Rescue Audio from Flash Videos
You have old FLV files-maybe downloaded videos, screen recordings, or content from the Flash era-and you want just the audio. Converting FLV to AAC extracts the sound in a modern, high-quality format that plays on any device.
Flash Video was everywhere from 2002 to 2017. Now Flash is dead, but your FLV files still contain perfectly good audio. AAC (Advanced Audio Coding) is the logical extraction format-it offers better quality than MP3 at the same file size and works on every modern device and platform.
How to Convert FLV to AAC
- Upload your FLV file - Drag and drop or click to select your Flash video
- Confirm AAC output - AAC is selected as your target audio format
- Download your audio - Get your extracted AAC file instantly
The entire process takes seconds. No software installation, no account creation, no waiting.
Why Choose AAC Over MP3?
When extracting audio from video, format choice matters. Here's why AAC beats MP3:
- Better sound quality - AAC produces cleaner audio at the same bitrate. A 128kbps AAC file sounds like a 160kbps MP3
- Smaller file sizes - Get equivalent quality with roughly 25% less storage space
- Modern standard - AAC is the default audio format for YouTube, Apple Music, and most streaming services
- Full compatibility - Plays on iOS, Android, Windows, Mac, and all modern browsers
In our testing, audio extracted as AAC from FLV files consistently sounded more detailed than the same content converted to MP3, especially in the high frequencies.
Common Use Cases
Saving Music from Old Videos
Downloaded music videos as FLV years ago? Extract the audio tracks to AAC format and add them to your music library. The video portion is discarded, leaving you with just the audio.
Archiving Podcast or Lecture Audio
Educational content, podcasts, and recorded presentations from the Flash era can be preserved as audio-only files. AAC keeps the quality high while dramatically reducing file size compared to keeping the full video.
Creating Audio for Projects
Need audio from an old FLV for a video project or presentation? Extract it as AAC and import it directly into your editing software. Most modern editors handle AAC natively.
What About Quality?
The audio quality you get depends on the original FLV file. We extract and convert at high bitrate settings to preserve as much quality as possible from your source material.
FLV files typically contain audio encoded as MP3 or AAC already. When the source uses AAC, our conversion is nearly lossless. When the source uses MP3, we re-encode at high quality to minimize any additional compression artifacts.
If you need uncompressed audio for professional editing, consider FLV to WAV instead. WAV is lossless but creates much larger files.
Alternative Formats
AAC is the best choice for most users, but alternatives exist:
- FLV to MP3 - Wider compatibility with older devices, but lower quality at same bitrate
- FLV to WAV - Uncompressed audio for professional editing workflows
- FLV to M4A - Same AAC codec in Apple's container format, ideal for iTunes
For general listening on phones, tablets, and computers, AAC is the optimal balance of quality and file size.
Works in Any Browser
Our converter runs entirely in your browser. No software to download, no plugins to install:
- Windows, Mac, Linux, Chromebook
- Chrome, Firefox, Safari, Edge
- iPhone, iPad, Android tablets and phones
Your FLV files are processed locally. They never leave your device, and the resulting AAC files download directly to your computer or phone.