Re: [Red5] Decoding audio streamed from the client

Tue, 03 Oct 2006 20:15:57 -0700

We did a test application which made something similar to this

2 streams were played on a flash player  (it could even be different players
and on another browser window another flash player recorded the new stream using the Recording option of Stereo Mix of the soundcard  , sent the new stream ...

output was kind of strange imagine everybody speaking at the same time, but worked.

hth
 
Rodrigo O
Xnet

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dominick Accattato
Sent: Martes, 03 de Octubre de 2006 10:27 a.m.
To: [email protected]
Subject: Re: [Red5] Decoding audio streamed from the client

Red5 doesn't do that, but it does get me thinking into how much data we could fit into each tag.  For instance, as the audio is coming in, we just write it to one stream tag.  That much is possible, however, I'm not sure how it would come out on the other end.  This may be doable..   keyword being may.  However, I don't think it will be a priority for the core server and would most likely have to be implemented on your end.

The simpler way is to just record each stream and play each stream back.

On 10/2/06, Steven Gong <[EMAIL PROTECTED]> wrote:


On 10/3/06, Peter Gober < [EMAIL PROTECTED]> wrote:
Hello everybody,

we would like to implement a Flash conference-call-style application, in
which the voices of several users are streamed to a server, mixed together
and streamed back in real time.

Mixing the voices requires us to access the individual audio samples, i. e.
we have to somehow decode the audio stream.

I have so far only a vague understand of RTMP and Red5. Is it possible to do
what we want with Red5 as is? If not, what are the main difficulties if we
tried to implement such a function in Red5? (E. g. is the format known in
which Flash encodes audio?)

The major obstacle to achieve this is the lack of the knowledge of codecs. Red5 doesn't support this because the audio codec is proprietary.

Thank you in advance -

Peter


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I cannot tell why this heart languishes in silence. It is for small needs it never asks, or knows or remembers.  -- Tagore

Best Regards
Steven Gong
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