From: leo@zelator.in-berlin.de (Stefan Hartmann)
Subject: Great MultiMedia with win3.1 and Stereo-WAV !
Organization: Puplic-Access-Xenix-System
Date: Thu, 16 Apr 92 14:26:35 GMT
Summary: mm
Keywords: mm


Hi to all Multi-Media  developers !

I have been playing around the last nights with the new win3.1 release and
it's sound-and -video synchronisation capabilities.

It is gorgious, when You have a Soundcard !

I have a Soundblaster Pro and yesterday I downloaded from Compuserve the
PRO win3.1 drivers. By the way, it is called sbpw31.zip (go multiven) in Lib1.

With the Sounblaster PRO win3.1 sound-drivers it is now possible to sample
with the Sound-recorder from win3.1 a complete song in STEREO with
22 KHz /channel (bandwith aprox. 11 Khz) and to store it as a *.WAV-file.

Then You can synchronize it with the Autodesk waaplay.zip FLI-player for
windows, which loads an animation (yes also bigger screen sizes than 320x200,
e.g.640x480x256) into memory or from the harddisk.
BTW,waaplay.zip is available at ftp.uni-koeln.de(134.95.80.1)in /win3/graphics.

Then You choose : Get Sound  and click on the Stereo-WAV-file.

When You now start the animation by clicking PLAY, video and the Stereo-Audio
starts in Synchronisation !!!!
It is really great !

The only disadvantage: The WAV-files get very huge !
So I sampled about a four minutes song and I got 12 Mbytes of a 22 Khz Stereo-
WAV-file !!

But is is so great: With the media player from win3.1 You can hear the music
still with no interuption, while working in a DOS-Fullscreen-window etc ...

The music keeps on playing and playing ! And 22Khz Stereo sampling rate with
the onboard analog compander system of the Soundblaster PRO does not sound too
bad!
Compared to the original-CD-player sound, there is not too much 
difference !!


Now it is Your turn, all You compression software gurus !
---------------------------------------------------------

Give us a new utility program, that converts Stereo and Mono-WAV-files to an
ATC-file (adaptive transform coding) or something simular, Sony and Philipps
are using for their new Mini-CD and Digital-compact-cassette !!!

So it would be good to have something like a WAV2ATC and a ATC2WAV converter !
                                             -------       -------
Then it would be possible to store good music in the small lossy compression 
ATC-file, with no audible difference to the WAV-file !

For hearing the sound, it still must be first converted, but there could also
be hardware boards, that can do this in realtime !

BTW, with the new Xing technology MPEG-player there is already a great new
video compression available and they also wanna support WAV-audio !

It is fantastic looking at a 320x240 window in 256 colors with a 500 frames
long Indiana Jones movie in MPEG-format  and playing in the background a 4
minutes SOS-Band song ! :-))

So, this was my first impression from win3.1 and its Multi-Media-possibilities!

So hope there will be soon such an utility for sound de/compression !!!

Best regards, Stefan Hartmann, c/o workshop for decentral energy research.

email to: leo@zelator.in-berlin.de    



-- 
 
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*  Stefan Hartmann       This is how to contact me:                           *
*  EMAIL: leo@zelator.in-berlin.de                                            *
*  Phone : ++ 49 30 344 23 66      FAX : ++ 49 30 344 92 79                   *
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Newsgroups: comp.multimedia