Patent ID: 7020581

Claim:
A hearing aid analysis system comprising: a source of prerecorded speech sounds; hearing aid analysis circuitry, including: circuitry to receive a plurality of signals representing signals generated by speech sounds routed through different acoustic paths, and filter circuitry to selectively simulate a hearing loss; a hearing aid under test operably interfaced with the source of prerecorded speech sounds and the hearing aid analysis circuitry; and a computer system operably connected to die hearing aid analysis circuitry and the source of prerecorded speech sounds, the computer system including: a control program that operates to present the prerecorded speech sounds to the hearing aid analysis circuitry to produce a first degraded signal routed through the filter circuitry and a second processed signal routed through the hearing aid and the filter circuitry; and a speech recognition program that compares speech recognition from the first degraded signal and speech recognition from the second processed signal to determine an objective indication of speech perception enhancement for the hearing aid under test.