When More is More in Sound Design

Beyond the thin beep

A pure sine beep does its job: it gets attention. Yet it is abstract. It carries no link to the listener’s past, no sense of materiality, no resonance with the world outside the device. Contrast this with a resonant chime or a warm wooden strike. These are still short cues, but they feel grounded because they connect with sounds people have heard before, such as bells, instruments, doors closing, or clocks striking.

The richness here is not about extra information. It is about connection. A fuller cue engages memory, culture, and embodied experience. It can reassure, humanise, or simply make the listener more willing to trust what they are hearing.

Why resonance matters

Sound does not exist in isolation. Every listener brings a lifetime of sonic experiences with them. When a cue has depth, it has more hooks to catch on those prior experiences. A thin beep might be noticed, but a resonant tone is remembered.

This difference can matter deeply. In healthcare, equipment that relies on thin electronic beeps is effective at grabbing attention, but it can also heighten stress. Staff talk of “alarm fatigue”, a numbing effect when countless devices are constantly beeping. Some designers have begun exploring fuller, harmonically rich alarms that still cut through but feel less alien and more sustainable in daily use. These cues preserve urgency while reducing emotional strain.

A thin beep might be noticed, but a resonant tone is remembered

Transport systems tell a similar story. Many metro networks use distinctive door-closing chimes. Passengers remember them not just as functional warnings, but as part of the identity of the city. Compare this with a flat buzz that signals only “hurry up”. One sound demands action; the other leaves an impression.

Consumer technology shows the same principle. Notification sounds on phones once tended to be single pings. Now many use layered tones with subtle overtones. These are still short, but they feel crafted. They suggest elegance, warmth, or playfulness depending on the design. The difference is not in the duration, but in the richness packed into a single moment.

The lesson of auditory icons

This is also why auditory icons can be so effective. They borrow directly from sounds that already exist in the world, such as paper rustling for deletion or a door closing for exit. When authentic, they carry the depth and resonance of lived experience, which makes them immediately meaningful. The danger is when they are reduced to caricatures or simplified to the point of thinness. If they lose their natural richness, they become just as abstract as a synthetic beep, and the connection with memory and emotion is broken.

Technical resilience of richer sounds

There is also a practical reason to favour richness. A thin, single-frequency beep is highly vulnerable to masking and distortion. If another sound overlaps its frequency, it can disappear entirely. If played through a poor-quality speaker, it may become inaudible. A richer sound, by contrast, has harmonic spread and textural variation. Even if some partials are masked, others survive. The shape of its attack and decay creates perceptual redundancy, giving the ear multiple cues to grab hold of. Our auditory system evolved to recognise resonant, naturalistic sounds even in noisy conditions, which makes them far more robust.

A thin, single-frequency beep is highly vulnerable to masking and distortion. If another sound overlaps its frequency, it can disappear entirely

This means richness is not only an aesthetic choice. It can also be a matter of resilience. A sound with depth has a better chance of surviving both difficult acoustic environments and poor reproduction technologies.

 

Cultural and emotional variation

Rich sounds do not operate as universals. What resonates for one listener may feel unfamiliar to another. This is not a weakness but a strength. A cue that carries detail and texture offers two possible pathways to engagement. For some, it instantly evokes emotions or actions because it recalls familiar experiences. For others, it prompts curiosity and questioning, which is itself a form of engagement.

The key is intentionality. Sounds should not be rich for their own sake

The key is intentionality. Sounds should not be rich for their own sake. They should be rich because they belong in the design context and because they respect the needs of those who will hear them. A resonant tone can reassure, a layered chime can invite recognition, and in some cases an unfamiliar sound can even challenge attention by making the listener pause and interpret. What matters is that the cue has enough detail to either connect immediately or to reward interpretation the first time it is heard.

Richness as interpretation, belonging, and localisation

One of the strengths of richer sounds is that they support both bottom-up and top-down listening. Top-down recognition occurs when a sound resonates with memory: a layered chime recalls bells or clocks, and the listener knows instantly what it suggests. Bottom-up interpretation happens when the sound is unfamiliar but detailed enough to be analysed on the spot. Harmonics, texture, and dynamics give the ear material to work with, so the sound can be understood even without prior experience.

Harmonics, texture, and dynamics give the ear material to work with, so the sound can be understood even without prior experience

This dual pathway matters because it frees sound design from relying only on memory matches. A thin beep is all or nothing: either you know what it means, or you do not. A rich sound, by contrast, can either connect immediately or offer cues that help a first-time listener build understanding.

Richness also increases the chance that a sound will belong acoustically to its environment. A fuller tone interacts with reverberation, reflections, and masking in ways that make it feel more natural within a space. Listeners hear not only the direct sound but also how it settles into its surroundings. A thin synthetic beep often feels imposed and out of place, whereas a resonant tone can feel grounded, as though it belongs to the context rather than fighting against it.

A fuller tone interacts with reverberation, reflections, and masking in ways that make it feel more natural within a space

A further benefit is localisation. Pure tones, especially in the mid-frequency range, are notoriously difficult to place because they offer few spatial cues. Rich sounds, by contrast, carry multiple harmonics and textural variations. These provide the auditory system with more information to compare across the ears, improving direction finding. Environmental reflections add further cues, helping the listener place the sound more precisely. In practice this means richer cues are not only more meaningful but also easier to locate, which is crucial in safety and navigation contexts.

Belongingness and nuanced response

Richness also affects whether a sound feels like it belongs in its context. When a cue fits the environment, it feels natural and trustworthy, often without the listener even noticing it. When it does not fit, it can create unease. A synthetic beep in a domestic setting, for example, may feel intrusive because it does not belong to that space. This mismatch can trigger a subtle fight-or-flight response, even when the listener cannot articulate why.

Richness expands the response spectrum. It gives the listener space for nuance, allowing them to calibrate whether to act immediately, to proceed carefully, or simply to pay closer attention.

Richness helps here because it provides more cues for judgement. A fuller sound can communicate not just that something has happened, but how the listener should interpret it. A thin beep reduces response to a simple binary: ignore or react with urgency. A resonant tone with layered harmonics, by contrast, can suggest urgency without panic, encouraging caution rather than alarm. A sound with a slight roughness might indicate that something is wrong but still under control.

In this way, richness expands the response spectrum. It gives the listener space for nuance, allowing them to calibrate whether to act immediately, to proceed carefully, or simply to pay closer attention. Belongingness and variation within the sound work together to support a richer understanding of context, so the listener does not only react but also interpret.

Not a contradiction

“Less is more” and “more is more” are not competing slogans. They speak to different aspects of design. “Less is more” reduces overload by keeping the number of cues small. “More is more” strengthens meaning by enriching the sound itself. Together, they remind us that clarity and resonance must work hand in hand.

“‘Less is more’ reduces overload by keeping the number of cues small. ‘More is more’ strengthens meaning by enriching the sound itself

A principle across all sound design

These ideas are not confined to one corner of design practice. Richness matters wherever sound is used. In film and games, it gives audio its emotional weight and sense of ecological believability. In augmented and virtual reality, it anchors virtual cues in the physical environment so that they feel present rather than artificial. In UX and product design, it helps notifications survive masking, sit naturally within a space, and feel trustworthy rather than intrusive. In safety and navigation, it sharpens localisation and allows for graded urgency instead of blunt alarms.

Across all of these contexts, the principle is the same. A thin sound may be noticed, but a rich sound is remembered, interpreted, and trusted. It either belongs to the world as the listener knows it, or it provides enough variation for the listener to build meaning from it the first time they hear it. That is why richness is not a decorative addition, but a foundation for designing sounds that connect.