Open Fit Capability
The ability to test all hearing aids in one device saves you time and space and is part of a complete service to clients. REM440 meets that requirement. It provides a wide range of settings and stimuli for testing non linear hearing instruments. The Calibrate for Open Fit function (substitution method) handles the new trend of open fittings seen in various products. Verification and fine-tuning of state-of-the-art open fit and non-occluding hearing aids.
RECD and Normative Data
The dedicated setup with the SPL probe and high quality coupler parts support pediatric fitting where the attention span normally is very short.
Through a single measurement a complete fitting can be achieved!
Better Service to Families
The specially designed SPL probe and high quality coupler parts can enable a rapid test fitting of children whose attention span is very short.
In cases where measurement of REUR and RECD is not practical, REM440 provides age related normative data to approximate these values. Double clicking the test button opens a dialog to input age. This can be used to avoid stress in the evaluation (e.g. with tired infants). It is, however always preferable to use measured values where possible.
Normative Data
Normative data for immediate testing and evaluation: For those conducting numerous pediatric fittings where a good fundament for the REIG (Insertion gain) the REUR (Unaided response) and for those conducting RECD testing (Real Ear to Coupler Difference) should be made - however this is often difficult due to the short attention span and discomfort experiences by especially children in the clinic. This is easy solved by the use of the normative data installed in the REM440 module. For the functionality REUR and RECD a double click on the test button will open up a selection screen where age categorized normative data can be added to either one of the tests or both.
Supporting an efficient flow in the examination which saves time for both the clinician and the family as well as takes the stress out of having to perform certain tests to progress into the fitting of the hearing aids.
Speed also makes the clinician appear professional in the examination as they don't have to struggle to get the measurement done.
Concurrent Operation
The REM440 can be open at the same time as other fitting applications to enable smooth adjustment and verification of the hearing aid.
Enables the ability to be open concurrent with the fitting applications to enable smooth adjustment and verification of the hearing aid.
Accommodates the need for speed as hearing aids faster can be fitted to the individual needs of the patient.
Historical Session
Direct access from the measurement screen to saved sessions which can be overlaid either with another historical session or merged into the actual session for easy status evaluation during annual follow-ups.
Access to a historical session provides a quick sense of the starting threshold for the actual session.
Benchmarking measurement provides a strong tool to evaluate the present status as well as to present it to the patient and relatives.
Test results are saved in sessions which can be recalled for comparison and use in the current session. Results from the audiogram or other REM sessions will serve as starting points for the current REM.
Report Page
Session-specific comments Integrated into the application Saving time on storage, retrieval and reuse as well as sharing of information.
The Report Page function allows you to comment on the fitting process, including factors that might be relevant to future visits or when troubleshooting the hearing aids. This ensures that human observations are not lost. The report page is saved with the session in the database.
User Protocols and Customization of Setup
You can design user protocols for different categories of client (e.g. adults and or children). Or you can use specific aid types. This will often save you significant time and is more convenient. User protocols are stored on a drop down menu and run by single click selection.
There are many settings under user control, so this feature can really make a significant difference in time and convenience.
Optimization of working process through a reflection of local/personal preferences
Full flexibility to create protocols which reflect either patient group seen (adult or children) or to reflect other preferences for fitting and verifying different types of hearing aids.
Taking care of time - taking care of business
Professional Appearance
Reflecting trust and confidence in usage situations
Better customer service, increased sales, fewer returns due to better fitting
Twin Headset
Both sides with probe and reference microphones
The following text is based on Pumford, J. & Sinclair, S. (2001) Real-Ear Measurement: Basic Terminology and Procedures.
REUR (Real-Ear Unaided Response):
Short description: The REUR accounts for the SPL across frequencies measured in the open/unaided ear canal for a given input signal at specific measurement point.
REUG (Real-Ear Unaided Gain)
Short description: The REUG accounts for the gain in the unaided ear canal provided by the auricle and ear canal. This is obtained by subtracting the input level from the REUR.
REUR – input = REUG
Purpose: The REUR/REUG is often used in the calculation of REIG (Real-Ear Insertion Gain) and customizes coupler gain on basis of the REIG target. REUR/REUG also enables the clinician to convert the audiogram from dB HL to dB SPL. This is particularly helpful when working with a fitting prescription such as DSL m[i/o] which uses an SPL-O-GRAM as a substitute for the audiogram.
The REUR/REUG may also help revealing irregularities in the ear canal.
Work area: Hearing instrument verification
REAR (Real-Ear Aided Response)
Short description: The REAR accounts for the SPL across frequencies for a given signal measured in the ear canal with the hearing aid in place turned on.
REAG (Real-Ear Aided Gain)
Short description: The REAG accounts for the gain across frequencies for a given input signal measured in the ear canal. This is obtained by subtracting the input level from the REAR.
REAR – input = REAG
Purpose: The REAR/REAG is often used in the calculation of REIG (Real-Ear Insertion Gain). Furthermore some fitting prescriptions (such as DSL) prescribe REAR/REAG targets for some input levels. If the audiogram has been converted from dB HL to dB SPL and use a SPL-O-GRAM it can quickly be determined whether an input is audible.
Work area: Hearing instrument verification
REIG (Real-Ear Insertion Gain)
Short description: The REIG accounts for the gain across frequencies provided by the hearing instrument alone. This is obtained by subtracting the REUR from the REAR or the REUG from the REAG.
REAG – REUG = REIG
Purpose: The REIG is most often used to verify if a given hearing aid setting is providing an acceptable level of gain compared to the prescribed REIG target.
Work area: Hearing instrument verification
RECD (Real-Ear to Coupler Difference)
Short description: The RECD accounts for the difference in decibels (dB) across frequencies, between the SPL measured in the real-ear and in a 2cc coupler, produced by a transducer generating the same signal.
Real-Ear SPL – Coupler SPL = RECD
Purpose: The RECD is often used when fitting children. It ensures that information about the child’s occluded ear canal characteristics is obtained and enables the clinician to convert this information from dB HL to dB SPL. This is particularly helpful when working with a fitting prescription such as DSL which uses an SPL-O-GRAM as a substitute for the audiogram. The RECD may also be utilized in the estimation of 2cc coupler targets which are not only useful in the verification process but also when selecting a suitable hearing instrument by means of the manufacturer’s data sheets.
Work area: Hearing instrument verification
REOR (Real-Ear Occluded Response)
Short description: The REOR accounts for the SPL across frequencies measured in the ear canal with the hearing aid in place turned off.
REOG (Real-Ear Occluded Gain)
Short description: The REOG accounts for the gain across frequencies measured in the ear canal with the hearing aid in place turned off. This is obtained by subtracting the input signal from the REOR.
REOR – input = REOG
Purpose: The REOR/REOG is often used to assess en venting of a hearing instrument and whether it is functioning as expected. It may also help in revealing if vent is introducing unwanted acoustic effects.
Work area: Hearing instrument verification
Short description: The Input/Output curve displays the output of the hearing instrument as a function of the input for one frequency (or broadband signal).
Purpose: The Input/Output function provides information about the compression characteristics of the hearing instrument such as for example expansion, knee-point, and compression limiting.
Work area: Hearing instrument verification (Dillon 2001)