BUT UH IN CONTRARY TO TO HAVING AL ANOTHER KEYBOARD AND MOUSE THAT ONLY ONE PERSON CAN USE NOW THE DIFFERENT PERSONS CAN USE THE THE SCREEN UM AT THE SAME TIME WITH THE WITH THE MOUSE OKAY SO BASED ON THE FACT THAT MOST OF THE P. F. L. STUDENT HAVE THEIR OWN LAPTOP UH THE IDEA IS THE SIMILAR IDEA UH IS TO OKAY PEOPLE ARE COMING ON A SHOULD BE ABLE TO VERY EASILY UH USE SOME UM RESOURCES OFFERED TO THEM SO SO THE IDEA IS TO HELP THEM SOCIALISING ORGANISING THEIR OWN WORK AND UH NOT IN A CLASSROOM SETTING BUT IN A SOCIAL PLACE WHERE THEY COULD GATHER OKAY YEAH SO IT'S DIFFERENT BUT STILL UH YEAH IT'S SAME IT'S IT'S COLLABORATIVE WORK BUT UH DIFFERENT DIRECTIONS IT HAS NOTHING TO DO WITH UH AUDIO PROCESSING AND UH L. E. D. SO OKAY SO UH MAYBE WE CAN FOCUS A LITTLE UH UH BIT MORE ON THE WHAT WE HAVE DONE ABOUT UH THE NOISE SENSITIVE TABLE TELL YOU ABOUT UH WHAT WE'RE INTERESTED IN ON THE SO WE START SO GUILLAUME STARTED BY UH DEVELOPING THE APPLICATION THAT GET THE AUDIO INPUT SO WE WANT IT TO HAVE A MODULAR ARCHITECTURE TO BE ABLE TO IMPROVE EACH UH LAYER SEPARATELY SO THE AUDIO INPUT UH IS QUITE BASIC NO WE U WE USE UH SOUND CARDS TO TO GET UH THE SIGNALS AND TO DETECT TO UH ON TO HA AND WE HAVE A THRESHOLD TO DETECT UH WHEN SOMEONE IS TALKING AT LEAST WHEN THE NOISE IS UH AT UH IS BIGGER THAT UH SPECIFIC LEVELS AND THEN WE GET THIS INFORMATION ABOUT PEOPLE TALKING NOT TALKING AND TO SAY OKAY UH THIS ONE IS TALKING FOR X. TIME OR UH HAS BEEN TALKING UH X. PERCENT OF THE FIVE LAST MINUTES OR TWO PEOPLE ARE TALKING TOGETHER SO THIS IS MORE SEMANTIC UH LAYER UH WE CALL THAT INTERACTION UH MODELS AND UH UH SO WHEN DIFFERENT CONDITIONS ARE TRIGGER ARE DETECTED WE TRIGGER ON THE INTERACTION EVENT SO VERY SIMPLE ONE COULD BE ONE PERSON IS TALKING SO IT'S UH THE EASY ONE AND THERE IS UH A LOT OF PROGRAMMES NOW ABOUT THIS IMPLEMENTATION IS IT'S NOT UH IT'S NOT OBVIOUS HMM STILL IN PROGRESS ALMOST DONE IT'S MORE IMPORTANT THAT FIRST WE WANT TO TO HAVE SOME EVENTS LIKE TWO PEOPLE ARE TALKING OR ONE ONE STARTED AND ANOTHER STARTED AND UH WELL MORE OR LESS BROKE INTO THE SPEECH OF THE FIRST PERSON AND SO ON AND THEN YOU CAN START TO VISUALISE THESE UH DIFFERENT SITUATIONS SO THE LAST LAYER IS ABOUT THIS VISUALISATION W WE WILL UH WE ARE THINKING ABOUT THE VISUAL GRAMMAR MEANING THAT WHEN WE HAVE AN INTERACTION EVENT THAT IS UH FIRED WE UH WILL ASSOCIATE UH A WAY OF VISUALI VISUALISING IT SO FOR INSTANCE IF SOMEONE IS TALKING UH WE CAN JUST HAVE A LIGHT THAT WILL CENTRE ON THE POINT THAT IS UH CLOSE TO HIM THAT COULD BE AN UH INSTANT UH FEEDBACK AND IF HE HAS BEEN TALKING MAYBE SEVENTY PERCENT OF THE LAST FIVE MINUTES AS ME UH UH IT IT MAY BE REFLECTED AS THE UM INTENSITY OR SIZE OF A S A CYCLE CENTRE ON THE SAME POINT AND THEN IF THERE'S TURN TAKING WE CAN SHOW WAVES OF LIGHT GOING FROM UH ME TO YOU UH OR FROM OTHER PEOPLE OR USING THE CENTRE PART OF THE TABLE TO SHOW SOME SOMETHING MORE ABOUT THE UM UH MORE GENERAL UH DYNAMIC WELL THAT'S UH I GUESS IT'S FIRST PROTOTYPE I YOU SEE WE START WITH UH PEOPLE TWO PEOPLE TALK OR AND DON'T AND DON'T THEY UH AFTERWARDS UH ONE COULD IMAGINE THAT YOU FOR EXAMPLE YOU CAN DETECT THAT SOMEONE IS A BIT ANGRY OR IS UH YELLING AND WI WITH DIFFERENT COLOURS WITH UH WITH DIFFERENT COLOURS ON ON TABLE YOU COULD UH DISPLAY THIS THIS UH GIVE SOME FEEDBACK BUT UH OR YEAH SORRY DIDN'T GET THAT IN UH WE CAN CHANGE INTE SO WE HAVE UH EIGHT BY EIGHT UH TWO TIMES LEDS EACH UH LED IS ACTUALLY THREE LEDS UM TH UH M. G. B. LED AND WE CAN CHANGE THE INTENSITY SO IT'S ALREADY QUITE A RICH UH FEEDBACK OKAY YEAH AND JUST A LAST THING SO THIS TABLE IS UH TWO DIFFERENT THINGS IT'S UH ONE OBJECT THAT WILL UH G PROVIDE A FEEDBACK TO THE TERMINAL USERS PEOPLE COLLABORATING AROUND UH THE TABLE BUT IT ALSO A TOOL FOR US AS A RESEARCHER TO TEST UH BOTH THE INTERACTION EVENT WE WANT TO DETECT AND TO TEST THE VISUALISATION SO UM WE WILL BE ABLE TO EDIT SOME UH INTERACTION RULES AND THE VISUALISATION UH GRAMMAR AND UH WE WILL BE ABLE TO PROCESS TO POST PROCESS SOME CONVERSATION JUST TO SEE WHAT HAPPENS AND TO UH HAVE THESE UM MODELS ON FEEDBACK WORKING WHEN PEOPLE ARE USING THE TABLE OKAY HMM SO I THINK IT WAS MM SO UH I GUESS YOU WANT TO KNOW WHAT YOU COULD DO WITH AN ARRAY MAYBE YES YES EVERYTHING FROM UM MULTI SWITCH ADMINISTRATION OF UH AUDIO AND HOW YOU CAN UH ANALYSE IT UH WHAT INFORMATION YOU CAN GET OUT OF SPEECH AND SO ON SO YEAH I HAVE ONE OR OR TWO QUESTION I DON'T KNOW IF YOU WANT TO TO BEGIN WITH THE THE EXPLANATION ABOUT THE THE RELEASE UM MAYBE WE COULD SUMMARISE THE QUESTION WE WERE THINKING ABOUT YEAH IT'S GOOD IDEA JUST GIVE SOME QUESTIONS UH SO UM I HAVE ACTUALLY TWO QUESTIONS THAT ARE UH JUST PRACTICAL QUESTION ABO ABOUT MY UM MY IMPLEMENTATION NOW UH I NO RIGHT BASIC INFORMATION WE NEED N NOT THE NOISE LEVEL THE SOUND LEVEL UH BECAUSE UH WHAT YOU GET FROM FROM THE MICROPHONES IS UH A CURVE AND UM A WAY THE WAY UH IT IS IMPLEMENTED NOW UH TO DETECT YES YOU HAVE A UH I HAVE PACKETS UH FOR UH LET'S SAY UH THIS IS UH THIS IS UH NOT UH FIXED BUT UH I HAVE PACKETS FOR ABOUT UM UH ALPHA SECOND SO IT'S UH SECOND AND UH ON THESE PACKETS I WANT TO KNOW THE THE SOUND LEVEL THE AVERAGE SOUND LEVEL SO UH THE WAY I DO IT NOW IS UH TO TO TAKE UH EACH TOP OF THE CURVES' BOTTOMS AND UH JUST MAKING LEVERAGE THIS MM-HMM BUT I DON'T KNOW IF IT'S IT'S NOT REALLY UM THE BEST WAY TO DO IT BUT I DON'T KNOW UH IF YOU MEAN THE TOP OF THE WAVE FORM OKAY PROBABLY IT'S UH IT'S F BE A GOOD IDEA IF YOU HAVE S TWO UH WITH UM WITH SOURCE LIKE UH BOOKS OR WEB PAGE CENTRE GIVE A LOT OF INFORMATION HOW IT IS AUDIO PROGRAMMING AND SO ON WORKS CETERA MAYBE YOU YOU KNOW SOME AT LEAST A GOOD BOOK THAT'S UH DEALING WITH THIS STUFF OH OKAY SO THIS IS THIS THE THE FIRST QUESTION