Could someone point me to the right newsgroup and/or url to get some help with determining the quality parameters for streaming wmv (via wvx) from our website? I think we've settled on 512 kbps, but I am still looking for some more definitive standards or counsel besides our own conclusions drawn from experiments.
On Sat, 28 Jun 2008 18:06:00 -0700, SteveR wrote: >Could someone point me to the right newsgroup and/or url to get some help >with determining the quality parameters for streaming wmv (via wvx) from our >website? I think we've settled on 512 kbps, but I am still looking for some >more definitive standards or counsel besides our own conclusions drawn from >experiments. Experimentation is usually the best option here. Many of the encoding parameters can result in subjective changes and are content-dependent. There really is no one-size-fits-all, and if you're producing one-off content it's better to manually optimise that - if you're looking to stream generic content a-la youtube then pick a value which seems right, and which you know you can deliver reliably to the intended audience size (100 concurrent viewers ? 1 million ?) This article covers some of the more advanced settings available : http://www.microsoft.com/windows/windowsmedia/howto/articles/AdvancedEncoding.aspx The value you've chosen seems particularly artificial (being a binary power of 2) and a lot of content can be streamed successfully at ~350kbps for QCIF (320x240 size) content, allowing for about 300kbps video and 48kbps audio. HTH Cheers - Neil ------------------------------------------------ Digital Media MVP : 2004-2008 http://mvp.support.microsoft.com/mvpfaqs
Thank you for the very informative reply, Neil. ------------------ "Neil Smith [MVP Digital Media]" wrote: > On Sat, 28 Jun 2008 18:06:00 -0700, SteveR > wrote: > > >Could someone point me to the right newsgroup and/or url to get some help > >with determining the quality parameters for streaming wmv (via wvx) from our > >website? I think we've settled on 512 kbps, but I am still looking for some > >more definitive standards or counsel besides our own conclusions drawn from > >experiments. > > > Experimentation is usually the best option here. Many of the encoding > parameters can result in subjective changes and are content-dependent. > > There really is no one-size-fits-all, and if you're producing one-off > content it's better to manually optimise that - if you're looking to > stream generic content a-la youtube then pick a value which seems > right, and which you know you can deliver reliably to the intended > audience size (100 concurrent viewers ? 1 million ?) > > This article covers some of the more advanced settings available : > http://www.microsoft.com/windows/windowsmedia/howto/articles/AdvancedEncoding.aspx > > The value you've chosen seems particularly artificial (being a binary > power of 2) and a lot of content can be streamed successfully at > ~350kbps for QCIF (320x240 size) content, allowing for about 300kbps > video and 48kbps audio. > > HTH > Cheers - Neil > ------------------------------------------------ > Digital Media MVP : 2004-2008 > http://mvp.support.microsoft.com/mvpfaqs >
