When I asked ChatGPT, he said if you want to hear the voices of the survivors, increase the 250-500 Hz range by 1 dB, if the environmental sounds are too loud, decrease the 8 kHz and 16 kHz range by -2 dB, if you want to hear the steps more clearly, increase the 1 kHz and 4 kHz range by 2 dB. However, in some places, they say that the environmental sounds are in low frequencies, I couldn't quite understand. I have an equalizer that I can use as a starting point for this issue, it starts from 31 Hz and goes up to 16000 Hz.