How to convert Flash Video (FLV) to Opus
- 1
Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
- 2
Convert Flash Video (FLV) to Opus
NexMedia converts Flash Video (FLV) to Opus on its own servers. Processing time depends on the file size and how busy the queue is.
- 3
Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About Flash Video (FLV)
Flash Video (FLV) is the container Adobe Flash Player used to stream video on the web, typically with H.264 or the older Sorenson Spark and VP6 codecs.
Videos saved from websites of the Flash era and from some older streaming and recording tools.
Adobe ended Flash Player at the end of 2020 and browsers removed it, so FLV files need a converter or a desktop player such as VLC.
Convert FLV to Opus online free, no account required — Opus is a modern open lossy codec for speech and music.
Change FLV to Opus without losing quality — convert FLV to Opus free in your browser.
Why won't my old FLV videos play anywhere anymore? Flash Player was retired at the end of 2020 and browsers dropped support, so the only practical way to keep them is converting to MP4.
About Opus
Opus is an open, royalty-free lossy audio codec standardised by the IETF in 2012 (RFC 6716). It handles both speech and music well, from very low to high bitrates.
Voice and video calls, WhatsApp voice messages, WebRTC, and the audio track of WebM videos.
Opus always decodes at 48 kHz, and some older players and devices do not support it.
Why convert voice recordings to Opus? It stays clear at very low bitrates, so calls and dictation shrink dramatically without becoming hard to understand.
What changes when you convert FLV to Opus
- The soundtrack of the FLV is re-encoded as Opus at the default settings, so it is close to the original but not bit-identical.
- Only the sound is kept: the Opus file contains the audio track of your FLV, and the picture is dropped.
Settings you can change
Before you convert FLV to Opus, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted Opus file is kept for 2 hours, then deleted.
FLV to Opus: questions and answers
Does converting FLV to Opus reduce quality?
The soundtrack of the FLV is re-encoded as Opus at the default settings, so it is close to the original but not bit-identical.
What is the difference between FLV and Opus?
FLV is the Flash Video format of the Adobe Flash Player era. Opus is a modern open lossy codec for speech and music.
Can I change the settings when converting FLV to Opus?
Before you convert FLV to Opus, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Do I need an account to convert FLV to Opus?
No. You can convert FLV to Opus without an account; signing in raises the file-size and daily limits.
How long is my converted Opus file kept?
The Opus file you convert from FLV is kept for 2 hours, then deleted automatically.
When I convert FLV to Opus, can I keep just the sound?
Only the sound is kept: the Opus file contains the audio track of your FLV, and the picture is dropped.
Will converting FLV to Opus change my original file?
No. The conversion reads your FLV and writes a new Opus file, leaving your original FLV file untouched.