Good device sounds should be satisfying and designed to prompt action without causing stress or annoyance.
Redesigning the sound of credit card readers can change user behavior without annoyance and guide users without negatively impacting their cognitive function.
Deep dives
Designing Device Sounds
Designing device sounds is important for user experience. Good device sounds are satisfying, while bad ones can cause stress. The attributes of a sound, such as its quality and familiarity, play a role in how it is perceived. The sound of a ringing telephone can be annoying due to associations with interrupted sleep. Devices can be designed to prompt action without causing stress or annoyance. Skeomorphism, where sounds mimic real-world actions, can effectively communicate functionality to users.
Reimagining Credit Card Reader Sounds
The sound of credit card readers can be annoying and tiring for store employees and shoppers alike. By redesigning the sound, the behavior of users can be changed without annoyance. The warning tone can be broken down into warm, attention-grabbing, and fuller sounds. The redesigned sound prompts action without causing undue stress or irritation. Thoughtful sound design can guide users without negatively impacting their cognitive function.
Sound Design for Waymo Cars
Silent electric cars require artificial sounds to ensure pedestrian safety. Designing a sound that matches the aesthetic of the car and is appealing to listeners is a challenge. By using a progression of notes that mimics car acceleration and selecting harmonics that create a pleasant feel, a friendly and identifiable sound can be created. Sound design should be used sparingly, using only what is necessary to enhance the user experience.
We live in a designed world, and alert tones are no exception. Every beep and ping that your phone or laptop makes probably went through multiple rounds of revisions and approvals. So what separates a good device sound from a bad one? This story comes from the Wireframe podcast, and features sound designer Connor Moore and psychoacoustic expert Susan Rogers.