https://joy.videvo.net/videvo_files/video/free/2021-05/large_watermarked/210512_02_Music_4k_005_preview.mp4 Close Up Shot of Sound Mixers Hand Adjusting Faders A close-up shot of a sound mixer's hands adjusting faders on a sound mixing board. adjustmentaudioboardbuttonengineerfaderinstrumentknobmixermusicproducerproductionsoundswitchtechnology