iCons are visual symbols that represent information such as an app, an object (such as a file), or a function (such as the command to save). Users who are visually impaired, rely on screen readers to announce the information that is conveyed with an iCon. What does a gear symbol mean? A magnifying glass? an envelope? (Settings, Search, Mail).
Earcons are designated sounds which convey a specific event or item. You hear a soft ping and instantly pull out your phone to check your messages. Without the use of words, everyone automatically knows that the ping is the universal sound that means a new message has arrived. What other sounds does your tech use to convey information? What about the 'whoosh' sound or that alarming beep? (sent email, error message beep) How about the click when you type a character using the onscreen keyboard? Mainstream operating systems for computers, tablets and smart phones all use earcons. Most people recognize and use these earcons subconsciously, without knowing the term 'earcon' and without specific instruction about earcons.
Screen readers have additional earcons that play a crucial role for users who are visually impaired. These earcons alert the user to what is happening on the screen. Using a brief sound, earcons can provide detailed information in a very quick and subtle format. The earcon conveys this information without interfering with a screen reader announcement and is not impacted by the speech rate of the screen reader. Since Earcons should be introduced early - as the student is first being introduced to a screen reader - this post will focus on iOS VoiceOver earcons. However, the same principles apply to any device and screen reader.
Settings for Earcons
Earcon volume can be adjusted. To unmute or raise the volume of earcons, go to:
Settings > Sounds > and under ringer and alerts - Change with Buttons. Toggle Change of Buttons On then increase the slider (move to the right).
Typically, 75% is used when teaching students to use earcons. Once the desired earcon volume is set, toggle of Change with Buttons. You can lower the earcon volume after the student becomes proficient with earcons, if desired. Change with Buttons will adjust the volume of all earcons - mainstream earcons such as a message alert as well as VoiceOver earcons.
Note: Earcon volume is different than the music volume, other app-related volume, and VoiceOver Volume.
In iOS 12, when the Change with Buttons is toggle On and you use the physical volume button located on the top left edge of the iPad, the earcon volume WILL adjust when using the physical volume controls. If the Change with Buttons is toggle Off, the earcon volume will NOT adjust when using the physical volume controls. Note: The Change of Buttons has different results in different iOS versions. When using the physical buttons to adjust the volume, an image of either a speaker icon or a bell icon briefly appears. The bell icon indicates that the earcon and other alerts is also being adjusted; the speaker icon indicates that only the standard app volume and VoiceOver volume is being adjusted.
If earcons are not heard, check that Mute Sound Effects is toggled Off. Turning this toggle On will mute earcon sounds.
Settings > General > Accessibility > VoiceOver > Audio > Mute Sound Effects (Off)
VoiceOver Earcons on the Home Page Activity
On the Home screen with VoiceOver running, ask your student to initially mute VoiceOver in order to focus their attention on the earcons. Once the student becomes more aware of the earcons, unmute VoiceOver. Below is a list of earcons and the gesture used to make the earcon.
To hear just the VoiceOver earcon without VoiceOver talking, mute VoiceOver with a three-finger double tap. (If VoiceOver and Zoom is activated, use a three-finger triple tap to mute/unmute VoiceOver speech.
Note: Some of these sounds are challenging to describe with words! It might be easier to mimic the earcon when working with students!
- Click: Right or left swipe to navigate to next or previous app
- Ascending double-tone (lower pitch): Right swipe to next row of apps
- Descending double-tone (lower pitch): Left swipe to previous row of apps
- Thunk: When on the last app, right swipe. Thunk indicates the end (think of hitting a wall). When on the first app, left swipe.
- Ascending and tone: Right swipe from page number to dock.
- Duh,duh,duh: Drag figner in open space
- Beep, ascending tone (higher pitch): Open an app
- Click double beep (higher pitch): When in an app, pressing the Home button to go back to the Home page.
- Ascending tone (higher pitch): three-finger swipe right or left to next or previous Home page
- Ascending Triple tone (lower pitch): Double tap and hold (to move app or to delete app)
The next video is auditory only. Listen to the earcons - can you identify what each sound represents?