https://joy.videvo.net/videvo_files/video/free/2014-12/large_watermarked/Radio_Broadcasting_Board_preview.mp4 Radio Broadcasting Mixer Board A close-up of a professional radio broadcasting mixer board featuring active "on-air"" VU meters." 1080pboothbroadcastingcardioidcloseclose-updeskfadersfoamhyper-cardioidlivemediametermetersmicmicrophonemixermixingon-airradiorecordrecordingsoundstudiovocalvocalsvuvu meter