Stimulus waveforms used in brainstem response audiometry.
Clicks and tone-bursts are the most widely used stimuli in brainstem response audiometry. The acoustic click waveform is not only dependent on electric pulse length, but also on the type of transducer, ear coupling and measuring method employed. On the other hand, acoustic tone-bursts are more precisely defined by the electric stimulus-parameters since they show less variation under the same experimental conditions. Acoustic cancellation with alternating polarity electric stimuli is also better with tone-bursts.
D000161:Acoustic Stimulation; D001299:Audiometry / Q000379:methods*; D001300:Audiometry, Evoked Response / Q000379:methods*; D001933:Brain Stem / Q000502:physiology; D005072:Evoked Potentials, Auditory; D006801:Humans; D013018:Sound Spectrography