D2.3 Interim Report on Pilot Services - the School of Engineering ...

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Quantitative results, i.e. marks between 1 and 5 are being analysed regularly. Thisanalysis compares the best marks (1-2) with the worst marks (4-5) and also considersthe delta value, i.e. the difference between the two opposing value groups. The reasonfor taking the delta value into account is the fact that the most praised combination ofparameters may as well be among the most discussed or even the most disapproved of.As avoiding dissatisfaction is more important for a Public Service Broadcaster thanfancy design, combinations with even a few remarkably negative marks have to behandled very carefully.Clean Audio – general remarksHere, the plan has changed. During the first months of the project it turned out thatmore development work than had been envisaged is still needed to make Clean Audio amature access service. Please see Chapter 6 of Deliverable D3.2 for an overview,especially concerning IRT’s development work on Clean Audio in DTV4All. Therefore,Clean Audio is regarded as an emerging service in the project and dealt with in WP3.Still, RBB intends to take advantage of its user group recruited for the DVB subtitlefield test for testing Clean Audio on a larger scale than just a laboratory test. The idea isto provide those users in the group that are hard of hearing (about 25) with a DVDoffering different versions of Clean Audio for testing. Ideally, all the 25 hard of hearingpeople in this group will be involved. Preceding laboratory tests, however, will showwhether the clean audio services are suitable for all grades of hearing impairments.4.1.3 Red Bee (UK)The awareness campaign and evaluation involved interviews with a representativesample of adult television viewers in the UK. The study was carried out by GfK andwas funded by OFCOM. Red Bee and the BBC were involved in the preparation andtransmission of spots for the campaign itself.4.1.4 TVC (TV3)TVC has established a feedback service with users, both at association level and withindividuals, who write regularly offering their opinions regarding the service. Since2006 all comments and suggestions made by users has been entered providing, inretrospect, a valuable source of information.4.1.4.1 - ADThe aim of the test is to validate AD strategies and decisions concerning thorny issuesand dilemmas which are part of any script process of AD.The tests TVC shall take on board will have the following stages:1) Classification of thorny issues at two levels:2) From a technological point of view3) From a script creation point of view4) From the taxonomy of issues which will result from the previous point aquestionnaire will be drafted. This questionnaire will request feedback on theissues identified.5) Issues under analysis will be created in one or as many films as there are needed.Page 20
6) Questionnaires will be sent to users associations (ONCE and Asociació Catalanade Cecs) and also to a control group (5 blind users).7) Film/films will be broadcast and associations and users warned.8) Questionnaires will be analysed.9) Results will be compared with existing guidelines such as UK OfCom orSpanish UNE.10) When some results show a significant deviation from the accepted norms,further tests will be created under laboratory control and methodology.Number of users: 5 blind users as a qualified control group. Otherwise, the number ofusers is unknown because it will be the users associations that will be contacted andwho will agree with TVC the format of tests.Name of users associations: ONCE and Asociació Catalana de CecsThe model of AD services in TVCThe workflow for the production of Audio Description (AD) is similar to that forsubtitling. TVC has developed with the collaboration of an external SME (AnglatecnicS.L., Barcelona) the necessary software for the production of AD.The programs to be audio described are copied to MPEG 4, with time code, andaccompanied with the text dialogue script and sent to the recording operators-editors ofaudio commentaries and speakers (they are the same person). Such workers are oftenexperienced operators of subtitling. They have passed a selection for voice quality and atraining period on operation. There are continuous discussions about the style of thedescriptions, for example, when there are several things to describe about what thepriorities are.In the last auditions of the material, the operator gives a value for the volume of audiodescription in relation to the loudness of the soundtrack of the program. The possiblelevels of the soundtrack can be attenuated giving several fixed levels. The experienceuntil now has lead to do a broadcaster mix with 3 levels of the soundtrack: noattenuation, 1.5 Db of attenuation, and 3 Db of attenuation. Audio Description remainsat a fixed level. This is the current practice. In the past TVC assessed 3 Db and 6 dBattenuations. This is not discount implementing more levels of attenuation for the tests,or measuring continuously the loudness level of the soundtrack (Dolby LM 100) andusing this data for the control of the soundtrack volume in relation to the AD signal toensure the intelligibility of the AD in a more accurate way.The result of the production of audio description is a compressed file containing: The audio descriptions (a long list of MP3 audio files)The time-code points where the descriptions are to be broadcast on airThe volume value for each piece of descriptionThe metadata descriptive of program title, number of ident for archive purposes,etc.Page 21
Page 1 and 2: COMPETITIVENESS AND INNOVATION FRAM
Page 3 and 4: 1 Executive SummaryThis report cove
Page 5 and 6: Gaps in knowledge of the efficacy o
Page 7 and 8: 3 What was originally planned3.1 Br
Page 9 and 10: 3.1.2 RBBRBB planned to test both D
Page 11 and 12: · Position· Subtitles may appear
Page 13 and 14: · Context information through icon
Page 15 and 16: 4 What has been done to date4.1 Bro
Page 17 and 18: DVB-Subtitles Test-MethodThe techno
Page 19: Explanations:Each of the five selec
Page 23 and 24: 4.2 Universities and the mature acc
Page 25 and 26: 5 Preliminary Findings5.1 Broadcast
Page 27 and 28: Problems with subtitle trans-coding
Page 29 and 30: The negative comments mainly covere
Page 31 and 32: 6 Preliminary ConclusionsAt the tim
Page 33 and 34: 8 Appendix 1 Design document for DR
Page 35 and 36: expectancy increases and the elderl
Page 37 and 38: . Self-assessment of capability usi
Page 39 and 40: 9 Appendix 2 Questionnaires1- Sampl
Page 41 and 42: □ Assistive device (wireless / in
Page 43 and 44: □ To have information on what typ
Page 45 and 46: ☐ TV ☐ TV digital ☐ Ordenador
Page 47 and 48: h. Cuando hay sonidos, ¿cómo pref
Page 49 and 50: Catalan sitcoms Plats Bruts —late
Page 51 and 52: WP 2.4 Implementation of Pilot Eval
Page 53 and 54: Dissemination: Results to be presen
Page 55 and 56: Audio description / audio subtitlin

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