Try this: ----%<--------%<--------%<--------%<--------%<--------%<--------%<---- #! /bin/bash # autostart.sh export SAMPLE_RATE=48000 export FRAMES_PERIOD=64 export N_PERIODS=3 if [ -e "/proc/asound/USBPre2" ]; then /usr/bin/jackd -P81 -d alsa -d hw: $USBPre2 -r ${SAMPLE_RATE} -p ${FRAMES_PERIOD} -n ${N_PERIODS} & fi ----%<--------%<--------%<--------%<--------%<--------%<--------%<---- _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user