flv (nellymoser) audio to mp3 - everyone's doing it.... how??

Hi,

I've noticed that sites like audioblog.com, podomatic.com, odeo.com, etc. are all using flashcom server to record audio via a web page, and are then instantly making that audio available as mp3 files.

I've researched this thoroughly, and cannot find a *programmatic & scalable* solution to this anywhere. Some people have mentioned ffmpeg, but it doesn't support the nellymoser codec. Most say it can't be done, but that's got to be rubbish, as the sites I listed *are* doing it right now! Obviously, I could be missing something, and they might not be acheiving it through conversion (can you trick flash *not* to use the nellymoser codec? changing the bitrate doesn't seem to work). Any help/direction with this would be much appreciated!!! It's the only link missing in a new app I'm building, hence my frustration :-/

Thanks in advance :)

Hello Nomadica,
we have the same problem. Did you find a solution? I thought maybe its done via a conversion from FLV to SWF and then to Mp3?
I would be greatful for a tip. My client saw the sites you mentioned and wants us to do this, but we are stuck as you were.

Also, I heard Adobe is about to release a converter, but its delayed for weeks now and it will only be an Alpha.

Anyone else has an idea how we can make Mp3's out of the FLV's created by Flash Media Server?

Thanks in advance

Chris

it's not really possible right now due to the stupid 'I-lock-you-in' Nellymoser codec. We've got to wait until the promised converter shows up on labs...

Talking to NellyMoser today. They seem to have a decoder. Will keep you updated.

Chris

Hi Chris (cygen),
Is there any new from NellyMoser (about decoder)?
Best regards,
Yaroslav.

Yep, we got the decoder from Nelly Moser and we could make it work. Check out http://www.travelgoat.com and hit Recorder to see the example. Unfortunately the decoder is pretty pricey. We will have to pay $7500 for it. This seems to be the only way to make this work. If you need it contact Nelly Moser. They'll get back to you and may even send you an evaluation copy of the decoder.

Hi Chris (cygen) again,
Would you drop me an email with your email addrees - I would like to ask some details not in open forum, if possible.
Drop me a line to: yar1bc [AT] yahoo.com . Thank you!
Yaroslav.

Hi Chris
I have also some questions to you could you email me wiktor [at] implix.com?
Wiktor

thsi program http://www.softcab.net/soft/Utilitie...Converter.html
also seems to accomplish Nellymoser flv conversion - not sure how as I doubt they've paid Nellymoser...

does it actually HAVE to be an mp3? because if not, you can do this. go the same route as you would for capturing video, except on the recording stream, only attach the audio to it. no video. then when playing, only stream the audio, no video. for example:

Code:

---

var nc=new NetConnection();
nc.connect("rtmp://localhost/myapp");
var ns=new NetStream(nc);

ns.attachAudio(Microphone.get());
ns.publish("filename_for_stream", "record");

//now for playback
movie_clip_instance.attachAudio(ns);
ns.play("filename_for_stream");

---

i think that should work. its untested, but give it a go

I have created a google page to describe this problem:
http://nellymoser.codec.googlepages.com/

Quote:

---

Originally Posted by taowen

I have created a google page to describe this problem:
http://nellymoser.codec.googlepages.com/

---

yeah, i've noticed you've been doing that a lot. :D

Hey cygen. Would you mind sending me an email to ichidan256 AT yahoo DOT com. I, like many of the others would like to ask you some questions pertaining to this Nellymoser codec.

www.flv2mp3.com - check it out

Total Video Converter will convert FLV files that were recorded by the flash player and hence use Nellymoser encoding.

Here is a complete tutorial
http://blog.andrewpaulsimmons.com/20...-to.html#links

I wanted to also mention that we use Total Video Converter on our server. It has a command line interface.

hi,

there's an open source nellymoser decoder available here:

http://code.google.com/p/nelly2pcm/downloads/list

enjoy!

i hope you know that nellymoser is a protected codec mp3 is also protected you have to pay royalties to use either of those codecs not a huge issue if you are converting it at home but if you are planning to use it in a production environment then you need to pay the royalties else risk being sued
the only open codec that i would convert to is ogg vorbis (.ogg)