Pedro Hernans?ez wrote: > Sorry. The audio interface "hw:1" doesn't support any of the hardware > sample formats that JACK's alsa-driver can use. > > my system is a mac mini with a external imic Jack supports only samples in the native format of the machine which is big endian on PPC, but USB devices use little endian samples. Use "plughw:1" instead of "hw:1". HTH Clemens