waveform audio. abstract sound waves background. audio wave digital frequency. chromakey. 4k video animation - 頻度 個影片檔及 b 捲影像00:20
sound engineer is working with sound control desk in studio, closeup sound engineer moving level audio mixer. - 頻度 個影片檔及 b 捲影像00:10
the ears and hearing (2nd edition) - part 19 of 36. visualizes the structure and functions of the human ear and how it transmits sound waves to the brain. visual techniques include photomicrography, animation, analog demonstrations. stroboscopic lighting - 頻度 個影片檔及 b 捲影像00:30
4k abstract blue wave particle over dark background with light effect, digital technology connection and innovation concept - 頻度 個影片檔及 b 捲影像00:30
abstract digital cyberspace futuristic particles wave flowing with lines and dots connection technology network background - 頻度 個影片檔及 b 捲影像00:30
client laying with smeared face and specialist using on skin high frequency d'arsonval device on face parts - chin and cheek in medical office - 頻度 個影片檔及 b 捲影像00:11
aerial view of abandoned radioactive military radar, duga radar system in chernobyl, pripyat - 頻度 個影片檔及 b 捲影像00:14
waveform audio round. abstract sound waves background. audio wave digital frequency. colorful on black. 4k video animation - 頻度 個影片檔及 b 捲影像00:20
4k stcok video of oscilloscope wavelengths showing vibrant colors using dynamic movements - 頻度 個影片檔及 b 捲影像00:29
vibrations - part 12 of 23. to show that a vibration occurs whenever an action is repeated with regular rhythm, we see a tuning fork vibrate. vibrating arms of the fork strike against surrounding air particles which strike against our ears and produce sou - 頻度 個影片檔及 b 捲影像00:32
4k footage of abstract wave particle and lines over white background, digital technology and innovation concept - 頻度 個影片檔及 b 捲影像00:06
secant cosecant sine wave animation, trigonometric functions, geometri, mathematics, electrocardiogram oscilloscope waveform, ekg ecg graph, heart rate monitor - 頻度 個影片檔及 b 捲影像00:12
1980s lifestyle collection: part 2; 132636: 16.9.1985 acupuncture: liverpool: heroin addict jackie to chemist shop; methadone prescription;... - 頻度 個影片檔及 b 捲影像01:57
male scientist passing parabolic dish radio antenna inside facility, vs male & female researchers, astronomers working, writing, adjusting equipment... - 頻度 個影片檔及 b 捲影像00:46
station building. coast guard radioman at controls, male hand turning frequency dial, radioman listening w/ headset, turning on cylinder recorder . - 頻度 個影片檔及 b 捲影像00:22
abstract blue wave particle over dark background with light effect, digital technology connection and innovation concept - 頻度 個影片檔及 b 捲影像00:09
3d cycled animation of glowing line sliding in the shape of an infinity symbol. abstract neon background - red - 頻度 個影片檔及 b 捲影像00:10
4k abstract blue wave particle over dark background with light effect, digital technology connection and innovation concept - 頻度 個影片檔及 b 捲影像00:30
