To turn a video into a podcast episode, extract its audio as a WAV file, trim what only made sense with the picture, clean up and level the voice, bring the loudness to about -16 LUFS with peaks at or below -1 dBTP, and export an MP3. Work in WAV until the last step, so the audio is compressed only once more.
In Short
The short version:
- Extract: MP4, MOV, WebM or M4V to WAV, in your browser.
- Trim: cut countdowns, visual-only moments and long pauses.
- Clean: reduce noise and even out the volume.
- Loudness: about -16 LUFS, true peak at or below -1 dBTP.
- Export: MP3, 128 kbps or more for stereo, 64 kbps or more for mono.
How to Turn a Video into a Podcast Episode in 5 Steps
You only need a browser. Nothing is uploaded, and each step uses its own tool.
Step 1: Extract the Audio as WAV
Open the converter that matches your file: the MP4 to WAV Converter for most videos, the MOV to WAV Converter for iPhone and Mac recordings, the WebM to WAV Converter for browser screen recordings or the M4V to WAV Converter. Choose WAV, 16-bit as the output and download the file.
Step 2: Trim What Only Works with the Picture
Load the WAV into the Audio Trimmer. Cut the countdown or silence at the start and the wave goodbye at the end, and remove sections where you point at the screen or say nothing while something is shown.
Step 3: Clean Up the Voice
Camera and laptop microphones pick up the room. Reduce steady noise and even out the volume with the Sound Optimizer; if breaths and background noise between sentences bother you, use the Noise Gate & De-Esser.
Step 4: Set the Loudness
Raise or lower the level until the episode measures about -16 LUFS with a true peak at or below -1 dBTP. The LUFS & Peak Analyzer shows both values for the finished file.
Step 5: Export an MP3
Convert the finished WAV with the WAV to MP3 Converter. 128 kbps is enough for a spoken stereo episode; choose 192 kbps if the episode contains a lot of music.
Why Extract to WAV First, Not Straight to MP3?
The sound in a video file is already compressed, usually as AAC. If you extract it as MP3, edit that MP3 and export an MP3 again, the audio has been through lossy compression three times, and each round removes a little more. Extracting to WAV does not improve the sound, but it stops the losses: you can cut, clean and save as often as you like, and the audio is compressed only once more, at the very end. If you just want to listen to the audio of a video and are not going to edit it, extracting directly to MP3 is fine; the video converters offer that as an output too. WAV vs. FLAC vs. MP3 explains the formats in detail.
What Is Inside a Video File?
An MP4, MOV or WebM file is a container: a wrapper that holds a video stream and one or more audio streams side by side. Extracting the audio means reading the audio stream and leaving the picture behind; nothing is re-recorded. This is also why extraction sometimes fails: the container may hold audio in a format your browser cannot decode. Recordings from phones, cameras, screen recorders and video-call apps use AAC or Opus and work; films with Dolby Digital or DTS sound do not.
| Where the video comes from | File type | Audio inside |
|---|---|---|
| Phone or camera | MP4 (MOV on iPhone) | AAC |
| Zoom, Teams or Google Meet recording | MP4 | AAC |
| Screen recording in the browser | WebM | Opus |
| Screen recording on a Mac | MOV | AAC |
| Export from iMovie or HandBrake | M4V or MP4 | AAC |
Loudness and File Format for Podcast Apps
An episode that is much quieter or louder than others stands out at once, and listeners have to reach for the volume. Apple Podcasts recommends an overall loudness of around -16 LKFS, give or take 1 dB, with a true peak that does not exceed -1 dB (LKFS and LUFS are the same unit). Aim for that and your episode will sit at a comfortable level in other apps as well.
For the file itself, Apple accepts MP3 or AAC in RSS feeds and recommends 128 to 256 kbps for stereo and 64 to 128 kbps for mono, at 44.1 or 48 kHz. Speech does not need more: a talk-only episode sounds clean at 128 kbps in stereo, and mono halves the file size when both channels carry the same voice. You can make a mono file with the Stereo to Mono Converter.
Tips for Audio That Came from Video
- Explain what viewers saw. When you say “as you can see here”, listeners are lost. Cut those passages or record a short spoken bridge.
- Check both channels. Some cameras record the microphone on one side only. If the voice comes from the left or the right, convert the file to mono.
- Tame the room. Built-in microphones sound distant. A gentle low cut and a little compression in the Sound Optimizer bring the voice forward; How to Make Your Voice Sound Professional goes into detail.
- Use only audio you have the rights to. Your own recordings are fine. Music in the video needs a license that covers podcasts, and other people’s videos are not yours to republish.
Extract Your Audio Now
Add a video, choose WAV and download the audio track. Nothing is uploaded.
Open the MP4 to WAV ConverterFree, no sign-up, and your files never leave your device.