On Sun, Jan 24, 2010 at 10:31 PM, Paulo Cavalcanti <pro...@gmail.com> wrote:
> Hi, > > I have been recording using arecord and aplay this way: > > arecord -D default -d 0 -f cd | aplay -f cd -D default & > > The problem is that, while this works fine on rhel5, the same is no true > for Fedora 12 using pulseaudio, since I clearly hear some random noise > (specially at low volumes). > > Maybe this is related to the fact that the arecord process is consuming 15% > of my CPU (a quadcore, 2.4MHz). Compared to Audacious 2.2, for instance, > playing an mp3 file, which consumes only 4% of the CPU, this is really too > much. > > I concluded that the problem has to do with recording with pulseaudio > active. > I know there are parecord and paplay, but they are just symbolic links to > pacat, > and I do not know how to combine them in a similar way. > > Therefore, my question is what is the best way of recording with pulseadio, > without wasting too much of my CPU and without noise? > > In fact, 15% is the minimum. In general it can hit up to 30%. If I use arecord -D default -d 0 -f $tp | paplay & the consumption drops to 7% (much better), but still too far from the 0.3% I get on rhel5. -- Paulo Roma Cavalcanti LCG - UFRJ
-- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
