Oh FYI, the point of the C++ Autodownload is to make life easier on the programmer. It means he doesn't have to load and unload every segment he calls play on. It's all handled automatically. -Scott Morgan http://Morganstudios.com ----- Original Message ----- From: "Scott Morgan" <scott@xxxxxxxxxxxxxxxxx> To: <directmusic@xxxxxxxxxxxxx> Sent: Thursday, February 27, 2003 8:31 AM Subject: [directmusic] Re: Ciaran - you mentioned... > > The Autodownload feature Todor is referring to is a C++ method that has > nothing to do with the download checkbox in scripts. The programmer would > be the person who decides to use AutoDownload, not the composer. Just so > you know DMDemo does not use Autodownload. Typically if you are using > scripting there is absolutely no need to use AutoDownload since the script > handles everything either through manual script commands or by loading what > it needs at start (only once). > > There are periodic CPU spikes in DMusic playback, but my understanding is > that it is the playback engine waking up every so often and writing new data > to the sound buffer. > > -Scott Morgan > http://Morganstudios.com > > > ----- Original Message ----- > From: "Ciaran Walsh" <ciaran@xxxxxxxxxxxxxx> > To: <directmusic@xxxxxxxxxxxxx> > Sent: Thursday, February 27, 2003 7:34 AM > Subject: [directmusic] Re: Ciaran - you mentioned... > > > > > > that would definitely explain it - does it really download the instruments > > again every time you play a band? that seems like a really weird way for > it > > to work... > > > > I thought the point of AutoDownload was so that all content referenced by > > the script was downloaded when the script loaded. > > > > -----Original Message----- > > From: directmusic-bounce@xxxxxxxxxxxxx > > [mailto:directmusic-bounce@xxxxxxxxxxxxx]On Behalf Of Todor Fay > > Sent: 27 February 2003 15:18 > > To: directmusic@xxxxxxxxxxxxx > > Subject: [directmusic] Re: Ciaran - you mentioned... > > > > > > > > Is there any chance you had the AutoDownload command turned on? It's a > > feature that would cause each band to automatically cause a download of > > its instruments when it played. Playback of a band should normally not > > cause any spike because all it does is send program change events to the > > synth which just stores them, so nothing active occurs. > > > > Todor > > > > -----Original Message----- > > From: directmusic-bounce@xxxxxxxxxxxxx > > [mailto:directmusic-bounce@xxxxxxxxxxxxx] On Behalf Of Ciaran Walsh > > Sent: Thursday, February 27, 2003 5:32 AM > > To: directmusic@xxxxxxxxxxxxx > > Subject: [directmusic] Re: Ciaran - you mentioned... > > > > > > The problem we were having was never pinned down 100% to one particular > > thing, but band events certainly seemed to be contributing > > significantly. > > Our performance tests showed big CPU spikes each time a segment was > > triggered with a new band event, and somehow there was a cumulative > > effect > > which had a big impact on the overall frame rate. > > > > When we removed band events from the segments the spikes disappeared. > > > > We defined the band globally by having a segment play right at the start > > containing just a band event and triggering the first Primary Segment. > > As > > long as you don't recreate the audiopath or change any band settings you > > don't need to create the band again after that. I guess it's only a > > problem > > if you are re-assigning pchannels as you go along, but I've never needed > > to > > do that. > > > > Hope that helps, > > Ciaran > > > > -----Original Message----- > > From: directmusic-bounce@xxxxxxxxxxxxx > > [mailto:directmusic-bounce@xxxxxxxxxxxxx]On Behalf Of Paul Stroud > > Sent: 27 February 2003 10:59 > > To: directmusic@xxxxxxxxxxxxx > > Subject: [directmusic] Ciaran - you mentioned... > > > > > > > > ..that band tracks were giving you and your dev team a few problems - > > causing some glitch? > > > > If you don't mind going over the same subject again; what was the > > problem? > > And how did you sort it? > > > > I seem to remember that you globally declared a band instead of use band > > tracks on each segment. Is this right? Did you need to play a Band > > track > > at least once? Is this how you globally declare a band? > > > > Anyone else had problems with this sort of thing? > > > > > > > > > > > > >