Maitland Vaughan-Turner wrote:
> This hits near something I was wondering: Wouldn't it be pretty easy
> to do lossless compression on a DSD stream. Since it's only one bit,
> It seems like you could use simple run-length encoding to achieve
> pretty good results.
I pretty sure you are wrong here. Yes, RLE would probably work pretty
well on the DSD encoded version of a digitally generated sine wave.
However, on real analogue inputs there is sure to be a lot of very low
level noise which will result in very short run lengths.
Also be aware that all (neglecting ancient stuff like A-law, u-law and
IDPCM) recent audio codecs doe their encoding in the frequency domain
where it is easier to find redundancy than in the time domain.
Erik
-- ----------------------------------------------------------------- Erik de Castro Lopo ----------------------------------------------------------------- "And MS thinks Linux is vulnerable to forking? 95, 95 OEM SR2, 98, 98SE, ME, NT, 2000, Bob, .NET, CE, Datacenter, Server, Adv. Server, and now Web Server, sheesh." -- BTS on LinuxToday.com _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@email-addr-hidden http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-devReceived on Fri Sep 28 08:15:05 2007
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