Hardware Platforms

Compare IHS’s ABR and evoked potential testing equipment, the Duet, Aria, and Solo platforms, side by side. The tables below break down acquisition modes, stimulus types, and add-on modules like SmartEP-ASSR, SmartDPOAE, and SmartTrOAE for each system. See the full comparison brochure below, or visit each platform’s page for detailed specs.
Available Software
SmartEP
Duet | Aria | Solo | |
Acquisition Modes | Single or Dual Channel | Single Channel | Single Channel |
ECochG | ![]() | | Limited by Filters |
ABR | ![]() | ||
MLR/LLR | ![]() | ||
P300/MMN | ![]() | ||
eABR | ![]() | ||
AAR/FFR | | ||
cVEMP/oVEMP | ![]() | ||
Visual EP | ![]() | ||
Somatosensory/eNoG | |||
Stimulus Types | |||
Click | |||
Tones | |||
Broadband iChirps | |||
Octave Band iChirps | |||
Complex | ![]() | ||
Speech | ![]() | ||
User Defined | ![]() | ||
Stimulus Duration | |||
Mode | uSec or Cycles | uSec or Cycles | uSec or Cycles |
Click | 100 us (customizable) | 100 us (customizable) | 100 us (customizable) |
|
|
| up to 500 us |
Masking | |||
Specific Level | |||
Tracking Level | |||
Contralateral White Noise | ![]() | ||
Ipsilateral Notched Noise |
SmartDPOAE
Duet | Aria | Solo | |
Stimulus | |||
2 Pure Tones | ![]() | ||
User-defined Start and End | |||
User-defined F2/F1 ratio | |||
65/55 default stimulus level (modifiable) | |||
Simulus level range 0 – 80 dB SPL | 0 – 80 dB SPL | 0 – 80 dB SPL | |
Frequencies per octave | 1 – 10 | 1 – 10 | |
Data points per DPGram | 41 | 41 | |
HIgh Frequency Mode | ![]() | ![]() | |
Analysis | |||
Frequency Analisys Points | 4096 | 4096 | |
FFT Frequency Resolutions | 9.8 Hz in Standard Mode 15.6 Hz in High Frequency Mode | 9.8 Hz in Standard Mode 15.6 Hz in High Frequency Mode | |
Acquisition Time | 102.24 ms | 102.24 ms |
SmartTrOAE
Duet | Aria | Solo | |
Acquisition Modes | |||
Linear | |||
Non-Linear | |||
Suppression Module (add -on) | Contralateral, Ipsilateral, and Binaural | Contralateral (coming soon) | |
Dual Probe | |||
Stimulus | |||
75 us Click default (adjustable) | |||
Frequency Range | 250 – 6000 Hz | 250 – 6000 Hz | |
Stimulus rate (user-defined) | 1/s – 50/s | 1/s – 50/s | |
Simulus Level (adjustable) | 0 – 95 dB SPL | 0 – 95 dB SPL | |
Analysis | |||
Frequency Analysis Points | 1024 | 1024 | |
FFT Frequency Resolution | 39.1 Hz | 39.1 Hz | |
Acquisition Time |
| 25.56 ms |




