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QuestionWindows Media codecs

  • Monday, October 09, 2006 7:45 AMMahoor Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    Hello

    I want to know :

    Which "Windows Media codecs"  does conference xp use for audio codec(compression)?

    thanks

     

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  • Tuesday, October 10, 2006 2:46 PMJason Van Eaton - MSFTMSFTUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    Windows Media Audio V2

    However, there are only 3 media types per channel (mono and stereo) in the list that are actually low latency.  I'm pretty sure it is documented in the source code, but for immediate reference, they are index [5], [14], [17], [20], [22], [38] of the pre-connect media types offered by the compressor.

    Trust me, this was a nightmare to figure out.

    JVE

     
  • Wednesday, October 11, 2006 6:17 AMMahoor Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    Where do i find source code document , and download it?

    thanks alot.

     
  • Wednesday, October 11, 2006 2:54 PMJason Van Eaton - MSFTMSFTUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    On our web site (http://research.microsoft.com/conferencexp).  Please make sure the license agreement applies to your situation.

    JVE

     
  • Thursday, October 12, 2006 8:08 AMMahoor Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    there is source code in this link, but document is not available.
     
  • Thursday, October 12, 2006 5:06 PMJason Van Eaton - MSFTMSFTUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    Oh, we don't have great documentation.  I think we have a help file somewhere that was generated by Visual Studio and the doc comments in C#, but it isn't great.

    You might want to watch my video from the 2005 Developer's Workshop.

    Or you can just ask questions here.  :-)

    JVE

     
  • Tuesday, October 31, 2006 5:27 AMhgabor47 Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    Hi,
    Where Can I change the audio compressor bitrate? I can see some uncompressed format, but all minimal datarate 64kbps. I think for an phone quality enough 10-20 kbps (some compressor).
    Can I decrement the audio bitrate?
     
  • Tuesday, October 31, 2006 3:14 PMJason Van Eaton - MSFTMSFTUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    For uncompressed, you have a range of choices.  For compressed, we only have 2 hardcoded choices, one for 1 channel streams and one for 2 channel streams.

    JVE

     
  • Monday, February 02, 2009 3:32 AMJFeghali Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    FWIW... Now that CXP 5 can do uncompressed audio, it also appears to handle all of the indices that JVE mentions here. Wish I had looked at his post before spending hours testing those indices - but there you are... Looks like the ones I came up with are the same as Jason's, except that index [25] appears to work with low latency as well. At the moment CXP5 is hard-coded with 3 indices, but the other ones should be incorporated on the next release if they pass testing.

    Indeed - it was a nightmare to figure these out...

    JF
    Jose Feghali - TCU SoM
     
  • Sunday, June 28, 2009 2:19 AMrankminank Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    WINDOWS MEDIA CODEC...i think it's include bundle software from microsoft...


    by yosaadi.blogspot.com