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HEAD News Herzogenrath (Germany), Feb. 23, 2015
ACQUA 3.3.100 with new features
Updates on 3QUEST, Automated Double Talk Analysis and POLQA
The next ACQUA version 3.3.100 is available as of now. Three new features are implemented concerning 3QUEST, Automated Double Talk Analysis and POLQA. Below we present you the main features.
3QUEST (3-fold QUality Evaluation of Speech in Telecommunications) is one of the most common calculation methods for ACQUA which allows the objective speech quality evaluation of telecommunication terminals.
It is based on the ETSI standards EG 202 396-3 and TS 103 106 which cover both wideband and narrowband scenarios including background noise.
Now 3QUEST is updated according to version 1.4.1 of standard EG 202 396-3. While the quality evaluations are based on auditive databases of the EG standard, the calculation method was technically adapted to TS 103 106. Up to customers’ choice, the previous version 1.3.1 can also still be calculated.
The new 3QUEST mode is available in ACQUAlyzer (above) and in the SMD
Click here for a detailed view
Automated Double Talk Analysis
HEAD acoustics has extended the Automated Double Talk Analysis according to ITU-T Recommendation P.502. Now it can also be used with real speech instead of CSS signal.
This measurement requires ACOPT 32, Option Speech Based Double Talk Analysis. Please note that Automated Double Talk Analysis with CSS signal still works without ACOPT 32.
The user can choose between three algorithms - now also Automated Double Talk Analysis according to ITU-T P.502 is available
Click here for a detailed view
This option offers a single measurement descriptor (SMD) and calculation method for determining MOS values (Mean Opinion Scores) according to POLQA (Perceptual Objective Listening Quality Analysis).
POLQA is a voice quality testing technology for circuit switched, mobile and IP based networks. It was standardized by the International Telecommunication Union (ITU-T) as Recommendation P.863, and can be applied for voice quality analysis of HD Voice, 3G and 4G/LTE networks.
Now POLQA version 2.4 is available which is according to update of ITU-T P.863. Both new and old version (v1.1) can be calculated with ACQUA.
The user can change the POLQA version (above) and further settings for the measurement
Click here for a detailed view
Steffen Scholz
HEAD acoustics GmbH
Ebertstr. 30a,
D-52134 Herzogenrath
Phone: +49 (0) 2407 577 0
Fax: +49 (0) 2407 577 99
About HEAD acoustics GmbH:
HEAD acoustics was founded in 1986 and has been involved in noise and vibration, electroacoustic and voice quality testing since its inception. HEAD acoustics is based in Herzogenrath, Germany, with affiliates in USA, Japan and France as well as a world-wide network of representatives. The Telecom Division of HEAD acoustics manufactures telecom test equipment and provides consulting services in the field of speech and audio quality. Moreover, HEAD acoustics closely co-operates with DECT Forum, ETSI,  ITU-T, 3GPPP, TIA CTIA, GSMA and other standardization bodies with regard to the development of quality standards for voice transmission and speech communication. In many partnership projects, HEAD acoustics has proven its competence and capabilities in conducting tests and optimizing communication products with respect to speech and audio quality under end-to-end as well as mouth-to-ear scenarios.
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