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?

Step 1.

Upload MP4-file

Click "Choose File" button to select a mp4 file on your computer. MP4 file size can be up to 50 Mb.
Step 2.

Convert MP4 to OPUS

Click "Convert" button to start conversion.
Step 3.

Download your OPUS

When the conversion process is complete, you can download the OPUS file.

Information about MP4 and OPUS file formats

Name MP4 OPUS
Full name MP4 - MPEG-4 Part 14 OPUS - Opus Audio Format
File extension .mp4, .m4a, .m4p, .m4b, .m4r, .m4v .opus
MIME type video/mp4 audio/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
Wiki https://en.wikipedia.org/wiki/MPEG-4_Part_14 https://en.wikipedia.org/wiki/Opus_(audio_format)
MP4 to OPUS conversion quality rating:
4.9 (1715 votes)
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