Fraunhofer IIS MP3 Surround Evaluation Software 1.0

Key Features

* Encoding and decoding of MP3 Surround files
* Full multi-channel capability (5.1 format)
* Complete backward compatibility to existing MP3 players and devices
* Data rates for multi-channel sound comparable to those for current stereo MP3

(emphasis mine)

EDIT: Also be aware that the encoder "expires" on Dec. 31st 2005. The download includes a Winamp decoder plugin, which I believe never "expires".

http://www.hydrogenaudio.org/forums/index....showtopic=29783

foobar2000 plugin available as well now, if you feel like playing around with this _____

Did you give it a try because it show as 2 channel mp3 in winamp and foobar
properties.

i dont have 5.1 speakers can some one try out the samples at there site
http://www.iis.fraunhofer.de/amm/download/...termsofuse.html

and let us know whether they are really 5.1

while playing the file in mp3surround player the progress bar moves and time is
displayed but no audio is heard.

Did you use the aforementioned decoders? It works fine and plays 5.1 for me in both foobar2000 and the included player program. It is reported as stereo by foobar2000's properties but it is indeed 5.1 and plays in 5.1.

the decoder which is there with the fraunhofer installer is it.

are you sure the mp3 are 5.1 and not stereo as reported to me by foobar and dbpoweramp and winamp.

is the mp3 surround player working which is provided with the fraunhofer package.
because it plays the file but no audio is heard.

Please confirm.

I just did in my previous post.

Using my foo_mp3s I assume?

That's a known "issue", I opted to make the plugin set channels = 2, mp3surround = yes instead of reporting channels = 6 because technically an mp3surround file is not actually a 6 channel file: it does not contain 6 channels - it contains 2 channels and hints for the synthesis of additional channels based on these two channels.

By the way, at this point the output format is 5.1 mostly because the FhG demo decoder is locked to this number - for regular oldschool stereo mp3s without surround info it would output six channels as well, filling the surround channels with silence.

Yes I used your plugin. It is good to know that the "stereo" tag is a result of semantics instead of some bug.