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A Novel Dentary Bone Conduction Device Equipped with Laser Communication in DSP
Perng, Jau-Woei ; Hsieh, Tung-Li ; Guo, Cheng-Yan
Sensors (Basel, Switzerland), 2021-06, Vol.21 (12), p.4229
[Periódico revisado por pares]
Basel: MDPI AG
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Título:
A Novel Dentary Bone Conduction Device Equipped with Laser Communication in DSP
Autor:
Perng, Jau-Woei
;
Hsieh, Tung-Li
;
Guo, Cheng-Yan
Assuntos:
Accuracy
;
Bones
;
CMU ARCTIC databases
;
Design
;
Digital filters
;
Digital signal processing
;
Digital signal processors
;
DSP digital filter
;
DSP-based
;
Hearing aids
;
Lasers
;
Microphones
;
Microprocessors
;
Optical communication
;
Receivers & amplifiers
;
Signal processing
;
Signal to noise ratio
;
Sound
;
Usability
;
Verbal communication
;
Vibration measurement
É parte de:
Sensors (Basel, Switzerland), 2021-06, Vol.21 (12), p.4229
Notas:
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
These authors contributed equally to this work.
Descrição:
In this study, we designed a dentary bone conduction system that transmits and receives audio by laser. The main objective of this research was to propose a complete hardware design method, including a laser audio transmitter and receiver and digital signal processor (DSP) based digital signal processing system. We also present a digital filter algorithm that can run on a DSP in real time. This experiment used the CMU ARCTIC databases’ human-voice reading audio as the standard audio. We used a piezoelectric sensor to measure the vibration signal of the bone conduction transducer (BCT) and separately calculated the signal-to-noise ratio (SNR) of the digitally filtered audio output and the unfiltered audio output using DSP. The SNR of the former was twice that of the latter, and the BCT output quality significantly improved. From the results, we can conclude that the dentary bone conduction system integrated with a DSP digital filter enhances sound quality.
Editor:
Basel: MDPI AG
Idioma:
Inglês
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