高域 こういき通過 つうかフィルタでしょう
kōikitsūkafirutadeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 高域通過フィルタ

1. High-pass filter, probably.; It will likely be a high-pass filter.

Polite
Presumptive
Conjecture
Computing