Convert MP4 to AAC Online
Free, easy-to-use MP4 to AAC converter. Extract high-quality audio from your video files quickly and securely.
MP4 to AAC Converter
Convert your MP4 files to AAC format quickly and easily. Upload your file and download the result.
Max file size: 50MB
Why Extract AAC Audio from MP4 Videos?
Extracting AAC audio from MP4 videos serves many practical purposes. Whether you want to listen to just the audio portion of a video, create a podcast from video content, or need the audio track for another project, our MP4 to AAC converter makes the process simple and efficient.
Benefits of Converting MP4 to AAC
- High-quality audio extraction - AAC maintains excellent audio quality at lower bitrates
- Smaller file size - Audio-only files are much smaller than video files
- Wide compatibility - AAC is supported by virtually all modern devices and platforms
- Perfect for podcasts - Create podcast episodes from video content
- Better for streaming - AAC files require less bandwidth than videos
About MP4 Videos and AAC Audio
| Feature | MP4 | AAC |
|---|---|---|
| Full Name | MPEG-4 Part 14 | Advanced Audio Coding |
| Type | Container Format | Audio Codec |
| Typical Content | Video with audio | Audio only |
| File Size | Larger (contains video) | Much smaller (audio only) |
| Primary Use | Video playback | Audio playback |
| Typical Quality | Varies based on encoding | High quality at low bitrates |
Interestingly, many MP4 files already use AAC as their audio codec. Our converter intelligently extracts this AAC audio stream when possible, avoiding unnecessary transcoding to maintain the highest quality. When the source MP4 uses a different audio codec, our converter efficiently transcodes it to AAC with optimal settings.
Other Audio Extraction Options
Frequently Asked Questions
Will I lose audio quality when converting MP4 to AAC?
If the original MP4 file already uses AAC audio (which is common), our converter will extract that audio stream directly without re-encoding, meaning no quality is lost. If the MP4 uses a different audio codec, some minimal quality loss may occur during transcoding, but AAC is designed to provide excellent audio quality even at lower bitrates.
What's the difference between AAC and MP3?
AAC (Advanced Audio Coding) is generally considered superior to MP3, offering better sound quality at the same bitrate. AAC can reproduce more frequencies and typically provides clearer audio, especially for complex sounds. AAC is also the default audio format for YouTube videos, iTunes, and is used by services like Apple Music.
How do I play AAC files?
AAC files are widely supported by most modern devices and media players. They play natively on iPhones, iPads, Android devices, Windows Media Player (with the right codecs), iTunes, VLC Media Player, and many other applications. AAC files typically have the .aac file extension, though they are sometimes packaged in an .m4a container as well.