| Title |
Hybrid Wireless Earphone System Using Complex Auditory Compensation Filter |
| Authors |
김현갑(Hyun-Kab Kim) ; 이종설(Jongseol Lee) ; 김주일(Jooil Kim) ; 김규식(Gyu-Sik Kim) |
| DOI |
https://doi.org/10.5573/ieie.2020.57.7.59 |
| Keywords |
Acoustic Control; Signal Processing; Mobile System; Electronic Control; Earphones |
| Abstract |
The study of improvements in clarity to the existing noise environment was focused on total volume control in noise engineering fields. However, acoustical clarity in a multimedia environment requires a detailed analysis of the audiovisual characteristics and frequency response bands rather than a gross approach. Currently, the previously developed auditory compensation system is fragmented around individual characteristics rather than a media approach considering the characteristics of earphones. In addition, there is a lack of consideration for the hardware of the earphones themselves and a majority of the views regarding signal processing or hearing. In this study, a system was developed that was applied to Bluetooth-based mobile applications by creating composite filters by overlaying the Equal Loudness Contour based on auditory psychology and the net sound compensation filter based on hearing. The application of overlay filters, which reflect the structural characteristics of earphones and environmental conditions, is expected to contribute to reducing the auditory load while ensuring clarity about the effects of masking of noise. |