References

Anonymous, 2006. How to read SpO2. Konica Minolta Business Solutions, Ramsey, New Jersey, USA.

Anonymous, 2016. Report the cause of death in 2015. Statistics Korea, Korea.

Anonymous, 2018. Lung body organs information. Seoul National University Hospital, Seoul, South Korea. http://terms.naver.com.

Bae, M.J. and S.H. Lee, 1998. Digital Speech Analysis. Dong Young Diamond Industrial Co. Ltd., South Korea..

Bong-Young, K., A. Ik-Soo and B. Myung-Jin, 2017. A study on improvement of lung function through stimulation of sound necklace. Proceedings of the 5th International Symposium on Advanced and Applied Convergence (ISAAC 2017), November 1-12, 2017, Dongguk University, Seoul, South Korea, pp: 195-198.

Ik-Soo, A. and B. Myung-Jin, 2016. Study on a new sound necklace for a body fitness. Intl. Inf. Inst. Tokyo J. Inf., 19: 3737-3744.

Kang, S.H., 2007. Fundamentals of sound engineering. Sound Media, Korea.

Kang, S.H., S. H. Jung, H.K. Jung and J.W. Lee, 2010. Analysis of reverberation time. Acoust. Soc. Korea, 2010: 311-314.

Myung-Jin, B., 2017. On a voice health technology. J. Acoust. Soc. Korea, 34: 3-4.

Sueng, H.H., G.L. Soon, S.K. Jung, S.K. Pan and J.O. Byung, 2011. Influence of a difference in Oxygen intake concentration on recovery after performing maximum exercise. J. Korean Alliance Martial Arts, 13: 287-299.