PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 3678657

Functional gain.

G B Haskell
View original source ↗Export metadata ↓

Abstract

The concept of functional gain was popularized by Pascoe in 1975, and for some time was one of the most popular hearing aid evaluation techniques. More recently probe tube systems for measuring insertion gain have become popular, and some questions regarding the continued utility of functional gain have been raised. In this paper some of the major advantages and disadvantages of functional gain are reviewed. While functional gain is subject to contamination from noise external or internal to the hearing aid, it does provide subjective information not available from insertion gain.

Explore related subjects

AcousticsAuditory ThresholdHearing AidsHumansPitch PerceptionJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

G B Haskell. 1987. Functional gain.. https://doi.org/10.1097/00003446-198710001-00007

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed1992

Acoustic probe-based ELISA.

The effects of acoustic microstreaming during incubation steps of a prototypical three-step ELISA were studied. Acoustic microstreaming, an orderly mixing of microwell contents induced by linear oscillation of immersible acoustic probes, was shown to be particularly effective when coupled with locating the solid phase on the surface of the probes. Optical densities achieved for acoustic probe-based assays were equivalent to those for uninsonated microwell-based assays with only 20% of the microwell solid phase surface area. Low-level antibody detection was significantly improved and antibody incubation times significantly shortened without loss of signal. Acoustic probe-based assays can enhance assay and laboratory efficiency through testing for multiple analytes in a single sample or increasing available binding surface area (by using probe and well surfaces simultaneously), and by eliminating quenching. Acoustic probe ELISA methodology has significant implications for cost-effective automation.

Acoustics↗