Hello Joshua, Am Montag 19 April 2010 17:07:35 schrieb Joshua Boyd: > On Mon, Apr 19, 2010 at 12:38:35PM +0200, Conrad Berh?rster wrote: > > Hello, > > > > i want to grab some external sources (cdplayer) with jack. i run a jack > > instance with 48000 Hz and it works perfectly with my cd player and > > ardour. but if i take a cheaper cdplayer, the signal will only be came in > > with 44100, because there seems no resample and sync between the master > > (soundcard) and slave (cheapoCD) . so, the signal will always being > > played to slow. i found a workaround with a small external box, which > > resamples the incoming signal before it get into the soundcard. > > Your spdif sound card might have a sample rate converter. If it did, > most likely the work flow would be to set jack at 48k and then just play > normally and the sound card would convert from the incoming 44.1k to the > 48k it is set to. The SRC chip in your sound card (again, presuming it > has one, which I think is likely) is probably similar to whatever is in > the external box you've tried.
i own a gina 3G. i don't think, it has such a chip. anyway, never had heard, how to obtain an extra SRC Chip on any soundcard. has ALSA/Jack the possibilty to do such a thing? As i have read today, Spdif seems close to AES/EBU, which doesn't sent sample rate information. so, there seems to be different implementations in different Players. Some are better, some not. So, i have no chance to check that in any way except hearing. hmm. > > Unless there is a real need to do this in realtime, say for a live > performance, What a pity, i need it in realtime. ;=( i have written a software, which mixes some files. and now i want to add the possibility to add external sources like a CD Player. but thanks for your thoughts sizu c~ _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
