Headphones for Eight Hours of Calls: Three Pairs Compared by Wear
Three pairs of headphones were worn for eight hours a day across four weeks each, and the pair with the worst sound was the pair that got worn longest. Comfort, not audio quality, decided it.
The comparison used a closed-back pair at 180 euros, an open-back pair at 240 euros and a pair with a boom microphone at 95 euros. All three were worn by the same person doing the same work: three calls a day and five hours of writing.
What was measured
Four things were recorded at the end of each day: whether the headset was still on at 17:00, any pressure point noted during the day, how often the microphone had to be repositioned, and whether the person had chosen to listen to music while writing.
Audio quality was assessed once, at the start, with three reference recordings. After that it was ignored, because it did not change.
The closed pair
Clamping force was high enough to be noticeable after two hours. The ear pads warmed to the point of discomfort by the afternoon in a room at 23 degrees. The headset came off for an average of 40 minutes a day, always in the afternoon.
Isolation was excellent, which mattered on the three days a week when a neighbour’s building work was audible.
The open pair
Comfort was the best of the three: light, no clamping, and the ears stayed cool. The problem was that open-back headphones leak in both directions, so a colleague on a call could hear the room and the wearer could hear the room.
Two calls in the first week required an apology for background noise. That is a small number and it is the kind of thing that damages a working relationship once.
The boom microphone pair
Cheapest of the three and the only one designed for speech. Sound quality for music was poor, with almost no low end. The microphone, however, was the only one of the three that callers never complained about.
It stayed on all day. The padding was thin and the headband was plastic, and it was still the pair worn at 17:00 on 19 of 20 working days.
Why comfort won
A headset that comes off is a headset that is not used, and a person who removes a headset for forty minutes a day misses calls or takes them on speaker, which is worse for everyone. The measurable cost of discomfort was 40 minutes of audio quality per day.
This is obvious once stated and is almost never stated.
The microphone finding
Callers rated intelligibility, not fidelity. The cheap boom microphone scored highest on the only question that matters to a listener: can I understand this sentence the first time. The expensive pair’s built-in microphones picked up room reflections from a metre away, which reads as distance and indistinctness.
Two of the three pairs were designed for listening. Only one was designed for talking, and the work was talking.
What the person kept
The boom microphone pair for calls and the open pair for music and writing. Total cost 335 euros, and the closed pair was sold. The split works because the tasks are genuinely different and the switching is trivial.
If only one pair were allowed, it would be the cheap one. That answer surprised the person who commissioned the test and is the reason the test was worth doing.
Four weeks on
Call complaints dropped to zero. The open pair is used about three hours a day and the boom pair about four, and neither has been removed for comfort in the last month.
Three pairs were compared on sound and one won on being worn for eight hours. The microphone nobody praised is the one that ended the complaints, and it cost the least.
