Re: [MP3 ENCODER] the road to next(v4.00?)

[Christopher Wise]

On Tue, 11 Apr 2000, Adam Whitehead wrote:
> ATRAC is the codec used by Minidisc recorders. According to 'experts' it is
> not perceptually lossless either. As far as I can remember the bitrate is
> 292kbit/s
> which is above what people are comfortable with transferring over the
> Internet.
> 
> Apparently the latest generation ATRAC (seventh I think) is transparent
> to most listeners.
> 
> I don't see why this codec can't be implemented on a PC, but I'm quite
> sure Sony has a million and a half patents on it.

Sony have made a lower bitrate version called ATRAC3 that is available as 
software.
http://www.world.sony.com/Electronics/ATRAC3/

It's used by the Sony Vaio portable music player.
According to reviews the encoder uses some encryption so that you can only
play back the files on the pc in which they were created.

Chris Wise

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