librosa/display.py
def __envelope(x, hop):
    '''Compute the max-envelope of x at a stride/frame length of h'''
    return util.frame(x, hop_length=hop, frame_length=hop).max(axis=0)
def __envelope(x, hop):
    '''Compute the max-envelope of x at a stride/frame length of h'''
    return util.frame(x, hop_length=hop, frame_length=hop).max(axis=0)
def __envelope ( x , hop ) : return util . frame ( x , hop_length = hop , frame_length = hop ) . max ( axis = 0 )
Compute the max-envelope of x at a stride/frame length of h
Compute the max - envelope of x at a stride / frame length of h