MP4 to M4A - Convert audio online
Conversion Results:
| # | Output File | Source File | Action |
|---|
How to convert MP4 to M4A:
1. Click the "Choose Files" button to select multiple files from your local device, or click the "URL" button to choose an online file. The source file can also be video format. Video and audio file size can be up to 200M. You can use the file analyzer to get the source audio's detailed information such as track name, genre, bitrate, and sampling rate.
2. Set the target audio format, bitrate, and sample rate. The target audio format can be WAV, WMA, MP3, OGG, AAC, AU, FLAC, M4A, MKA, AIFF, OPUS, or RA.
3. Click the "Convert Now!" button to start batch conversion. It will automatically retry conversion on another server if one fails; please be patient while converting. The output files will be listed in the "Conversion Results" section. Click the icon to show the file QR code or save the file to cloud storage services such as Google Drive or Dropbox.
MP4 vs M4A:
| Name | MP4 | M4A |
| Full name | MPEG-4 Part 14 | Audio-only MPEG-4 |
| File extension | .mp4, .m4a, .m4p, .m4b, .m4r, .m4v | .m4a |
| MIME | video/mp4 | video/mp4 |
| Developed by | International Organization for Standardization | International Organization for Standardization |
| Type of format | Media container | Media container |
| Introduction | MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet.MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet. | MPEG-4 Part 14 or MP4 is a digital multimedia container format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. M4A stands for MPEG 4 Audio and is a filename extension used to represent audio files. |
| Technical details | Most kinds of data can be embedded in MPEG-4 Part 14 files through private streams. A separate hint track is used to include streaming information in the file. The registered codecs for MPEG-4 Part 12-based files are published on the website of MP4 Registration authority (mp4ra.org). | Audio-only MPEG-4 files generally have a .m4a extension. This is especially true of non-protected content. M4A is often compressed using AAC encoding (lossy), but can also be in Apple Lossless format. |
| Associated programs | Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player | Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player |
| Sample file | sample.mp4 | sample.m4a |
| Wikipedia | MP4 on Wikipedia | M4A on Wikipedia |