Thanks Julien, yes I've tried with headphones but jack still fails to start. I'll try now running it without jack and see if that brings any clues - but really i need to use jack. Forgot to mention that I can record and play at the same time - but only when the zoom is set as the input device and the laptop audio hardware set as the output. Cheers, Iain On Mon, 2011-06-06 at 13:00 +0200, Julien Claassen wrote: > Hello Iain! > Only one small thought. when you use the Zoom as a standalone, there seems > to be a blockage, when recording and uing the speaker for playback. Have you > tried plugging in headphones while using the h4n in full duplex? Othen than > that, No ideas. I have one for the moment, but I only used it once for full > duplex and I remember we did a bit of trickery, but that may have been due to > the fact, that we had no JACK. > Warm regards > Julien > > -------- > Music was my first love and it will be my last (John Miles) > > ======== FIND MY WEB-PROJECT AT: ======== > http://ltsb.sourceforge.net > the Linux TextBased Studio guide > ======= AND MY PERSONAL PAGES AT: ======= > http://www.juliencoder.de _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user