I am trying to use max/msp as an effects processor much like any off the shelf box (ie. Lexicon). For example, I patched the aux sends on my mixer through it and turned the dry sound down to 0. I played my guitar through the mixer. Even without effect processing (for example straight from dac~ to adc~) there was enough latency to make performance difficult. I am just using the jacks on the right side of my MacBook. Should there be this much latency? I do not know how to measure it precisely but I would say that there is much more than 6 ms of latency which I have read in other posts is the maximum many users will tolerate. Would a firewire soundcard such as the MOTU Ultralite or the PreSonus FirePOD cause less latency? I understand that processing using ffts will cause more latency; I think the problem is the AD/DA converter in the soundcard, maybe?