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HEAD News Herzogenrath (Germany), January 2015

ITU-T meeting at HEAD acoustics with good progress on draft Recommendation P.emergency and new revisions on P.1100 and P.1110

In December HEAD acoustics hosted a two-day Rapporteur meeting of Q.4 of the standardization body ITU-T at its company headquarters in Herzogenrath to discuss the new draft Recommendation P.emergency. This standard will provide tests to verify and optimize speech quality of emergency call systems in vehicles. The third day was dedicated to the final update and study group consensus during the WP1/SG12 meeting of the ITU-T Recommendations P.1100 and P.1110.
The group discussed scope and content of P.emergency. Besides the definition of use cases, emergency call (eCall) specific tests and measurements were defined. P.emergency differs clearly from the two “traditional” car hands-free Recommendations P.1100 and P.1110 by focusing on intelligibility and important aspects of conversational quality in the emergency call situation, P.1100 and P.1110 are more focused on different speech quality aspects in the car hands-free situation. Not only ITU-T member took part in that discussion. In addition to a large number of experts from the automotive industry also members of the Russian ERA-GLONASS federation gave important input to P.emergency. “It was a very successful meeting with good and vivid discussions on P.emergency. I think that we can achieve our objective to pass the standard on the next meeting of Study Group 12 in May,” says Hans W. Gierlich, Managing Director of HEAD acoustics Telecom and rapporteur of the responsible question 4 in ITU-T SG 12.
On the last day the WP1 of ITU-T met and consented the new revisions of ITU-T Recommendations P.1100 and P.1110. Major changes in these two standards include the use of new real speech signals described in Recommendation ITU-T P.501. Furthermore the test signal level was increased by 3dB in sending direction and now the new automated real speech based double talk measurements developed by HEAD acoustics according to Recommendation ITU-T P.502 are used.
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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