Closed-field auditory brainstem response testing system (including distortion otoacoustic emission testing system)

The mouse auditory brainstem response (ABR) testing system induces and records underlying responses in the cerebral cortex by delivering sound stimulation of varying intensities.Test results are used to determine the presence of hearing loss, often for hearing screening and threshold assessment.Distortion product otoacoustic emissions (DPOAE) record ear canal sounds emitted by the cochlea and reflect the external function of hair cells.

Giant Tek closed-field ABR and DPOAE systems feature dual channels, doubling the test capacity compared to TDT systems.The sampling rate is 384 kHz and the resolution is 24 bits, which is leading the way.High sampling rates are particularly important for recording high frequency (>30 kHz) DPOAE signals.