Maximizing the Voice-To-Noise Ratio (VNR) via Voice Priority Processing
By Flynn, Mark C., PhD; Hearing Review, Vol. 11, No. 4, pp. 54-59Publication Date: April 2004
Article describes the Voice Priority Processing (VPP) system as employed in the Syncro hearing aid, which was developed by Oticon. The VPP system features parallel processing, which is employed via three methods: (1) multi-band adaptive directionality, (2) tri-state noise management, and (3) voice-aligned compression. Multi-band adaptive directionality features separate polar patterns for each frequency bands, while tri-state noise management is a system that categorizes noise situations into distinct listening modes. Voice aligned compression features compression in eight independent channels across an extended bandwidth. The overall purpose of the VPP system is to progressively optimize speech signals, and to help clean the signal of noise and maximize speech understanding. Combining the systems to work together allows the signal to be processed so that speech understanding is prioritized.
Assistive Products Discussed: OTICON SYNCRO
Published by: Ascend Media LLC (Website:http://www.ascendmedia.com)
Link to text: http://www.hearingreview.com/Articles.ASP?articleid=H0404F08
