A highly sophisticated, easy to use and extremely portable Otoacoustic Emission System

EP25 ABR Stand Alone Unit


EP25 ABR Otoacoustic Emission System

Truly portable and lightweight!


Weighs less than 6 oz. without computer. Just plug the PCMCIA card into the PCMCIA Type II slot and start testing.




Standard Features

Easy to use

Pass/refer criteria

Test newborns to adults

Screen students for hearing loss



Use for difficult to evaluate individuals:

Language disorders

Alzheimer's patients

Functional hearing loss

Behavioral disorders

Mentally challenged


Special Features

* Ideal for hearing screening or research application.

* Two clicks of the mouse or two hits on the keyboard you can observe a DP-GRAM and determine if the patient requires further evaluation.

* In the ear transfer function lets the examiner know if the probe is in the ear canal properly thus reducing the number of false readings.

* Now with ARTIFACT REJECTION to further reduce the time necessary to obtain a DP-GRAM.


Important Info

* The Starkey DP 2000 and 2001 are windows-based Otoacoustic Emission Systems that have been designed specially for the clinician or the researcher.

* Neither of the two systems have no large external boxes to carry around. The Digital Signal Processing occurs on a PCMCIA card that fits neatly into a computer. With our user-defined test protocols, the examiner can measure various Distortion Product points (besides 2 fl-f2) and a wider range of test points (500-16000hz).




Starkey DP 2000


Patient Database:

The examiner can enter new patient information either immediately before the test, or as a batch, before anyone is tested.


Parameter Window:

The following parameters may be modified:

frequency range

stimulus intensity

F2/F1 ratio

DP definition

DPs per octave

averaging time per frequency

pass/refer criteria


Artifact Rejection:

User definable criteria and stopping rules.

Adjustable Parameters: Range: 500-16,000 Hz

Number of test points per octave - 0-50

Intensity: f1 level (0-70 dB) 12 level (0-70 dB)

Minimum number of valid test points to pass a test

Minimum DP level to pass

Ratio: 1.1 to 1.8 F2/F1

Ratio: 1.1 to 1.8 F2/F1

Averaging time: 0.25 to 20 sec DP definition points: f2-f1; 2f1-f1; 2f1-f2; 3f1-2f1; 3f2-2f1; 4f1-3f2,; 4f2-3f1


Artifact Rejection Criteria:

Noise level for rejection

Noise level above calibrated

Noise floor rejection


Stopping Rules Criteria:

Noise Floor level for accepting DP measurement

Acceptable DP to Noise Floor ratio

Maximum Signal Duration for a frequency point


Computer System Recommendations:

IBM TM compatible portable computer having an available PCMCIA type II slot

8 MB of RAM

75 MHz or faster in an 486 DX or Pentium TM machine

High Density (1.44) floppy disk drive

Color Monitor Windows 98TM or 95TM Operating System

1 GB Hard Drive


System Requirements:

Environmental conditions: operating temperature must be within the range of +59°F to +95°F or +15C to +35°C Relative humidity must be within the range of 30 to 90%


Weight: Less than 6 oz (without computer)


Software Ear tips: 8 different disposable ear tip sizes