scratch filter वाक्य

उदाहरण वाक्य

1. A representative valve preamp from the 1950s is the Leak'varislope'series of preamps, which included a switchable rumble filter, a switchable scratch filter with selectable slopes and corner frequency, continuously variable treble and bass tone controls and a selection of 4 different gramophone equalisations ( RIAA, ortho, RCA, 78 ).