Extract audio from flv to aac
FLV to AAC Converter is the most powerful flv audio extractor which can easily and conveniently convert flv files to aac audio format, advanced audio settings provided! Try it as soon as possible!
Directions:Convert FLV to AAC-Extract audio AAC files from FLV video
Import FLV videos to the audio program
Once Emicsoft FLV Converter is installed, launch it.

Press"Add FLV" button to import your FLV files into the conversion file list. It has been embedded with the proper codecs to avail you to add different FLV files into it, and thus you do not have to install extra codecs or plug-ins to do this.
Select output format
Click on the triangle button in the Profile option, select Audio, and Audio AAC:

To change the output dictionary, please click"Browse" button.
NOTE:You can change audio encoder, sample rate, channels, audio bitrate, etc by press
button.

NOTE: The FLV to AAC has a special function--Downloader which lets you easily download flash videos (*.flv) by inputting the video URL address and convert to other fomrat at the same time. You can just click
button to download videos.
After this, you can click "Start" button to extract the audio from FLV to AAC.