How to convert FLV to MP3 without losing any quality (demux/extract MP3 from FLV)

[KSV]

Originally Posted by gimgim

I found a software named "FLV Extract" which is perfect to extract the mp3-Track from my downloaded FLV-Video. But, when I try to extract only the video, FLV Extract gives me a short video of the whole video file (20 min instead of 50 minutes).

"FLV Extract" extracts raw streams of audio and video. you must put those streams in appropriate container before checking their duration.

[gimgim]

Originally Posted by KSV

you must put those streams in appropriate container before checking their duration.

How can I do that? Can you give an advise?

[KSV]

with MP4Box

MP4Box -add "video stream.h264":fps=25 output.mp4

put correct stream name and fps value for your video.

[placebo]

for users who dont like to code or type, a simple GUI for lossless packaging of RAW audio data (or RAW video data) is yamb. i even prefer that to fixing FLV's with FLV Fix tools.

For example, when you (losslessly) extract *.264 and *.aac with FLVExtract and you then try to package them as *.mp4 with yamb, then use the "Avg Frame Rate" (and not the "True Frame Rate") displayed by FLVExtract. yamb sometimes ask you to enter "frame rate", sometimes it doesnt.

If the MP4 is still out of sync (audio vs. video), then use as "frame rate" the "videoframerate" as seen by "FLV Fix" (Replay Media Catcher 4) after you have fixed the FLV with "Fix Duration".

Any way to extract MP3/AAC from FLV on a Mac?

[any ANONYMOUS forum user]

Originally Posted by alfred61@hotmail.co.uk

Any way to extract MP3/AAC from FLV on a Mac?

http://stream-recorder.com/forum/sho...06&postcount=2

[JOSEPH]

There are many online site which are very much helpful to do that and you case use file converter to convert your files into a known readable format for windows. Thanks

[coco]

one of the best convert program for music , which i used it's Replay Converter, converting different formats of music and video ) u have to try)

[Stream Ripper]

Have you tried Replay Media Catcher ?

I use it all the time for extracting mp3 from video, and it works perfectly each time!

[wihensery]

This was another post I found valuable. It also explains how to convert flv to mp3 files. Good tutorial as well.

It also helps convert FLV to other popular video and audio formats like MP4, AVI, MOV, WMV, WAV, AAC, AC3, FLAC, etc.