Clinically Proven by



Technology
Threshold Sound Conditioning™
Threshold Sound Conditioning™ (TSC) was officially adopted for the first time by Stanford University in 2012. TSC has shown a significant effect on hearing sensitivity improvement with clinically proved evidence.
Sound Vaccine™
The spiral template of Sound Vaccine™ produces each of 31 sweep tones. Each of 7 layers of 10 dB step TSC level is calibrated in accordance with 0 dBHL reference values of ISO226:2003 as a function of frequency.
RPR Effects by TSC

Research
TSC
Sungho Cho, Eunyee Kwak, Sangyeop Kwak and Jaime Lopez
Neurology April 6, 2015, vol.84, no.14, Supplement S26.006
Eunyee Kwak, Sangyeop Kwak
Sept 8, 2011, NCT01184248
Restoration
Noreña AJ, Eggermont JJ., Neuroreport. 2006 Apr 24;17(6):559-63.
Noreña AJ, Chery-Croze S., Neuroreport. 2007 Aug 6;18(12):1251-5
Niu X, Tahera Y, Canlon B., Audiol Neurootol., 2004 Sep-Oct;9(5):265-73. Epub 2004 Aug 13.
Prevention
Niu X, Canlon B., Adv Otorhinolaryngol. 2002;59:96-105. Review.
Tahera Y, Meltser I, Johansson P, Salman H, Canlon B., Neurobiol Dis. 2007 Jan;25(1):189-97. Epub 2006 Oct 23
McFadden SL, Zheng XY, Ding DL., J Acoust Soc Am. 2000 Apr;107(4):2162-8.
Retardation
Willott JF, Bross LS, McFadden S., J Assoc Res Otolaryngol. 2005 Sep;6(3):234-43.
Willott JF, VandenBosche J, Shimizu T, Ding DL, Salvi R., Hear Res. 2008 Jan;235(1-2):60-71. Epub 2007 Nov 13.