Maybe you have an -i adc in your options. Csound only looks for input if there is one.
The complex instrument definition should not matter anyway, because if your CPU cannot
keep the pace, no amount of latency will do. The need for large buffers are generally only
for marginal cases where there are strong peaks of CPU activity. For most synthesis instruments,
either your CPU can do it or it can't. If it can, then with a low-latency audio driver, you can
drive down the latency to reasonably low levels.
Victor
----- Original Message -----
From: Jim Aikin <midiguru23@sbcglobal.net>
Date: Friday, June 11, 2010 7:50 am
Subject: [Csnd] Re: Re: Re al-Time Audio
To: csound@lists.bath.ac.uk
>
> Thanks for the nudge, Victor. I had already tried using Asio4all
> as the
> output, and Csound didn't like it ... but sometimes I'm a little
> slow. On
> reading your message, I belatedly realized that the error
> message I had been
> seeing was about the output device not matching the input device.
>
> I'm not using audio input, so why should that matter? Well, it
> does. I
> launched QuteCsound and specified Asio4all as both the output
> and the input,
> and now it works. I'm getting glitch-free playback with
> reasonable latency.
>
> I haven't yet tested it with a complex instrument definition,
> that's the
> next step. But there are ways to optimize instrument code, and
> I'm sure I'll
> be learning some of them!
>
> --JA
>
>
> Victor Lazzarini wrote:
> >
> > On Windows there are a few options for 'infrastructure' audio
> (via
> > portaudio). All of them but ASIO are very high latency.
> > Portaudio is starting to support WASAPI, but from what I read
> is not
> > low-latency yet.
> >
> > So, if you want RT low-latency audio on Windows, you will need
> to use
> > ASIO.
> > If you don't have an ASIO driver, you
> > can try downlading ASIO4All (not sure on Windows 7, though. It
> works on
> > XP
> > & Vista). With ASIO, I managed
> > buffers down to 128, 64 samples (-b) and very low latency (XP, never
> > really
> > tested on Vista)
> >
> > Victor
> >
> >
> > ----- Original Message -----
> > From: "Jim Aikin" <midiguru23@sbcglobal.net>
> > To: <csound@lists.bath.ac.uk>
> > Sent: Friday, June 11, 2010 4:30 AM
> > Subject: [Csnd] Re: Re al-Time Audio
> >
> >
> >>
> >>
> >>
> >> Mike Moser-Booth wrote:
> >>>
> >>> Csound communicates with the ASIO drivers via portaudio
> (whoa, deja vu
> >>> ;-) ). So if you use portaudio, your basically using ASIO.
> >>>
> >> Hmm ... in that case, I'd expect to be able to crank the
> buffer lower
> >> than
> >> 1024.
> >>
> >> Mike Moser-Booth wrote:
> >>>
> >>> As for the ksmps = 8, if you use an a-rate envelope you
> could bump this
> >>> up without zippering. I've also found that if you click the
> "run in
> >>> terminal" button in QuteCsound the sound is less glitchy.
> >>>
> >> It won't run in the terminal. The terminal gives me an error
> message that
> >> says "Csound Command ERROR: too many arguments". The self-
> same file,
> >> however, runs fine from within QuteCsound. Go figure.
> >>
> >> I've found that playback on the MacBook seems solid (though
> with a USB
> >> audio
> >> device, not a Firewire audio device) ... this is some kind of
> >> Windows-specific problem.
> >>
> >> --JA
> >> --
> >> View this message in context:
> >> http://old.nabble.com/Real-Time-Audio-tp28850252p28851013.html
> >> Sent from the Csound - General mailing list archive at Nabble.com.
> >>
> >>
> >>
> >> Send bugs reports to the Sourceforge bug tracker
> >> https://sourceforge.net/tracker/?group_id=81968&atid=564599
> >> Discussions of bugs and features can be posted here
> >> To unsubscribe, send email sympa@lists.bath.ac.uk with body
> "unsubscribe
> >> csound"
> >>
> >
> >
> >
> > Send bugs reports to the Sourceforge bug tracker
> > https://sourceforge.net/tracker/?group_id=81968&atid=564599
> > Discussions of bugs and features can be posted here
> > To unsubscribe, send email sympa@lists.bath.ac.uk with body
> "unsubscribe> csound"
> >
> >
> >
>
> --
> View this message in context: http://old.nabble.com/Real-Time-
> Audio-tp28850252p28851812.html
> Sent from the Csound - General mailing list archive at Nabble.com.
>
>
>
> Send bugs reports to the Sourceforge bug tracker
> https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body
> "unsubscribe csound"
>
Dr Victor Lazzarini, Senior Lecturer, Dept. of Music,
National University of Ireland, Maynooth