On Thu, Aug 06, 2009 at 09:39:18AM -0500, John Hasler wrote: > Mark writes: > > Is it technically not feasable, meaning that a room is too large to do > > noise cancelling in, or not feasable from the linux software > > prespective? > > Noise-canceling headphones only cancel noise right at the headphones so > the size of the room is not relevant. Even so, dedicated DSP hardware > is required. A process running under Linux cannot possibly be fast > enough. It would have to process at least two samples per cycle of the > highest frequency of interest. It doesn't matter how powerful your > processor is: the latency would kill you.
Considering audio voice processing is done at the host anyway, why not also cancel acoustic echo? http://speex.org/docs/manual/speex-manual/node4.html#SECTION00450000000000000000 -- Tzafrir Cohen | tzaf...@jabber.org | VIM is http://tzafrir.org.il | | a Mutt's tzaf...@cohens.org.il | | best ICQ# 16849754 | | friend -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
