Q. What configurations are available with the GSI Audera Pro?
A. Available configurations on the Audera Pro include AEP only, AEP and ASSR, AEP and TEOAE/DPOAE, TEOAE/DPOAE only, and a full configuration that includes all test modalities AEP/ASSR/TEOAE/DPOAE.
Q. What tests can be performed with the AEP test modality?
A. The following tests are available with the AEP test modality: ECochG, ABR, MLR, LLR and SN10. In addition, eABR, P300, MMN as well as oVEMP/cVEMP protocols are included.
Q. Is it possible to record bone conduction ASSR?
A. Yes, the Audera Pro includes this feature. It is possible to record ASSRs with all AEP transducers, including insert earphones, headphones, bone oscillator, and the optional amplified speakers.
Q. What OAE tests can be performed with the Audera Pro?
A. The following tests are available: screening (pass/refer) protocols, diagnostic protocols, spontaneous OAE, and DP input/output functions.
Q. Are there objective tools for analyzing waveforms?
A. The Audera Pro includes a variety of objective analysis tools such as cross correlation, SNR, and RN. SNR and RN are objective tools that assist the clinician in determining the presence or absence of a response. Cross correlation is a statistical tool that provides an objective estimate of the similarity of two waveforms. The higher the correlation value, the more similar the waveforms are with “1” being perfect correlation. Signal to Noise Ratio (SNR) is the ratio of the response from the patient (the ABR, or auditory brainstem response) vs the noise such as the EEG or EMG activity. Residual Noise (RN) is the amount of noise that remains in the response. When a response is present, the SNR should increase, and the RN should decrease during the collection as more sweeps are averaged. The Audera Pro displays RN and SNR for the active waveform as well as saved waveforms.