Welcome to the next generation in hearing aid testing!
Copyright Bruce Waring & Associates LLC. 2011 All rights reserved
Last Update 8/25/2011
Medispec
Medical Instrument Compliance Specialists
Bruce Waring & Associates LLC
The FONIX 8000 Hearing Aid Test System is a direct descendent of the FONIX 7000 Hearing Aid Test System, prized by hearing health professionals the world over for its dependability, accuracy, and advanced testing capability. The new FONIX 8000 advances the science of hearing aid testing even farther with the introduction of the optional 8120 Polar Plot Sound Chamber.
The FONIX 8000 Hearing Aid Test System has a Polar Plot Option that includes a new test screen capable of performing polar plots of directional hearing aids and giving you a much better picture of the directional characteristics of these hearing aids. Although the results are not a replacement for laboratory testing using an anechoic chamber, the 8120 Polar Plot chamber provides the hearing health professional with a clinical tool for verifying approximate directionality characteristics of the hearing aid.
The FONIX 8000 Hearing Aid Test System comes equipped with the Digital Speech signal. This is a modulated broadband signal for testing digital hearing aids. Many digital hearing aids have noise suppression technology. When part of the input signal is constant (such as a conventional test signal), the hearing aid does not amplify it as much as the part of the input signal that is modulated, such as a speech signal. The modulation in the Digital Speech signal typically causes the hearing aid to amplify the signal instead of suppressing it.
As an additional feature, the Digital Speech signal has the option of adding a Bias Tone. The Bias Tone creates a continuous signal at a selected frequency. This allows the user to determine how the hearing aid reacts in the presence of noise at various frequencies. This can also show the behavior of the hearing aid in channels where the noise is not present. If there is noise at 500 Hz, does the hearing aid suppress the signal at 4000 Hz? The Bias Tone can tell you exactly what's going on when part of the test signal contains a continuous input.
The FONIX 8000 Hearing Aid Test System can be purchased with the ANSI S3.22 87/96/03, IEC 60118-7 94/05, JIS 2000, or a combination of these test sequences. This makes the 8000 Test System capable of testing hearing aids manufactured and sold in countries all over the world.
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