RE: [microsound] Portable audio codecs w surround?

[Michael North <michael.north@xxxxxxxxxxxx>]

The following is from the MS site ....but I've used it, and it works....

Windows Media Audio 9 Professional, is a great match for high-fidelity
hardware and computer with 5.1 channel surround sound. It captures
full-resolution audio (24-bit/96-kHz sampling) in stereo or 5.1 channel (and
even 7.1 channel) surround sound for streaming or download-and-play delivery
at 128 to 768 Kbps

Had it wrong on the apple ac3(shouldn't answer emails without enough
sleeptime)...meant AAC | MPEG-4...from their site, the following/also have
used it and it worked....

When compared side-by-side, AAC proves itself worthy of replacing MP3 as the
new Internet audio standard. Take a look at these AAC advantages over MP3:

    * Improved compression provides higher-quality results with smaller file
sizes
    * Support for multichannel audio, providing up to 48 full frequency
channels
    * Higher resolution audio, yielding sampling rates up to 96 kHz
    * Improved decoding efficiency, requiring less processing power for
decode

Real Audio also uses AAC and is as well capable of multi-channel sound, have
used it and it worked.........................




//*-----Original Message-----
//*From: Mr.D [mailto:craque@xxxxxxxxxx]
//*Sent: Tuesday, June 21, 2005 12:31 PM
//*To: microsound
//*Subject: Re: [microsound] Portable audio codecs w surround?
//*
//*AC3 is Dolby Digital, not Apple. So naturally, it does surround.
//*
//*Apple's lossless implementation is m4a, MPEG layer 4, the audio
//*portion of an MPEG 4 movie. To my knowledge, it's dual channel only.
//*That goes for WMA and RealAudio too, AFAIK.
//*
//*You may want to look into flac, which has multi-channel support; I
//*believe there is some work being done on the surround sound
//*capabilities of flac. http://flac.sourceforge.net/
//*
//*matt
//*
//*On Jun 21, 2005, at 10:53 AM, Michael North wrote:
//*
//*> Franhoeffer(?) have released a surround mp3 encoder....is beta and
//*> only does
//*> 192k....but you can do surround in apples ac3, ms wma and real ra as
//*> well.....................
//*>
//*> //*-----Original Message-----
//*> //*From: Kassen [mailto:kassen@xxxxxxxxxxxxxx]
//*> //*Sent: Tuesday, June 21, 2005 8:54 AM
//*> //*To: microsound
//*> //*Subject: Re: [microsound] Portable audio codecs w surround?
//*> //*
//*> //*Adam Young
//*> //*
//*> //*> I'm new to the surround sound game.. I was wondering if there
//*> are any
//*> //*> MP3-like audio codecs that support surround sound in a
//*> portable format
//*> //*like
//*> //*> MP3s that can be downloaded and played with a player, etc.
//*> //*
//*> //*Somebody correct me if I´m wrong, but I believe codecs like mp3
//*> tend to
//*> //*lose
//*> //*the phase relations of the material. I think the more simple
//*> strategies
//*> //*for
//*> //*surround depend on those which would mean encoding will spoil
//*> the fun.
//*> //*
//*> //*Depending on your aplication you could work with multiple
//*> paralel files?
//*> //*
//*> //*Kas.
//*> //*
//*> //*
//*> //*
//*> //
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