An instance of increasing the brightness of an image or the volume of a sound.
（画面亮度或音量的）渐强
Example sentencesExamples
If you are recording a volume fade up from 0 on a track, then you can't play the sound on that track (channel) when the song is stopped, because the volume is zero.
Definition of fade-up in US English:
fade-up
nounfeɪd əp
An instance of increasing the brightness of an image or the volume of a sound.
（画面亮度或音量的）渐强
Example sentencesExamples
If you are recording a volume fade up from 0 on a track, then you can't play the sound on that track (channel) when the song is stopped, because the volume is zero.