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Windows Server Forum / Windows Media Server / December 2007Streaming wav or raw file
Hi, my situation is that, and I've no Idea how to solve it: I have a server who record audio from ISDN PRI E1/T1 Card(30 channel Simultaneously), this audio is writing in a RAW temp file, and at the end of the registration RAW file is converted to WAV. I have to stream this audio file to 5/10 clients on LAN BEFORE the registration is finish (live streaming). Is this possible with Windows Media Service ? Audio is recorder by ISDN card at 8KHz 8bit. What I have to do ? Sorry for my bad known of english Thanks a lot >Hi, >my situation is that, and I've no Idea how to solve it: [quoted text clipped - 7 lines] >registration is finish (live streaming). Is this possible with Windows Media >Service ? No. WMS requires ASF (WMA / WMV) or MP3 content, there's no support for live transcoding from WAV or "raw" to those contents on the fly . WM Encoder would be used to do this and send the live stream to the server for distribution. But it will need a recognised file format and 4CC header to determine which DirectShow filters to load for decoding the content. RAW probably wouldn't work, so you'd need WAV at least. Theoretically (I haven't tested this) if you were writing a WAV directly, and the file wasn't locked by another user process it *may* be able to read the file while it's being written, but it would still require the 4CC code to be written to the file header before starting to encode. >Audio is recorder by ISDN card at 8KHz 8bit. WME does offer 8khz voice audio encoding profiles - usually it'd expect 16 bits, I'm not sure the quality of 8 bit audio will be very good. Typically those streams can be run from 4-16kbps. HTH Cheers - Neil ------------------------------------------------ Digital Media MVP : 2004-2007 http://mvp.support.microsoft.com/mvpfaqs Thanks Neil, so...what you suggest to do ? Is there another way or another service can do that? Merry Christmas > >Hi, > >my situation is that, and I've no Idea how to solve it: [quoted text clipped - 33 lines] > Digital Media MVP : 2004-2007 > http://mvp.support.microsoft.com/mvpfaqs I can't think of anything apart from trying running the encoder on the WAV file as it's being written to disk, and see if it works. I can't really test this here since I don't have your hardware writing to a disk file, so there's no way for me to reproduce the test conditions. If that doesn't work, I can't think of anything else which would r/now Cheers - Neil >Thanks Neil, > [quoted text clipped - 41 lines] >> Digital Media MVP : 2004-2007 >> http://mvp.support.microsoft.com/mvpfaqs ------------------------------------------------ Digital Media MVP : 2004-2007 http://mvp.support.microsoft.com/mvpfaqs Thanks Neil, last question..where can I find Windows Media Encoder? Is it a part of W2003 server ? Bye Have a happy Christmas > I can't think of anything apart from trying running the encoder on the > WAV file as it's being written to disk, and see if it works. [quoted text clipped - 56 lines] > Digital Media MVP : 2004-2007 > http://mvp.support.microsoft.com/mvpfaqs http://www.google.co.uk/search?hl=en&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=win dows+media+encoder Cheers - Neil >Thanks Neil, > [quoted text clipped - 63 lines] >> Digital Media MVP : 2004-2007 >> http://mvp.support.microsoft.com/mvpfaqs ------------------------------------------------ Digital Media MVP : 2004-2007 http://mvp.support.microsoft.com/mvpfaqs |
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