Torben Holm Pedersen

Transkript

1 1 Torben Holm Pedersen

2 bt1 The Knowledge Centre DELTA Test-, design-, service-, consulting- education within electronics, software, optics and acoustics. 70 years of experience 270 employees out of which 50% are engineers Annual turnover 283 mill. Kr. 50% export 2,500 customer assignments annually Headquarters in Hørsholm Departments in Odense, Århus, Them, Västerås, and Wales 2

3 Slide 2 bt1 A3: Scaler til 98% i Advanced. Print anyway. A4: Scaler til 69% i Advanced A4 papir vælges Print anyway Birgit Toft;

4 3 Electronics Testing

5 4 Light & Optics

6 5 Microelectronics

7 6 Acoustics & Vibration

8 Udendørs støj og vibrationer - Flystøj - Lydudbredelse - Støj fra industri - Støjhandlingsplaner - Støj fra havneområder - Trafikstøj - Vindmøller 7

9 Auralisering Hvordan vil det lyde? Auralisering gør det muligt at høre, hvordan planlagte udendørs lydkilder som f.eks. Vindmøller, jernbaner eller veje vil komme til at lyde i forskellige landskaber. 8

10 9 Miljøstyrelsens Referencelaboratorium

11 Building acoustics Laboratory measurements Field measurements Calculations Consulting Projects, investigations 10

12 Building acoustics laboratory measurements Test facilities Reverberant rooms Kgs. Lyngby y Århus Accredited by DANAK Reg. no. 100 Notified body CPD Notification ID no

13 Building acoustics laboratory measurements Documentation of Acoustic Properties Labelling Contractor Manufacturer Product Development Design modifications Standardization Round Robin tests 12

14 13 DTU lyddøde rum

15 Rumakustik 5 14

16 Teknisk Audiologi 15

17 16 Maskinakustik og produktlyd

18 Warning signals 17

19 SenseLab Sensoriske målinger mennesket som måleinstrument Lytte-test Forbruger præferencer og meninger Perceptiv karakteristik (lyd-profil) Preference mapping Sammenhængen mellem perceptioin og præference 18

20 19 SenseLab Staff

21 20 Optagelse med kunsthoved

22 Test of fan noise from high-end flat screen TV s 21 Torben Holm Pedersen

23 22 Listening test with loudspeakers

24 23 Listening set-up for headphones

25 24 Panel med 31 trænede assessorer

26 SenseLabOnline Listening test: Select test methology Experimental design Recruit listening panel Training panel Panel familiarisation Selection of stimuli Instructions Blocking and balancing Calibrate system Stimulus presentation Data gathering Test administration Data post processing Statistical analysis Analysis and interpretation Reporting 25

27 Rapid-response listening tests Lets you create a test anytime Perform the listening test anywhere Lab, home, different countries with anyone Expert, experienced or consumer assessors anytime As soon as assessors can be scheduled Get the results fast Automated and robust statistical analysis SenseLab handles all the field work 26

28 27 Landing in SenseLabOnline

29 28 Building a test

30 29 Uploading sound files

31 30 Assessor test GUI for one of the test types

32 Statistical analysis for customers p-value pvalue of the different effects of the model Adjusted R²= F-value Fvalue of the different effects of the model (df=19) p-value 0.03 F-value (df=14) (df=1) 0.00 < < < < e-05 < (df=1) 5.88 (df=266) 3.35 (df=14) 9.42 (df=19) 5.25 (df=1) Assessor System Sample Replicate Asses ssor:system Asses ssor:sample Syst tem:sample Sampl e:replicate Assessor System Sample Replicate Asses ssor:system Asses ssor:sample Syst tem:sample Sampl e:replicate 31

33 Main results System Grade : ancho r 0: referencee 1: HD418 2: HD428 3: HD438 4: HD448 5: HD5555 6: HD Samples confidence level=0.95

34 Different domains 33

35 Different domains 1 Mobile music and communication 34

36 Different domains 2 Stereo systems and surround sound 35

37 Different domains 3 Product sound Product sound Product sound 36

38 Different domains 4 Environmental noise Environmental noise Noise barrier 37

39 Different domains 5 Environmental noise Room acoustics Environmental noise 38

40 39 Project partnes and customers

41 Projekter under Dansk Lydteknologi Færdigt Teltakustik tik I gang Ekstern lyd til elbiler Undervejs (partnere søges) Lyttepanel af hørehæmmede Tydelighed af impulser PA lydkvalitet Andre projektideer er velkomne!!! 40

42 41 Thank you for your attention!

43 Sound, Perception and Preference The Filter Model Physical measurement Perceptive measurement Affective measurement Filter 1, the senses Filter 2, non acoustical factors Physical stimulus M1 Perceived stimulus M2 +/- Likes/dislikes M3 Technical Measuring equipment Sensory sensitivity Mood and selectivity Expert panels, Context Consumers, trained listeners Emotion End users Background Expectation ti Objective Subjective 42