Something happened when I built for not just ASIO, but also DirectX and
WMME. But I didn't change any sources.

I don't want to be a PortAudio developer, so I'm going back to just ASIO to
see if the problems go away again, and if so, that's what I'll distribute. I
will move the DLLs to the main directory, you're right there's no reason to
get fancy with this.

With just ASIO, realtime was _excellent_, it worked as you say CsoundAV
does.

I'd guess with the multidriver build, the PortAudio code is opening more
than one stream, or something.

----- Original Message ----- 
From: "Art Hunkins" 
To: "Csound Developers Discussion List" 
Sent: Sunday, August 22, 2004 5:26 PM
Subject: [CSOUND-DEV:5248] Re: New CsoundVST file release -- again.


> Michael,
>
> Here's some feedback on the latest CS5 win .exe. (I've had major system
> problems the last 3-4 days, and am just now back operational.)
>
> 1) Ctrl-C and Ctrl-Break are now working properly for me - as long as I
> remember to select the correct window first. Somehow, on my system CS5
> closes the (FLTK) performance window without selecting the "run" window.
>
> 2) Any reason, in the distribution, not to have the windows dll's in the
> main folder? Otherwise you have to move them (as the .pdf says); they work
> fine in the "main."
>
> 3) With regard to ASIO: unfortunately, I can't test this with my Gina
card.
> It seems the program doesn't accept SR's less than 44100; did you mean
this?
> At 44100, I can't get anything - even very cut up.
>
> 4) With regard to MME: for my sound card to put out anything even
generally
> chopped up, my SR (on both my Gina card and a garden-variety CompUSA
stereo
> card) must lower to 8000 - and I'm talking mono here. (Please see the
> dirt-simple test file I've been using to test - a switched on/off
10-second
> performance sine wave.)
>
> Here a very odd thing happens: with SR=8000, if ksmps=1000 (along with -B
> and -b), the actual performance is 8 seconds long (instead of 10). When
> ksamps=2000, the performance lasts 4 seconds; when 500, performance 17
> seconds (and interrupted/sporadic); when 100, performance 83 seconds (and
> vastly distorted).
>
> Funny thing: elapsed time, as indicated in the performance messages, is
all
> proportional to the time warp; i.e., the messages always indicate a
> performance duration of 10 seconds.
>
> Again, these results apply both to my Gina card and the ordinary stereo
card
> I have.
>
> I've also run this file in CsoundAV. Both with ASIO and the DirectX
drivers
> it has, this can run at normal speeds (44100) without problems (it has a
bit
> more problem with MME). AV also doesn't have the SR limitation to 44100 of
> CS5.
>
> AV has got to be handling audio differently from CS5. If this has
something
> to do with the Csound extra buffer layer you've been talking about, for
the
> sake of all realtimers, let's get that out of here!
>
> Might be good to talk with Gab to come to some idea of what the realtime
> performance difference (radical) is due to. For me at least, CS5 isn't
close
> to being practical for realtime - even with ASIO.
>
> Have others put the latest Win .exe through any realtime test?
>
> Art Hunkins
>
> ----- Original Message -----
> From: "Michael Gogins" 
> To: "Csound Developers Discussion List" 
> Sent: Monday, August 16, 2004 10:59 PM
> Subject: [CSOUND-DEV:5224] New CsoundVST file release -- again.
>
>
> > This file release is in the csoundvst package and is named
> > csound5-mingw-2004-08-16.zip. It is for Csound 5 and CsoundVST with
> prebuilt
> > binaries for Windows built with MinGW, and sources for all platforms,
and
> > contains the following changes:
> >
> > The portaudio.dll file is now named portaudio.dll instead of
> > portaudio.dll.0.0.19. It is built with Dev-C++/MinGW instead of
autotools
> > and contains ASIO drivers, DirectSound (DirectX) drivers, and Windows
> > Multimedia Extensions (WMME) drivers.
> >
> > Top/main.c and InOut/pa_blocking.c contain minor changes in an effort to
> > improve the ability to cancel a performance with real-time audio using
> > Control-C (console Csound only). It works for me, but your mileage may
> vary.
> >
>