Mysth-R wrote: > Hi, > > I just want to report my experience. Since several weeks now, I and a > friend of mine were searching for a software, or an utility on Linux, > capable of synchronizing our two computers. > > We could synchronize the transport, but there were always some things > missing for the tempo... > So yesterday, we decided to try netjack. Here our config : > > Two laptops connected via a router/switch with ethernet. > One laptop with a sound card the other, just nothing. > > the laptop with a sound card was acting as the Master > the other was acting as the Slave. > > On the Slave, you open a terminal and just run jackd with the net > backend : $ jackd -R -d net > So on the master you run jackd with qjackctl like you do normally. Then > you open a terminal and run : $ jack_netsource -h 192.168.12.13 > <http://192.168.12.13> (the ip of the slave machine) > > That's all !! I couldn't imagine that it was so easy to use. And we > played severals hour without any deconnection. > > Now I just have to sell my sound card :) ! > > By the way I would like to point up some things : > > * I would like to test the --celt option. But I can't understand what > the "N bytes per period" option are. torben (hohn, the author of netjack) explained to me that it's the number of bytes used for a period (i.e. the amount of compression). say your period size is 128. uncompressed, that would be 128 * 32bit = 512 bytes. when you say -c 40, celt will cram that signal into 40 bytes, which corresponds to a 512/40= 12.8:1 compression ratio. > * It seems that xruns on the master computer made some desynchronizations. > * On seq24, on the slave computer, I had to configure the option with > "Jack Transport" AND "Master JACK" ... a bit disapointing... We lost so > much time finding this very logical configuration. > * So the problem was seq24 on the slave machine was running at this own > tempo. If the master use 120BPM and the Slave 110, they are not > synchronized. But if you put 120 on both, it seems to be synchronized... > Well I think there is a bug in seq24 or something. I didn't try with > other softwares. But I have some doubt about the real tempo synchronization. i guess there is still an issue with jack transport over netjack. in any case, please join #jack on irc.freenode.net, torben usually hangs out there, and most of the testing sessions happen there. best, jörn -- jörn nettingsmeier home://germany/45128 essen/lortzingstr. 11/ http://spunk.dnsalias.org phone://+49/201/491621 _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
