Abstract
Binaural hearing aids consist of two hearing devices, one for each ear. A new concept of binaural hearing aids is proposed, in which only the master hearing aid contains a Bluetooth chip for receiving stereo audio signals from an external device, and the signal in one channel is sent to the slave hearing aid from the master by a 2.4-GHz Gaussian frequency-shift keying (GFSK) RF transmission method to create the binaural hearing effect. However, a problem arises in regard to the processing necessary for the signal transmission and reception in the two hearing aids, which creates a time delay that causes the precedence effect. Therefore, an audio delay processing algorithm has been designed in the master hearing aid to synchronize with the sound output of the slave hearing aid. Experimental results show that the time difference between the two hearing aids is about 8 μs, which is effective for avoiding the precedence effect.
| Original language | English |
|---|---|
| Pages (from-to) | 566-568 |
| Number of pages | 3 |
| Journal | IEEJ Transactions on Electrical and Electronic Engineering |
| Volume | 9 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 2014 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- 2.4-GHz GFSK RF method
- Binaural hearing aids
- Latency
- Synchronization
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