Fourier analysis of ECochG templates

Computer templates of the action potential/summating potential waveforms from electrocochleograms have been analysed in the frequency domain following the Fast Fourier Transform. Analysis in the frequency domain is compared with standard time domain analysis and some inadequacies of the latter technique are shown. A simple account of the principles of Fourier analysis is given which may be of assistance to the general reader, particularly as computer packages currently being marketed with electric response audiometry equipment make this analytical technique readily available.