MP4 to OPUS Converter
Select files for conversion or just drag and drop them to the upload area
How to convert MP4 files to OPUS online?
Click "Choose File" button to select a mp4 file on your computer. MP4 file size can be up to 50 Mb.
Convert MP4 to OPUS
Click "Convert" button to start conversion.
Download your OPUS
When the conversion process is complete, you can download the OPUS file.
Information about MP4 and OPUS file formats
|Full name||MP4 - MPEG-4 Part 14||OPUS - Opus Audio Format|
|File extension||.mp4, .m4a, .m4p, .m4b, .m4r, .m4v||.opus|
|Developed by||International Organization for Standardization||IETF codec working group|
|Type of format||Media container||Audio|
|Description||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.||Opus is a lossy audio coding format developed by Xiph and standardized by the IETF, designed to efficiently code speech and general audio in a single format, while remaining low-latency enough for real-time interactive communication and low-complexity enough for low end ARM3 processors.|
|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).||Opus supports constant and variable bitrate encoding from 6 kbit/s to 510 kbit/s, frame sizes from 2.5 ms to 60 ms, and five sampling rates from 8 kHz (with 4 kHz bandwidth) to 48 kHz (with 20 kHz bandwidth, the human hearing range). An Opus stream can support up to 255 audio channels, and it allows channel coupling between channels in groups of two using mid-side coding.|
|File conversion||MP4 conversion||OPUS conversion|
|Associated programs||Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player||FFmpeg, AIMP, Amarok, cmus, foobar2000, Mpxplay, MusicBee, SMplayer, VLC media player, Winamp|