High, middle, low of the tone and echo effect adjustable.

音调的高音，中音，低音和混响效果可调。

youdao

This echo effect can be heard on the recording of this huge hit for the Supremes in nineteen sixty-four, "Where Did Our Love Go?"

VOA: special.2009.05.11

But many of my calls had some slight echo effect or occasional clipped words, despite a recent software update intended to fix the problem.

WSJ: Personal Technology: A $19 Unlimited Phone Plan

The only way to avoid this kind of echo chamber effect is to make a habit of consuming media from a wide variety of ideological perspectives.

FORBES: Decentralized Media Industry Places New Demands on Readers

Dana Milbank chimed in to argue that the rise of Twitter had created an echo chamber effect among campaign journalists that shapes these shared narratives, literally moment-by-moment.

FORBES: Data Will Kill the Political Media "Narrative"