The highest amplitude was in all examined cases reached at a frequency level of 40 to 60 Hz and the grunts reached amplitudes with a power of 2000 mV.
Mesta sveifluvíddin náði í öllum tilfellum sveiflutíðninni 40 til 60 Hz og rýtin náðu sveifluvídd með orkunni 2000 mV.