HydrogenAudio

Lossless Audio Compression => Lossless / Other Codecs => Topic started by: 2Bdecided on 2008-05-30 15:12:17

Title: WMA lossless encoder and block size
Post by: 2Bdecided on 2008-05-30 15:12:17
I have two questions related to using Windows Media Audio 9 Lossless with lossyWAV, which just maybe someone in this forum section can help with...

1. Does anyone know of a batch / command line / ACM codec for Window Media Audio 9 Lossless?

2. Does anyone know what specific block size (if any) it uses to determine "wasted_bits"? It seems to work well with lossyWAV at 512, but it may use something else internally.

(If you don't know what I'm talking about, here's some information about lossyWAV (http://wiki.hydrogenaudio.org/index.php?title=LossyWAV) if you're interested)

Cheers,
David.
Title: WMA lossless encoder and block size
Post by: Zoom on 2008-05-30 15:28:45
It looks like someone had some success doing something similar with the Windows Media 9 Encoder tool.

http://www.hydrogenaudio.org/forums/index....mp;#entry151777 (http://www.hydrogenaudio.org/forums/index.php?showtopic=14857&st=0&p=151777&#entry151777)

That post has a link to it for the WMEncoder.exe, but the program is no longer on the page from what I could tell. I found it by searching in Google, the download is here:

http://www.microsoft.com/downloads/details...;displaylang=en (http://www.microsoft.com/downloads/details.aspx?FamilyID=5691ba02-e496-465a-bba9-b2f1182cdf24&displaylang=en)

I'm not sure if this will work for you or not, but good luck!
Title: WMA lossless encoder and block size
Post by: Nick.C on 2008-05-30 15:49:20
From memory, WMALSL uses a block-size of 2048 samples.
Title: WMA lossless encoder and block size
Post by: 2Bdecided on 2008-05-30 16:15:02
Thanks Nick.

You're right Zoom - there's a script interface included with the standard download.

e.g.

cscript.exe wmcmd.vbs –input C:\My-songs\Song1.wav –output C:\My-songs-coded\Song1.wma -a_codec WMA9LSL -a_mode 2

Cheers,
David.
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