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   Counterpoint: Nearly half of prescription hearing aids to have on-device AI by 2030

   A Counterpoint report on global on-device AI wearables forecasts that worldwide prescription hearing aid sales will exceed 31 million units by 2030, a 4% CAGR from 2025 to 2030, with nearly 50% of those devices carrying on-device AI. The report argues that traditional digital signal processing relies on preset rules and struggles in crowded settings with multiple speakers, whereas deep neural networks trained on millions of voice-and-noise samples can separate speech from noise in real time and preserve fine phonetic cues such as "s", "f" and "th" or easily confused numbers like fifteen and fifty. According to Phonak testing cited in the report, fixed directional microphones with conventional settings improve signal-to-noise ratio by 6.4 dB over omnidirectional mics, while adding AI noise reduction raises that to 9 dB by default and up to 10.2 dB at maximum; however, continuous neural network processing costs battery life — Phonak's 2025 Audéo Infinio Ultra Sphere lasts 56 hours normally but drops to 10 hours with AI always on — and hearing aids require end-to-end latency of 10 milliseconds or less, so the AI must run locally.

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