@AngryMatter скинула твой вопрос человеку, вот что ответил. What kind of signal is he working with? Audio? There's no offset, so I think the simplest way is to average peaks found by looking at RMS (root mean square).
The netdev collector CLI argument --collector.netdev.ignored-devices was renamed to --collector.netdev.device-blacklist in order to conform with the systemd collector.