To sync audio and video in Premiere Pro, import the files, select the clips, right-click, and choose Synchronize using audio waveforms or timecode. Trim with the Razor Tool, balance levels with the Audio Clip Mixer, and clean up noise in the Essential Sound panel. Add fades or crossfades for smooth transitions and preview to ensure perfect sync.

• Import both audio and video clips into the timeline.
• Right-click and select Synchronize to auto-align based on audio waveforms.
• Manually adjust with the Selection Tool if needed.
• Use the Razor Tool to cut and trim for precise sync.
• Fine-tune in the Audio Clip Mixer for balance.