Yes I have little problem using Logic or dp running the usual number of tracks. The other day I was running something like 200 oscillators + 4 stereo granulators on maxmsp in real time, I can't say that the sound quality equaled that of csound though (particularly with the additive synthesis). It is not so much sound quality degradation but simply the computer giving up! So I think you're right to say that the score is just to big. I guess I'll do what I've been doing so far, that is I mute the tracks on blue and bounce them in groupes of four or so then mix the result in Logic. Also instead of having the whole piece in one score I'll divide into sections and edit them later. On another note, I just changed all my oscil3 opcodes for oscili and it's much much better. Thanks for the comments... Best Peiman 2008/9/19 Brian Redfern > Well maybe something else is running on your mac that is degrading sound > quality, can you run other audio applications like Live or those commercial > apps without sound quality issues? I'm running my own compositions from the > command line, but I also write them for realtime use, so I think if you > lower the number of instances to 4 from 40 I bet you will also get better > performance, that might just be a composition that's too huge to pump out in > realtime. > > > On Fri, Sep 19, 2008 at 9:38 AM, peiman khosravi > wrote: > >> Thanks for the reply, >> Actually my mistake sorry, I left out the x 2 after 1! so 2 GB ram :-) >> >> So if doubling the memory makes the big difference then I'll do that. It >> would be nice to be able to run osx in unix mode without the desktop >> though!!! >> >> Linux seems like the way to go... Maybe I'll have a csound only machine >> that runs on linux, when I can afford to put together a desktop computer. >> >> Thanks >> Peiman >> >> >> >> 2008/9/19 Brian Redfern >> >> That's a lot of heavy lifting, I would try maxing out your ram though, 1 >>> gig is pretty small if you're running the latest version of osx, if you're >>> running a macbook pro you should be able to upgrade to at least 2 gigs if >>> not 4 gigs of ram. I'm running the intel mac book pro with 4 gigs of ram and >>> csound is working in realtime for me. I do tend to use Linux for realtime >>> csound since I can use a really lightweight desktop like gnustep and then >>> have 95% of system resources dedicated directly to csound. >>> >>> On Fri, Sep 19, 2008 at 5:18 AM, peiman wrote: >>> >>>> >>>> I have been thinking, in your experience what is the most reliable >>>> platform/set-up to run csound (with blue). I'm not using csound for live >>>> performance but I would like to have the ability to audition instruments >>>> live as I'm composing, without getting glitches or freezes. Right now >>>> after >>>> about 40-50 instances of an instrument that uses oscil3 x 2 (also used >>>> for >>>> envelope control) and pretty large tables for good resolution (on >>>> csound64, >>>> osx, powerbook pro) I get nasty glitches and have to increase buffer >>>> size up >>>> to 4096 or more. There is no way of decreasing the number of notes as >>>> I'm >>>> using the score for additive synthesis. Of course I understand that I'm >>>> being demanding and again I'm not looking for realtime stability on >>>> stage, >>>> but is there a better set-up/platform that can handle this? What is a >>>> good >>>> buffer size setting on an osx intel laptop (I have 1GB RAM)? >>>> >>>> Has someone done a test as to how much RAM and what set-up is needed for >>>> x >>>> number of high precision oscillators to run smoothly on different >>>> platforms? >>>> >>>> Thanks >>>> Peiman >>>> >>>> >>>> >>>> -- >>>> View this message in context: >>>> http://www.nabble.com/real-time-performance-optimization-on-powerbook-pro....-tp19571293p19571293.html >>>> Sent from the Csound - General mailing list archive at Nabble.com. >>>> >>>> >>>> >>>> Send bugs reports to this list. >>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body >>>> "unsubscribe csound" >>>> >>> >>> >> >