noun
playback speed; replay speed
Used for audio/video playback speed, such as 1.5x or 2x speed.
動画の再生速度を1.5倍に変更した。
I changed the video playback speed to 1.5x.
noun
Technical term for display refresh rate, measured in Hz.
このモニターの再生速度は144Hzです。
This monitor's refresh rate is 144Hz.
Compound of 再生 (playback, regeneration) and 速度 (speed).