A full range of objective and subjective techniques for the diagnostics of acoustic and vestibular analyzer affection, hearing threshold search is in one small unit anow! Using this device you can perform ABR, ASSR, multi-ASSR, MLR, LLR/CAEP, TEOAE, DPOAE, SOAE, ECochG, VEMP, P300, MMN, pure tone audiometry techniques easily.
Multi-ASSR test implemented in Neuro-Audio system allows minimizing test duration due to automatization (intensity switching for hearing threshold search), stimulation of both ears simultaneously using 8 carrier frequencies (4 in each ear, from 500 Hz to 4000 Hz, ), use of frequency-specific Chirp stimulus which takes into account the cochlear anatomy for the response amplitude increase. Test result is represented as estimated pure tone audiogram used further for hearing aid fitting.
Well-considered system characteristics (low level of amplifier noise) and software features (adaptive notch filter, weighted averaging, Chirp stimulus, calculation of statistical parameters of signal and noise, up-to-date algorithms for automatic response detection) help a physician to obtain a high-quality record quickly. All tests can be performed when patient is awake (not-sedated).
Neuro-Audio system ensures full state-of-the-art support of VEMP tests, including VEMP with biofeedback, VEMP amplitude correction by mean EMG activity level, and also a unique function of EMG histogram with the possibility of post-hoc analysis (important for children). Acquisition of bone-conduction VEMP is also possible using bone vibrator amplifier (separate unit) and B-71 bone vibrator. Supported technique variants: cVEMP (cervical), oVEMP (ocular), gVEMP (galvanic).
Modern interface, powerful database, configurable normal values, high quality of obtained records and reproducible results allow user to solve a wide range of daily audiological problems with highest accuracy. Variety of built-in test templates helps you to start working with program, and the possibility of their adjustment makes it possible to set up all the templates for your own requirements. Due to these unique features Neuro-Audio system manufactured by Neurosoft can be used both in hospitals and research institutes.
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: | 2 |
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: | not less than 90 MΩ |
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: | 20 μV to 50 mV |
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: | 200 Hz – 80 kHz |
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: |
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: | 0.01–5000 Hz | |
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: | ± 15 % |
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: | 10–10000 Hz |
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: | ± 5 % |
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: | not less than 40 dB |
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: | 21-20832 |
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: | not less than 100 dB |
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: | ± 10 % |
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: | 0.1 to 400 μV |
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: | not more than 0.5 μV |
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Auditory stimulator : |
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: | 2 |
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: | 137 dB SPL |
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: | Stimulation level (maximal for click) |
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: | -10 dB HL (or less) |
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: | 20–200 Hz |
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: |
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: | pure tone; | |
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: | 20–10000 Hz |
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: | amplitude, frequency, amplitude and frequency modulation |
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: | 0.05–50 ms |
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: | 125-8000 Hz |
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: |
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: | 0.1–100 Hz with the admissible relative deviation of ± 0.1 % | |
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: | with ±3.0 dB accuracy |
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: | |
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: | with ±5.0 dB accuracy |
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: | 50–5000 μs with the admissible relative deviation of ± 2 % |
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Maximum total harmonic distortion should not exceed : |
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: | 2.5% |
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: | 5.5% |
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Chirp stimulus (cochlear delay compensation) : |
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: | 10–10000 Hz |
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: | 499 Hz, 1 kHz, 2 kHz, 4 kHz |
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: | condensation, rarefaction, alternating |
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0–127 dB SPL (stimulus relative) | |
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: | White noise (0.02–10000 Hz) |
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: | 0 |
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: | yes |
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: | (19.5 ± 0.5) dB |
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: | -10 – 80 dB HL (at 3 kHz frequency) |
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General Parameters and Specifications : |
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: | ||
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: | from - 50ºC up to +50ºC |
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: | from +5ºC up to +40ºC |
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: | 20%–95ºC |
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: | 30%–85% |
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: | from 70 kPa |
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: | 70–106 kPa |
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: | USB | |||
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1 |
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: | 1 |
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: | 1 |
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: | 1 |
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: | 1 |
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: | 1 |
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Aksesoris Lokal: |
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: | 1 |
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: | 1 |
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: | 1 |
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: | 1 |