from moviepy.decorators import audio_video_fx
[docs]@audio_video_fx
def volumex(clip, factor):
""" Returns a clip with audio volume multiplied by the
value `factor`. Can be applied to both audio and video clips.
This effect is loaded as a clip method when you use moviepy.editor,
so you can just write ``clip.volumex(2)``
Examples
---------
>>> newclip = volumex(clip, 2.0) # doubles audio volume
>>> newclip = clip.fx( volumex, 0.5) # half audio, use with fx
>>> newclip = clip.volumex(2) # only if you used "moviepy.editor"
"""
return clip.fl(lambda gf, t: factor * gf(t),
keep_duration=True)