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List:       ms-wmtalk
Subject:    Re: Problems with Marker Sync in Audio only streamed files
From:       Lee Atkinson <leeatkinson.lists () GMAIL ! COM>
Date:       2005-09-22 8:16:52
Message-ID: 43326877.323a6d14.6863.7381 () mx ! gmail ! com
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Hi Mark - apologies, I forgot that markers are in the header :-o

Is this for other files, or just this one? Are the inaccuracies consistent,
or do they vary?

My thoughts are that there is some discrepancy between the file timings
(which the markers are using) and those within the audio samples. When you
add a video stream, this is used to provide timings instead of the audio.

Perhaps try re-indexing the file and/or use something like asftools?

Lee


Lee Atkinson
Makeni Ltd
http://www.makeni.com
 
 
-----Original Message-----
From: WMTalk [mailto:WMTalk@DISCUSS.MICROSOFT.COM] On Behalf Of Mark Kelley
Sent: 21 September 2005 14:08
To: WMTalk@DISCUSS.MICROSOFT.COM
Subject: Re: Problems with Marker Sync in Audio only streamed files

Thanks Lee.  They are in the header.

-----Original Message-----
From: leeatkinson.lists@GMAIL.COM [mailto:leeatkinson.lists@GMAIL.COM] 
Sent: Wednesday, September 21, 2005 2:19 AM
To: WMTalk@DISCUSS.MICROSOFT.COM
Subject: Re: Problems with Marker Sync in Audio only streamed files


Hi Mark

Are the markers in the script stream or in the header? If possible, try
and move them to the header.

Regards

Lee

Lee Atkinson
Makeni Ltd
http://www.makeni.com
 
 
-----Original Message-----
From: WMTalk [mailto:WMTalk@DISCUSS.MICROSOFT.COM] On Behalf Of Mark
Kelley
Sent: 20 September 2005 20:50
To: WMTalk@DISCUSS.MICROSOFT.COM
Subject: Problems with Marker Sync in Audio only streamed files

I've just noticed we have a problem with out-of-sync markers within an
audio only file and only when that file is streamed.  We've re-created
this problem from 4 servers and it happens each time.

When a new position in the stream is selected by calling a new marker,
the audio jumps to the next marker but usually 1 to 2 and 1/2 seconds
after the marker!  We are using the WM 9 Voice codec

The Markers are right on in the stream and when we call the markers from
a local hard drive or a mounted network drive they are always play
correctly.  And to beat all, this doesn't seem to be a problem if there
is a video stream along with the audio.  

Any ideas? -

Thanks,
Mark

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