An investigation of effective SNR-change through amplitude-compression hearing aids

Authors

  • Graham Naylor Oticon research centre Eriksholm, Kongevejen 243, DK-3070 Snekkersten, Denmark
  • René Burmand Johannesson Oticon research centre Eriksholm, Kongevejen 243, DK-3070 Snekkersten, Denmark
  • Filip Rønne Oticon research centre Eriksholm, Kongevejen 243, DK-3070 Snekkersten, Denmark

Abstract

The long-term Signal-to-Noise Ratio (SNR) at the input and output of compression amplification hearing aids (HA) are measured and computed. Systematic changes of long-term SNR from input to output are found. These changes are affected by both compression system parameters and signal properties of speech and noise. Such SNR changes may potentially affect perceptual performance for users of compression HAs. This is also investigated, although the current standing of this work does not provide a clear conclusion.

References

Hagerman, B, and Olofsson, Å. (2004). “A Method to Measure the Effect of Noise Reduction Algorithms Using Simultaneous Speech and Noise,” Acta Acustica 90, 356–361.

Olsen, H. L., Olofsson, Å., and Hagerman, B. (2005). “The effect of audibility, signal- to-noise ratio, and temporal speech cues on the benefit from fast-acting compression in modulated noise,” Int. J. Audiol. 44, 421-433.

Souza, P. E., Jenstad, L. M., Boike, K. T. (2006). “Measuring the acoustic effects of compression amplification on speech in noise,” J. Acoust. Soc. Am., 119, 41-44.

Additional Files

Published

2007-12-15

How to Cite

Naylor, G., Johannesson, R. B., & Rønne, F. (2007). An investigation of effective SNR-change through amplitude-compression hearing aids. Proceedings of the International Symposium on Auditory and Audiological Research, 1, 595–600. Retrieved from https://proceedings.isaar.eu/index.php/isaarproc/article/view/2007-60

Issue

Section

2007/6. Hearing-aid evaluation and optimization