true

invert_phase.py

from pydub import AudioSegment

org = input("org file : ")
out = input("out file : ")

aud = AudioSegment.from_file(org)
channels = aud.split_to_mono()
for i in range(0, len(channels), 2):
    l_sub_r = channels[i].overlay(channels[i + 1].invert_phase())
    r_sub_l = channels[i + 1].overlay(channels[i].invert_phase())
    channels[i], channels[i + 1] = l_sub_r, r_sub_l

aud = AudioSegment.from_mono_audiosegments(*channels)
aud.normalize()
aud.export(out)