Full reference to all audio in @black-screen MP4, use it exactly as is. Lip move

Full reference to all audio in @black-screen MP4, use it exactly as is. Lip movements are strictly synchronized with every syllable of the audio. Do not change the original audio content, speed, or lines. Video 1 is a 21-second BLACK SCREEN with the approved Russian dialogue audio. Use ONLY its sound; never show its black pixels, never copy a scene from it. Preserve every voice, syllable, speed...