1. Real time analysis of human voice - environment for support of voice training and ORL medicine Tomáš Kulhánek 1,3 Marek Frič 2 1 CESNET z.s.p.o. 2 Academy of Performing Arts 3 Institute of Pathological Physiology, First Faculty of Medicine, Charles University in Prague

2. Real time analysis...EGI Technical Forum Prague 20122 Overview ● What we do? ● How we did it without virtual infrastructure & cloud? ● How we do it with virtualization? ● How we do it with cloud? ● What are challenges for scientific cloud?

3. Real time analysis...EGI Technical Forum Prague 20123 What we do ● Institute of Pathological Physiology ● Interdisciplinary team (~10 people)- Mathematical modeling of human physiology, Software system for simulation application, Graphical design, Educational application – web atlas of physiology and pathophysiology (www.physiome.cz/atlas)www.physiome.cz/atlas ● BOINC system for numerical optimization

4. Real time analysis...EGI Technical Forum Prague 20124 What we do ● Academy of performing arts – Musical acoustic research centre (~5 people) ● Sound & human voice research, research in the field of voice pathologies (phoniatry & ORL medicine) ● Voice analysis – phoniatric examination, voice professional training ● Deployed in virtual infrastructure, test deployment in EGI cloud

5. Real time analysis...EGI Technical Forum Prague 20125 What we do together ● Voice analysis → Voice range profile ● Maximum and minimum intensity levels across the vocal range – Normal speech – singing ● phoniatric examination, voice professional training

6. Real time analysis...EGI Technical Forum Prague 20126 How we do it ● We belong to 99% of scientific researchers who haven't use grid infrastructure for research yet ● Our demands are not big, we need them occasionally ● We use commercial tools for signal analysis (MATLAB + toolboxes) and for modeling&simulation (3DS – Dymola) on MS Windows platform ● do not have resources to support cross platform development

7. Real time analysis...EGI Technical Forum Prague 20127 How we do it without cloud ● Voice analysis

8. Real time analysis...EGI Technical Forum Prague 20128 How we do it without cloud ● application installed locally on users PC – voice trainers, specialists in ORL – (distributed via CD or DVD, email …, on-site installation) ● Each user must be served personally, updates distributed same way ● Many different places in Czech republic and Slovakia

9. Real time analysis...EGI Technical Forum Prague 20129 How we do it with virtual infrastructure ● Install and maintain application on remote resource (virtual server) ● Customized RDP protocol to transfer sound recording without loss information ● Server accessible via CESNET2 network (application needs 1Mbps) ● Distribute connection information to users

10. Real time analysis...EGI Technical Forum Prague 201210 How we do it with virtual infrastructure ● Pros ● Centralized maintenance, upgrade of application, debugging & support ● Collect analysis for further statistical research ● Cons ● Occasional need to serve lot of users – scale up ● HW maintenance ● Sometimes users cannot connect – firewall restrictions, network breakdown,...

11. Real time analysis...EGI Technical Forum Prague 201211 How we do it with cloud ● Virtual image in MetaCloud testbed provided by Metacentrum (CERIT-SC) ● Moved image from virtual infrastructure to cloud ● Deployment takes 1 week with help of support ● Instances can be cloned per needs ● We need our licenses for MS Windows platform ● Test application available as SaaS via Remote Desktop ● Virtual image in Amazon EC2 ● Licenses for MS Windows provided by vendor ● Deployment takes 2 hours without need of support involvement ● Instances can be cloned per needs, 1 micro instance free for 1 year ● available as Saas via Remote Desktop Connection

12. Real time analysis...EGI Technical Forum Prague 201212 Cloud in production from economical perspective ● Virtual image in MetaCloud testbed provided by Metacentrum (CERIT-SC) ● Costs – license for MS Windows platform – 1 standard license $880 - or ~$4800 per datacenter license, but we (users of cloud) cannot guarantee some license limitation ● Virtual image in Amazon EC2 ● Licenses for MS Windows provided by vendor - ● 1 reserved medium instance per 3 years + 1 on demand instances $1600

13. Real time analysis...EGI Technical Forum Prague 201213 What are challenges for scientific cloud? ● Provide licenses for commercial platforms (MS Windows) ● Typical deployment with minimal involvement of technical support ● DNS web service for cloud instances,... ● Seamless integration with data storage services

14. Real time analysis...EGI Technical Forum Prague 201214 Summary ● What we do, like to do on clouds? (real time analysis of human voice, computational physiology) ● How we did it without virtual infrastructure or cloud (local installation) ● How we do it with virtual infrastructure? (virtual servers on dedicated HW we need to administer) ● How we do it with cloud? (virtual servers in cloud, we do not need to administer) ● challenges for scientific cloud

15. Real time analysis...EGI Technical Forum Prague 201215 Thank you! ● Thank for support provided by Metacentrum and CERIT- SC