TL;DR: A 2026 crossover trial in Journal of Korean Medical Science found hearing aids outperformed PSAPs over 3 months, especially for high-frequency speech clarity, speech-in-noise, and continued device use.
Key Findings
- Only hearing aids improved 4,000–6,000 Hz hearing: Both device classes helped 250–3,000 Hz, but the high frequencies that carry consonants — “s,” “f,” “th” — only improved with hearing aids.
- Word recognition: 80.4% (HA) vs. 72.6% (PSAP) vs. 53.0% unaided: Both helped, but hearing aids kept a clear edge even before noise entered the picture.
- ~5 dB advantage in noise: Hearing in Noise Test threshold −18.9 dB with hearing aids vs. −13.9 dB with PSAPs — the difference between tolerating a noisy restaurant and giving up on conversation.
- Dropout doubled with PSAPs: 28.3% withdrew during PSAP use vs. 14.3% during hearing-aid use — daily-life evidence that the cheaper devices were harder to live with.
- 76.7% would recommend hearing aids to family: Satisfaction questionnaires (APHAB, IOI-HA) and custom surveys all leaned toward hearing aids; PSAP tiers did not meaningfully separate from each other.
- Premium > basic hearing aids > both PSAP tiers: Spending more inside the PSAP category did not buy a convincing jump toward hearing-aid performance.
Source: Journal of Korean Medical Science (2026) | Han et al.
Hearing aids performed best where age-related hearing loss often causes practical disability: high-frequency speech detail and noisy rooms.
Those listening conditions are closer to daily communication problems than quiet pure-tone thresholds alone.
PSAPs Tempt Hearing Loss Patients but Struggle in Speech-in-Noise
The appeal of personal sound amplification products (PSAPs) is obvious. They cost far less than prescription hearing aids, they are easier to buy, and they promise a shortcut for people who know they are missing speech but are not ready for a full audiology workflow.
The problem is that making sound louder is not the same as improving hearing in noisy, high-frequency speech conditions. Most adults with age-related or noise-related hearing loss are trying to understand speech in complex environments.
They are asking whether they can follow fast speech, pick out consonants, and survive a loud dinner table. That is the target this Korean multicenter crossover trial tested.
73 Patients Completed Hearing Aid and PSAP Crossover Testing
117 participants were randomized; 73 completed enough of the protocol for analysis. This was not a one-visit gadget comparison. Patients used one device for a full 3 months, then crossed over to the other — giving the researchers a realistic view of daily use over time, not just spec-sheet performance.
The cohort had sensorineural hearing loss, mean age 58.1, with a mix of unilateral and bilateral users. The trial compared subtypes too: premium and basic hearing aids, plus higher-end and basic PSAPs.
The answer to “is the cheaper category close enough?” depends heavily on which outcome you care about.
- Basic tone detection: both device classes helped at lower and mid frequencies.
- High-frequency speech detail: hearing aids separated from PSAPs.
- Noisy listening: hearing aids kept the clearer advantage on the outcome patients notice most.
Once the study moved from “can you detect the tone?” to “can you actually handle speech?” the gap widened fast.

Hearing Aids Outperformed PSAPs on Speech Recognition
Both PSAPs and hearing aids significantly improved thresholds from 250 to 3,000 Hz. That is the part of the paper that could mislead a casual reader into thinking the cheap devices were close enough. The crucial frequencies for crisp speech perception live higher.
At 4,000 and 6,000 Hz, only hearing aids delivered significant improvement. Premium hearing aids led from 2,000–6,000 Hz; even basic hearing aids beat both PSAP categories in the high-frequency range.
Those upper frequencies matter because they carry the edges of speech — “s,” “f,” “th,” and other consonant information that causes words separable rather than muddy. This helps explain why people can describe amplification as “loud enough” and still feel lost in conversation. A device can raise overall volume without restoring the high-frequency detail needed to decode speech rapidly.
Speech-in-Noise Testing Separated Hearing Aids From PSAPs
The intuitive numbers are the speech scores. Unaided word recognition sat at 53.0%.
With PSAPs: 72.6%. With hearing aids: 80.4%. Both helped; hearing aids kept a clear edge.
The cleaner result came from the Hearing in Noise Test. PSAP users averaged about −13.9 dB; hearing-aid users reached −18.9 dB.
In plain language, hearing-aid users could understand speech with substantially more background noise crowding the finding. The device hierarchy was clear: premium hearing aids led, basic hearing aids still beat both PSAP tiers, and PSAP tiers did not meaningfully separate from each other.
That is the difference between tolerating quiet one-on-one conversation and still functioning at a café or family event — and spending more inside the PSAP category did not buy a meaningful jump toward hearing-aid performance.
More PSAP Users Dropped Out During the Crossover Trial
Hearing research can get trapped in threshold charts, but patients live in behavior. The satisfaction findings help explain why.
Standardized questionnaires (APHAB, IOI-HA) and custom surveys all favored hearing aids. 76.7% of participants said they would recommend hearing aids to a neighbor or family member with hearing loss.
The dropout numbers reinforced that. During the crossover, 28.3% of participants withdrew while using PSAPs vs.
14.3% during hearing-aid use. That is not a side note. A device that looks acceptable on a spec sheet but gets abandoned in daily life is not a serious rehabilitation solution for many people.
Hearing Aids Beat PSAPs for Budget Speech-in-Noise Decisions
This paper does not say PSAPs are useless. They improved hearing thresholds and speech scores compared with going unaided, which matters for people locked out of hearing care by cost. If the real-world choice is PSAP versus nothing, the devices can still offer meaningful benefit.
What the trial does say is more specific: PSAPs did not match hearing aids on the hardest, most socially important parts of listening. They lagged at high frequencies, trailed on speech in noise, and left users less satisfied over time.
For people mainly struggling in quiet settings or needing a temporary affordability bridge, PSAPs may be better than silence. For anyone whose main complaint is “I can hear people talking, I just can’t make out the words,” this study suggests the cheaper shortcut still misses the part of hearing loss that hurts most.
The larger policy implication sits underneath all of this. People keep reaching for PSAPs because hearing aids remain too expensive and too hard to access.
The better policy answer is not pretending the devices are equivalent. It is making the better technology easier to get.
Citation: DOI: 10.3346/jkms.2026.41.e131; Han et al; Comparison of the hearing benefits and user satisfaction with hearing aids and personal sound amplification products: a multicenter prospective randomized crossover trial; Journal of Korean Medical Science; 2026;41(15):e131.
Study Design: Multicenter prospective randomized crossover trial — 3 months per device, both directions.
Sample Size: 117 randomized, 73 analyzed; mean age 58.1; sensorineural hearing loss; premium and basic hearing aids vs. higher-end and basic PSAPs.
Key Statistic: Word recognition 80.4% (HA) vs 72.6% (PSAP) vs 53.0% unaided. Speech-in-noise threshold −18.9 dB vs −13.9 dB. Dropout 14.3% (HA) vs 28.3% (PSAP). 76.7% would recommend HA to family.
Caveat: Single-country cohort, moderate sample size, 3-month device acclimation per arm; longer-term satisfaction not directly measured.






