ-326' Work Item
Work Item Reference ETSI Doc.
Number
STF Technical Body
in Charge
Standard Not
Ready For
Download
  DTS/STQ-326 TS 104 234   STQ
  Current Status
(Click to View Full Schedule)
Latest
Version
Cover Date Standstill Creation Date
  Stable draft (2026-06-08) 0.2.2 Draft   View Standstill Information 2025-07-02
  Rapporteur Technical Officer Harmonised Standard
  Jan Reimes Antoine Burckard No
 
Title Speech and multimedia Transmission Quality (STQ); Single-ended perceptual measure of perceived listening effort for speech communication systems
M-Measure framework 
Scope and Field
of Application
The work will specify a single-ended measure to quantify and assess the signal quality of transmitted and/or processed speech, and which is correlated to human auditory perception, like e.g., perceived listening effort.

It is intended to be used for the evaluation of (but not limited to) speech synthesis and reproduction systems under realistic acoustical conditions (such as e.g., background noise and reverberation), for which no reference signal is available.

The measure can also be applied to speech transmission systems (including live monitoring) and terminals in sending/receiving direction under realistic acoustic conditions. 
Supporting
Organizations
HEAD acoustics GmbH, Intel Deutschland GmbH, Qualcomm Technologies Int, Amazon Web Services 

 

Keywords Projects Clusters Frequencies Mandates Directives
  electro-acoustic
Framework
listening effort
listening quality
metrics
NOISE
Reverberation
SIGNAL PROCESSING
SPEECH
TESTING
  Better Living with ICT
Interoperability
     
Official Journal
     
Remarks
2026-06-08 reimes Draft contributed - V 0.2.2 contributed for Discussion in STQ(26)082011r1 as Stable draft
2026-06-08 reimes A new draft is uploaded - V 0.2.2 with status: Stable draft
2026-06-08 reimes Stable draft proposal in contribution STQ(26)082011 was Revised by STQ
2026-06-03 reimes Draft contributed - V 0.2.1 contributed for Discussion in STQ(26)082011 as Stable draft
2026-06-03 reimes A new draft is uploaded - V 0.2.1 with status: Stable draft
2026-02-18 reimes Draft contributed - V 0.1.1 contributed for Discussion in STQ(26)081030 as Stable draft
2026-02-18 reimes A new draft is uploaded - V 0.1.1 with status: Stable draft
2026-02-02 burckarda Draft file Deleted - Version 0.0.8 in file STQ-326v008.zip has been permanently deleted
2026-02-01   A new draft is uploaded - V 0.0.8 with status: Early draft - with comment: Milestone _A TTF T054
2025-10-02 reimes Draft contributed - V 0.0.1 contributed for Discussion in STQ(25)080020 as Early draft
2025-10-02 reimes A new draft is uploaded - V 0.0.1 with status: Early draft
2025-07-02 Jan Reimes Work item adopted STQ, see contribution STQ(25)079036
2025-07-02 REIMES WI proposed to TB STQ, see contribution STQ(25)079036
 

Specific aspects
  User/consumer aspects

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