Subject: MAX Digest - 21 Feb 1998 to 22 Feb 1998
Date: Mon, 23 Feb 1998 00:00:34 -0500
From: Automatic digest processor 
Reply-To: MAX - interactive music/multimedia standard environments
     
To: Recipients of MAX digests 

There are 7 messages totalling 152 lines in this issue.

Topics of the day:

  1. when is dsp method called?
  2. Mac G3 (2)
  3. pict object
  4. system requirements for 2.5,  HELP!!
  5. memory usage (2)

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Date:    Sat, 21 Feb 1998 21:29:17 -0800
From:    David Zicarelli 
Subject: Re: when is dsp method called?

Kevin Walker  asks:

>When is an MSP object's dsp method guaranteed to be called?
>
>- Whenever Audio is turned on?
>(For the rest of the questions, assume audio is running.)
>- Whenever signal patch cords connected to the object are modified?
>- Whenever signal patch cords anywhere in the patch are modified?
>- Whenever the sampling rate changes (either from the DSP window or via a
>";dsp ..." message)?
>- Whenever the signal vector size changes?
>- Whenever the IO vector size changes?

All of the above. Basically, if the audio is on, nothing substantive
about the signal processing environment can ever change without
the signal network being turned off and then recompiled, and part
of this process involves each signal object's dsp method being
called.

David Z.

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Date:    Sun, 22 Feb 1998 12:19:41 -0500
From:    Pam Jennings 
Subject: Mac G3

Has anyone had any experience running MAX on a Mac G3?   If so -- did you
find
any problems or benefits from this software/hardware combination?

Thanks,

Pamela Jennings

The great thing in this world is not so much where we are, but in which
direction we are moving.

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Date:    Sun, 22 Feb 1998 08:03:11 -1000
From:    Matthias Hoffmann-Kuhnt 
Subject: pict object

I have the following problem with Max:
 I am trying to use max to control the display of pict files
 to a TV-Monitor in an experiment to llok at the visual
 attention of bottlenosed dolpins. it works similar to a slide show
 a sequence of pictures is displayed for a certain exposure time
 (normally around 1000msec) and then a pause of app. 500msec elapses.
 the dolphin has been trained to press a response paddle upon the
 appearance of certain critical stimuli. from there the signal is fed into
 a midi board (studio3) and the to the computer. there the reaction time
 is measured from the onset of the picture until the pressing of the paddle.
 So far so good. I have used max to take all the measurements and save
 all the results into a file. I am also using a similar patch to
 run the same experiment with sounds insted of pictures and that works fine.
 here is my problem:
 in the sound version of my patch I am using the seq object to
 read the appropriate midi file out of a list that is randomly generated.
 so each midi file is only read when needed.
 but in the visual version with the pict object, I can't do that
 because I have to load all possible picts at the poening of the patch!
 because I am running long sequences of picts the machine runns out of
memory.
 the pict files themselfes are only 63K but the pict object seems to take
much
 more space.now my question is the following:
 would it be possible to create a pict object that reads in pict files
 only when needed for display similar to the seq object?
 or are there other objects that would solve my problem?
 I aapreciate any comment or help.
 Thanks
 Matthias Hoffmann-Kuhnt

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Date:    Sun, 22 Feb 1998 12:11:17 -0800
From:    Andrew Wagner 
Subject: system requirements for 2.5,  HELP!!

>  what the minimum system requirements for MAX 2.5.  I'm using the
> current MAX in a computer music class at U of Texas, and I have access
> to version 2.5 which I hope to install on a mac I will be purchasing > in
the
 near future.
>  I would like to know if 2.5
> runs on a 68000 processor or if it requires a 68030 or better; and what
> are the minimum OS and RAM requirements. Also any other relevant
> comments would be appreciated.
>

        Sincerely,
        Andrew

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Date:    Sun, 22 Feb 1998 20:54:58 +0100
From:    "Dr. Karlheinz Essl" 
Subject: memory usage

Dear MAXers!

Is there a way to obtain the amount of MAX' free memory (the same
information that is displayed in the status window)?

Cheers,

   Dr. Karlheinz Essl - Composer
   Vienna / Austria
   Studio for Advanced Music & Media Technology
   http://www.essl.at/

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Date:    Sun, 22 Feb 1998 14:57:05 -0500
From:    Stephen Kay 
Subject: Mac G3

>Has anyone had any experience running MAX on a Mac G3?   If so -- did yo=
u
find
>any problems or benefits from this software/hardware combination?
>Pamela Jennings

I'm running Max on a PowerBook G3.  Works great, and fast!

Stephen Kay

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Date:    Sun, 22 Feb 1998 21:15:14 -0500
From:    Stephen Kay 
Subject: memory usage

>Is there a way to obtain the amount of MAX' free memory (the same
>information that is displayed in the status window)?

>Dr. Karlheinz Essl - Composer

(If there isn't a way....)
If David Z. will reveal to me a method for doing so inside a =

Max object, I'll write the object.  Then again, you may need
to be inside the core code to access that info.

Stephen Kay

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End of MAX Digest - 21 Feb 1998 to 22 Feb 1998
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