hi Erik and listers I've tried inserting the pro-53FX as an effect into an audio track in my sonar project , but no sound was heard from that track. the pro-53FX should process external audio through its filters/effects/envelopes. in the case of the b4Fx , it workes very fine; that is for example , I'm hearing a vocal track processed through b4's lesly/vibrato effect. what else should I try to get the pro-53FX to process external audio? besides that , everything else is very comfortable and works great. best Roy. ===================================================================== Archive: //www.freelists.org/archives/directixer/ Unsubscribe: mailto:directixer-request@xxxxxxxxxxxxx?body=unsubscribe Admin: mailto:kkm@xxxxxxxxx =====================================================================