Hello I follow testing csound5 from felipe's packages. Perhaps a silly question: why it is necessary to set ksmps to 1 for to work with jack? Example csound -b1024 -B4096 -iadc:alsa_pcm:capture_ -odac:alsa_pcm:playback_ -m231 -+ignore_csopts=1 -+jack_client=csound -+rtaudio=JACK -+rtmidi=PortMidi test.orc test.sco if -b is not multiple of ksmps, there is error. With ksmps set to 1 all is ok, (except xruns) Thanks!