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The Global Metronome
by Leibniz Universität Hannover, Institut für Kommunikationstechnik - IKT

Our synchronization service is based on the approach of using the Global Positioning System (GPS) to generate a globally shared synchronized time signal which is used as a global metronome within a Networked Music Performance (NMP) [1]. Measurements with our implementation show that by using the GPS signal as a global time reference, extremely accurate time synchronization and audio click generation can be achieved [2]. Several rhythmic experiments with pairs of 23 subjects were performed at IKT. To investigate the effect of the global metronomeon the ensemble accuracy in NMPs we inserted artificial delays (6 ms to 91 ms) into the audio transmission between the pairs of subjects. Each pair had to play a predefined rhythm at separated rooms that where acoustically and visually isolated from each other. The experiments were evaluated in terms of tempo acceleration, imprecision and subjective judgment [3]. 
[1]
Reid Oda and Rebecca Fiebrink, “The Global Metronome: Absolute Tempo Sync for Networked Musical Performance,” Proceedings of the International Conference on New Interfaces for Musical Expression, vol. 16, pp. 26-31, 2016.
[2]
Hupke, R., Beyer, L., Nophut, M., Preihs, S., and Peissig, J., “A Rhythmic Synchronization Service for Music Performances over Distributed Networks,” in Fortschritte der Akustik: DAGA 2019, 45. Jahrestagung für Akustik, Rostock, 2019.
[3]
Hupke, R., Beyer, L., Nophut, M., Preihs, S., and Peissig, “Effect of a Global Metronome on Ensemble Accuracy in Networked Music Performance,” Audio Engineering Society Convention 147, Audio Engineering Society, 2019. [Under Review]. 

PMSE related or relevant activities in 3GPP technologies

The intention is to give anoverview on PMSE related or relevant activities in 3GPP technologies. 
Studies
Study on Communication for Automation in Vertical domains (CAV): FS_CAV(SA-1)
https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3187

Study on Business Role Models for Network Slicing: FS_BMNS (SA-1)
https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3376

Study on enhancement of 5GS for Vertical and LAN Services (SA-2)
https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3487

Study on Audio-Visual Service Production: FS_AVProd (SA-1) https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3520
        
Study on enhancement of Ultra-Reliable Low-LatencyCommunication (URLLC) support in the 5G Core Network (5GC) (SA-2)
https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3453

Technical Specifications (TS)
Service Requirements for Next Generation New Servicesand Markets (SA-1)
https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3107

Service Requirements for cyber-physical controlapplications in vertical domains (SA-1)
https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3528

Service Requirements for Audio-Visual Service Production (SA-1)
https://portal.3gpp.org/desktopmodules/WorkItem/WorkItemDetails.aspx?workitemId=840045

Contact and Imprint

Contact

LIPS Project Office
c/o Sennheiser electronic GmbH & Co. KG
Spectrum and Innovation
Dr. Andreas Wilzeck
Am Labor 1
30900 Wedemark

info@lips-project.de

Imprint

LIPS Project Office
c/o Sennheiser electronic GmbH & Co. KG
Spectrum and Innovation
Am Labor 1
30900 Wedemark

Tel. +49 5130 600 0
Fax. +49 5130 600 1300
info@lips-project.de

VAT Id.: DE 115055014 (Register Court Hannover HRA 120100)