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GSI Audera
The GSI Audera provides AEP, OAE and ASSR testing in a modular system for the busy audiology and ENT practice. Audera excels in generating high quality data, providing simple system operation, and utilizing convenient database management. Test results are easily interpreted through comparison to normative data sets.
AEP - Auditory Evoked Potentials
Use the GSI Audera to assess both cochlear and retro-cochlear function with these additional AEP testing capabilities:
• Electrocochleography (ECochG)
• Auditory Brainstem Responses (ABR)
• Auditory Middle Latency Responses (AMLR)
• Long Latency or Cortical Responses (CAEP)
• Electrical ABR
• CE-Chirp Normative Data with the GSI Audera
OAE - Otoacoustic Emissions
The GSI Audera DPOAE is designed with a combination of reliable DP technology, user-friendly graphic interface and easy-to-understand results.
ASSR - Auditory Steady-State Response
Obtain frequency-specific ASSR results and an estimated audiogram using GSI Audera's testing features.
AEP/ CAEP
| Test Types | : | AEP, ECochG, Cortical AEP, AMLR, EABR |
| Transducers | : | Insert earphones, TDH Headphones, Bone vibrator, Loudspeaker |
| Protocols | : | Default and customer specified |
Stimulus Specifications
| Stimulus Types | : | Click, tone burst, tone pip |
| Stimulus Polarity | : | Condensation, Rarefaction and Alternating |
| Masking Types | : | Absolute or stimulus relative |
| High Pass Filtering | : | RC or Digital Butterworth |
| Low Pass Filtering | : | Butterworth or Digital linear phase |
ASSR
| Transducers | : | Insert earphones, TDH Headphones, Bone vibrator, Loudspeaker |
| Protocols | : | Default Asleep and Awake protocols or customer specified -- Estimated Audiogram relies on default protocols |
Stimulus Specifications
| Stimulus Types | : | AM/FM |
| Masking Types | : | Absolute or stimulus relative |
| Intensity | : | -10 to 130 dB HL |
| Carrier Frequency | : | 250 – 8000 Hz |
| Modulation Frequency | : | 20 – 200 Hz depending on carrier frequency |
DPOAE
| Frequency | : | 500 – 12, 000 Hz |
| Harmonic Distortion | : | 20 – 80 dB SPL, in 5 dB steps |
Stimulus Specifications
| Frequency | : | 500 – 12, 000 Hz |
| Harmonic Distortion | : | 20 – 80 dB SPL, in 5 dB steps |
| Harmonic Distortion | : | <_ 1.8% at 80 dB SPL, IEC 711 coupler, 500 – 12,000 Hz |
| Dynamic Range | : | 85 dB SPL, IEC 711 coupler, 500-12,000 Hz, F1 & F2 = 65 dBSPL |
| Octave Ranges | : | 500-1000, 1000-2000, 2000-4000, 4000-8000, 8000-12000 Hz |
