For many commuters, the soundtrack of a bus or train journey no longer comes from the vehicle itself but from fellow passengers’ smartphones. Whether it is a video playing without headphones or a conversation held on loudspeaker, these sounds have become an increasingly common feature of public transport and other shared spaces.
The experience is familiar to anyone who regularly travels through busy cities. A passenger scrolling through social media with the volume turned up or someone conducting a speakerphone conversation can quickly fill an otherwise quiet carriage with unwanted noise.
While many people still find the habit irritating, researchers suggest that society’s response may be changing. Instead of reacting with the same level of annoyance every time, repeated exposure could gradually make the behavior feel more ordinary, even if it remains unwelcome.
How repeated exposure changes perception
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Psychologists have long observed a phenomenon known as habituation, in which people become less responsive to repeated stimuli over time. Applied to public smartphone use, the theory suggests that frequent encounters with loudspeaker audio may eventually blend into the background for many people rather than constantly demanding attention.
That does not necessarily mean people approve of the behavior. Instead, it reflects how the human brain adapts to recurring experiences, allowing individuals to filter out distractions that cannot easily be controlled.
This process has been observed with other aspects of urban life, including traffic noise and crowded environments, where sounds that initially seem intrusive become less noticeable after prolonged exposure.
Smartphones have changed expectations in shared spaces
The growth of smartphones has transformed how people consume media and communicate while on the move. Short-form videos, livestreams, voice messages and hands-free calls are now part of everyday routines, increasing the likelihood that audio spills into public settings.
Wireless earbuds and headphones remain widely available, yet not everyone chooses to use them. In some cases, users may simply be unaware of how much sound escapes their devices. Others may place greater value on convenience than on maintaining a quieter environment.
The result is an ongoing tension between personal technology use and the expectations of those sharing the same public space.
Why the issue matters
The discussion extends beyond simple etiquette. Public transport operators, workplaces and community spaces all depend on a degree of mutual consideration to create comfortable environments for everyone.
Changing social norms often develop gradually. Behaviors that were once widely viewed as unacceptable can become commonplace if they occur frequently enough and receive little social pushback. At the same time, many passengers continue to express frustration with loudspeaker phone use, suggesting expectations around courtesy remain far from settled.
What happens next?
As smartphones continue to evolve and media consumption increasingly takes place on mobile devices, public conversations about digital etiquette are unlikely to disappear.
Whether loudspeaker use ultimately becomes just another part of everyday background noise or remains a source of debate will depend on how social expectations continue to evolve. For now, the simple act of using headphones remains one of the easiest ways to balance personal convenience with consideration for those nearby.
