Windows Media 9 Audio

Ron Lucas schrieb am 07.02.2003 um 23:11 Uhr

Has anyone been using the new Windows Media 9 Series stuff? Microsoft says the new Windows Media Audio 9 codec (not the Professional one) is backward compatible with older Windows Media Players. I want to render video from V4 in WMV format, using the Video 7 codec since many people will have not upgraded to the 9 series yet. I have already installed the new 9 player and encoder from Microsoft so I no longer have the choice for the audio 7 codec. Since the audio 9 codec is supposed to be compatible with older media players, I'm wondering if anyone can confirm that it is without the older players having to download anything.

Also, when I render to WMV in V4 I can choose one of two Audio 9 flavors with the same bandwidth settings:

1 - 1Pass CBR
2 - (A/V) 1Pass CBR

Which one of these should I be choosing to maintain compatibility with older media players?

Thanks,
Ron

Kommentare

SonyDennis schrieb am 07.02.2003 um 23:28 Uhr

They said it's compatible with the players, they did not say you wouldn't need to download anything. I think WMV 9 requires a new codec download, which will be automatic for those on the net at the time. I'm pretty sure WMA is decode-locked at version 8 (even though the WMA 9 encoder is "better" the decode syntax was locked at 8) so audio only probably won't download a WMA 9 codec.
///d@

SonyTSW schrieb am 07.02.2003 um 23:59 Uhr

ral8667,

> Also, when I render to WMV in V4 I can choose one of two Audio 9 flavors with the same bandwidth settings:
>
> 1 - 1Pass CBR
> 2 - (A/V) 1Pass CBR

In the Vegas 4 beta, it doesn't matter which of the above you choose. The WM9 plugin will determine at render time the correct one to use.

In the Vegas 4 release, the choices are properly filtered in the Windows Media 9 custom dialog so that you see only (A/V) for WMV audio and the other (without A/V in the text) for WMA.

Chanimal schrieb am 08.02.2003 um 09:03 Uhr

I am not very pleased with Windows Media 9 at this point. During my internal usability test of a video I created in mpeg2, progressive, high-quality, rest default, the audio ran slow (on a Win2k system). I noticed today that my mp3 files are running slow with MP9. I switched to a different player and the audio was fine.

Ron Lucas schrieb am 09.02.2003 um 03:34 Uhr

I think you're right.

From V4, I rendered a WMV file with the video 7 codec and the audio 9 codec (since there is not other audio codec choice). I put the video on my website and asked a friend with Win98 and media player 7 to view the video while paying attention to see if media player attempts to download any new codecs. My friend said media player 7 played the file without downloading anything. I'm glad.

Ron

Paul_Holmes schrieb am 09.02.2003 um 04:59 Uhr

Everybody I've talked to that viewed one of my WM9 videos (relatives, friends) and had not viewed a WM9 Video before got a simple message asking if they wanted to download the codec. Download was quick (almost instant on cable-modem). Maybe your friend had already downloaded it and it had happened so quick he really didn't pay attention to it in the past.

After going back and reading your post, however, I see you encoded with wm9 audio only so perhaps my point is meaningless.

bstaley schrieb am 10.02.2003 um 17:20 Uhr

Here at work I'm stuck with NT 4.0 which only will let me run Media Player 6.4. In the tests that I've done, Windows Media Audio is compatible all the way through the most current version 9. Windows Media Video is only compatible up through version 8. Version 9 will not play on Media Player 6.4. You can however do as I do and encode the video at version 8 while having the audio at version 9. Those of you creating content for NT 4.0 should keep this in mind.