Mimuw hci2021-9
- 2. Sound = more information additional sense
- 3. Properties of sound / hearing — “volatile” medium (disappears) — strain on memory — not selective (less control of the user) — di ff icult to consume simultaneously — slower than vision — non-directional
- 4. Variables — can vary in a number of dimensions — pitch (or frequency) — timbre (or musical tone) — intensity (or loudness)
- 5. Types of sound — musical (tonal) — voice — abstract — skeuomorphic — ambient
- 6. Sound in UI — alert — noti fi cation — feedback — brand image — decoration — narrative — navigation — input — search — commands
- 7. Downsides 1. performance 2. distraction 3. sensory overload 4. bugs!
- 8. Downsides Only 5% of voice search users report never experiencing frustration using the technology
- 9. Downsides Nearly 64% have accidentally accessed a voice assistant in the last month
- 10. Downsides Voice search results yield only one response
- 11. WCAG If any audio on a Web page plays automatically for more than 3 seconds, either a mechanism is available to pause or stop the audio, or a mechanism is available to control audio volume independently from the overall system volume level.
- 12. Designing sound
- 13. Ground rules — don’t distract — choose the right sound — limit the number of sounds played at one time — “Do I really need a sound here?”
- 14. Sound “roles” — Brand sounds — Hero sounds — Celebration moments — Alerts and noti fi cations — Ringtones and alarms Noti fi cations — Primary UX sounds — Secondary UX sounds