The .rmvb filename extension refers to the RealMedia variable bitrate format which is an extension of the RealMedia multimedia container format. RMVB is a proprietary multimedia digital container developed and maintained by RealNetworks, an internet streaming Media Company. It is different from its closely related format .rm in that it was designed for distribution of complete multimedia content, however it does support real-time media streaming. Video and Audio streams can be encoded and packaged into this format and distributed as single files for later playback on compatible devices and software as opposed to file streaming on high bandwidth networks.
The FLAC file format associated with the .flac filename extension refers to the FLAC audio encoding algorithm. FLAC is the acronym for Free Lossless Audio Codec. The algorithm is from the lossless audio compression family of formats for digital audio compression. It was developed by the Xiph.Org foundation, a non-profit organization that produces open and free to use multimedia formats, and had its initial release in 2001. Though there isn't widespread compatibility for the format as compared to similar formats such as MP3, the FLAC format enjoys some compatibility and support with in car and home stereo manufacturers as well audio playback software and portable audio devices.
FreeFileConvert uses tuned encoding for RMVB to FLAC conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload RMVB files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized FLAC results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent FLAC audio with dependable progress tracking.
.rmvb files use proprietary video and audio compression encoding formats comparable to the MPEG-4 Part 10 standard such as H.264/MPEG-4 AVC format. Byte ordering for the RMVB format is big endian and consists of a series of chunks. The first chunk is always the real media file header.
The FLAC compression algorithm has a claimed compression effectiveness of between 50 and 60%, and is able decompress audio streams to a bit for bit identical facsimile of the original. The FLAC format supports metadata tagging including other features such as seeking, album or cover art. Decoding information is stored in each FLAC frame, this makes the format particularly suited to streaming over computer networks.
Upload your video file in the RMVB format from your device, Dropbox, or Google Drive.
Select FLAC as the output format and click Convert. Adjust optional settings if needed.
Download the converted audio file. Each file stays available for up to 5 downloads.