DAB Checklist and priorites
Contents
1. off Different levels of voice output can be selected by the user eg voice output can be set to basic output only through to full menu output via voice and additionally detailed usage instructions via voice can be selected when wanted by the user The speed of voice output can be adjusted The voice used by the voice output can be selected by the user from a variety of voice options The voice used by the voice output can be customised by the user ie the user can record their own voice tags Basic tasks Basic tasks Switching on The power on standby button is distinguishable from the other buttons because it is either larger and or positioned in a predictable location top bottom corners and or is positioned noticeably farther away from any other buttons or clusters of buttons The power on standby button is labelled on on off and or uses the internationally recognised standby symbol The button label is closer to its respective button than any other button the label is not equidistant between buttons The receiver returns to its last used state when turned on after first use The receiver includes a home button to immediately return the user to listening to the last listened to radio station if the user gets lost in menus 107 9 Priorities for accessible and usable DAB radios Basic tasks First time tuning C6 Radio default factory setting is to DAB at first use if FM is al2. user is exploring the equipment by touch Any navigation type keys arrows up down left and right are 3 shaped consistent with their function eg triangular points B7 Any toggle button switches between only two states e g voice 2 output on voice output off than those that operate less frequently used advanced Buttons to operate the most frequently used basic operations 1 power on off standby volume up down station up down are more distinctive using larger size unique shape and or texture operations B3 B5 B8 B Button grouping and spacing B11 No two buttons are so close in proximity that pressing one button 1 results in the simultaneous pressing of another No button relies solely on colour to make it distinctive B13 There is variation in size and shape of buttons across 1 functional groups B14 Spaces within and between functional groupings enable users to Dial controls that operate any function use tactile markers to 2 indicate lowest and highest position and current position of the dial and or use haptic or auditory clicks as they scroll through positions 10 Buttons controls are rear lit illuminated from behind to ease 2 A G identify and navigate functional groupings by touch 105 9 Priorities for accessible and usable DAB radios Button labels a B15 Button labels contrast strongly against the background colour B16 Button labels use lower case text 2 B17 Button labels use sans se
3. 9 Priorities for accessible and usable DAB radios DAB checklist and priority levels 1 is high 2 is medium 3 is low Installation All package contents besides the radio itself eg A C cable paper and other documents that accompany the product such as guarantees instructions CDs are contained within a plastic wallet with the main product Electronic alternative formats of paper based instructions eg audio url link are available online i a A3 User is informed that at least one alternative format other than paper based instructions is included within packaging eg large print CD braille audio tape formats and others are available on request A4 At least one form of an instructions manual in plain English is present ideally clear print paper copy tape cassette CD A5 Installation instructions are presented in words and pictures Standard paper based installation instructions that use both text a ca and picture format can benefit partially sighted people and those with dyslexia who may need to use them Installation instructions are only for the specific model which they accompany Installation instructions are in users local language Installation steps follow a logical order buttons on the hardware and remote control where present A9 Regardless of the format they are presented in instructions are provided that enable the user to identify the functions of various 103 9 Priorities for acce
4. Advanced tasks other eg navigating menus in 2 The equipment supports voice output of its menus No other specific suggestions at present beyond standard buttons identification and manipulation and voice output elements above 109
5. e s is are incorporated to keep users informed 2 during delays in feedback eg instant audio feedback when user has activated a station switch especially to a station on a different multiplex to fill the delay gap examples may include beeps white 108 9 Priorities for accessible and usable DAB radios The volume increase decrease buttons should be labelled volume vol or v with or up and or down to indicate direction The volume increase decrease buttons have tactile markings or tactile labels not braille as this is only understood by a minority Advanced tasks a Advanced tasks setting presets D1 Equipment has a function that automatically sets presets Possibly via a simple process for storing presets on a store as preset or do not store as preset basis for available stations ae Advanced tasks pausing The equipment supports voice output of its pausing functions and menus ae Advanced tasks recording The equipment supports voice output of its recording functions and menus No other specific suggestions at present beyond standard buttons identification and manipulation and voice output elements above Advanced tasks using EPG m 3 The equipment supports voice output of Electronic Programme Guide content No other specific suggestions at present beyond standard buttons identification and manipulation and voice output elements above
6. rif fonts ie those without details at the 2 extremities of characters B18 Button labels are positioned unambiguously in relation to their respective button either on the button or closer to their target button than to any other button B19 All button labels are intuitive and unambiguous The function of all buttons is made clear from the user manual Electronic text display The electronic text display uses strongly contrasting light text 1 against dark background User is able to reverse the colour scheme on the electronic text 2 display B23 The electronic text display minimises the use of scrolling flashing 2 text of which the movement can not be controlled by the user B20 B21 22 B Notes It is likely that less text movement will be required when the electronic text display is larger 00 N gt The electronic text display uses sans serif text of as large a size as 1 feasible given display constraints wewa ooo Voice output is included as a feedback option A voice output interface is used to communicate information carried on the electronic text display Where voice output is provided the default setting is for the voice 2 output to be active Voice output uses full words rather than spelling out words Voice output sounds like a real person s voice B25 B26 B27 B28 29 B 106 B30 B31 B32 B33 9 Priorities for accessible and usable DAB radios Voice output can be toggled on or
7. so 1 available C7 C2b A method of switching between DAB and any analogue 2 states is used that does not rely on a toggle C8 When a user switches between DAB and any analogue states appropriate feedback is provided eg voice output beeps suggestions from short preference survey Radio default factory setting is to auto tune at first use ae Basic tasks Changing radio station el If numeric keys 1 9 are used they should be positioned in 3 rows of numbers with 1 at the top left and 9 at the bottom right The 0 zero key should be on an additional row beneath these three rows underneath the 8 button A number 5 button should have a raised nib as an identifier consistent with the European Telecommunications Standards Institute ETSI standard for tactile identifiers ES 201 381 noise voice message indicating station change in progress Design feature s is are incorporated to provide feedback when a user has pressed a button that will result in a station change this type of feedback being unique to this function User manual instructions and voice output where present must specify whether a user needs to press a button depress a knob to select a channel whose position has been navigated to a Basic tasks Changing volume If two buttons are used to change volume the volume increase button should be positioned above or to the right of the volume decrease button Design featur
8. ssible and usable DAB radios S Basic connections physical set up BN All redundant holes on product are covered limiting the number of ports which might be thought of as connection ports to those required for full use of the product It is not possible to insert incorrect cables connectors into any 2 sockets on the hardware Notes In interview trials with unfamiliar radio equipment we observed participants attempting to connect the A C cable to any feasible hole on the product via trial and error A12 The aerial can be released from its resting position and 2 extended with ease 104 If a battery panel is present a tactile means is provided for users to locate the battery panel guides If a battery panel is present a tactile means is provided for users to identify correct orientation for inserting batteries General characteristics and use General The combination of the finish and the material from which the radio hardware is made of does not produce glare in the range of normal lighting conditions eg shiny metallic The radio hardware designed so that when a user presses any button s on the radio s front the radio does not fall over 9 Priorities for accessible and usable DAB radios Button characteristics All buttons elicit a clear haptic touch click when pressed All buttons elicit an audible click when pressed No buttons are overly sensitive to the extent that they are 1 accidentally pressed when a
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