Subject: MAX Digest - 8 May 1999 to 9 May 1999 (#1999-141)
Date: Mon, 10 May 1999 00:00:02 -0400
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Reply-To: MAX - Interactive Music/Multimedia Standard Environments
     
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There are 9 messages totalling 236 lines in this issue.

Topics of the day:

  1. looking for a rlly fast metro?
  2. SMPTE without hardware
  3. MAX Digest - 7 May 1999 to 8 May 1999 (#1999-140)
  4. pluggo
  5. looking for a really fast metro
  6. Call for works
  7. MAX and knox video switcher
  8. USB Midi Interface
  9. using MSP with 4400 powerMac

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Date:    Sun, 9 May 1999 01:48:51 -0400
From:    Alex Burton 
Subject: Re: looking for a rlly fast metro?

>Date:    Sat, 8 May 1999 16:29:55 +0200
>From:    jvkr 
>Subject: Re: looking for a rlly fast metro?
>
>The patch that comes with this message uses something very fast: sound. I
>thought, take a 1000 Hz sawtooth and use edge~ that bangs every wrap, and
>there you are. The results quite astonished me, but try it yourself.

 If you're using the "scheduler in audio interrupt" AND overdrive, what is
counted is the number of I/O vectors. If one of these options are toggled
off, your are counting fewer than SR/vector_size, because somewhere some
things are lost...

 But this problem has to do with bringing audio-rate data in the control
network.  Will arise with all audio-to-control conversion, even with the
train~ object, which is touted as a floating-point metronome... (try that
with a vector of 2048... ah! that's what's meant by floating... ;).

 If Marcel's purpose (as i know understand it) is to deal with audio, you
can get perfect high-frequency synchronisation with a phasor~ and a sah~.
nobuyasu sakodna's granular patch has a fine example of this use. But
everything stays in audio-land.

                                        Alex.

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Date:    Sun, 9 May 1999 02:08:06 -0400
From:    Alex Burton 
Subject: Re: SMPTE without hardware

>Date:    Sat, 8 May 1999 18:54:24 -0400
>From:    Neal Farwell 
>Subject: SMPTE without hardware
>
>Is it possible to use the standard sound in/out hardware on a PowerMac to
>read (and write) SMPTE?
>
>I'm thinking of an object for MAX, or perhaps an OMS device that derives
>MTC from the analog SMPTE... I guess one could program such a thing in MSP
>or SuperCollider if the Sound Manager latencies were predictable, but I
>don't own MSP or S-C (sigh...).

 Hello Neal,

 I did some work this winter on such an MSP object (an FSK decoder, SMPTE
being encoded with a Frequency Shift Keying method). Interestingly, the
main problem (for me, as this was my first Max object) was to get the
analysis data back in the control network correctly.

 I made that object because i needed to decode some other FSK analog
signal. In the application of SMPTE, the latency is an issue, but i guess
it's possible to synchronise by substracting the latency time. it should
work in an MSP application that sends MTC through OMS and the IAC. (wow,
lots of TLA's!).

 It's not ready for prime time, i did not assume there would be interest
for such an object. If there is indeed a need, i may have some time next
month to wrap it up. I have no real tape deck to test it with though (just
some soundfiles i made from a MIDI interface...).

                                        Alex.

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Date:    Sun, 9 May 1999 02:46:26 -0700
From:    Garry Kling 
Subject: Re: MAX Digest - 7 May 1999 to 8 May 1999 (#1999-140)

>...device that derives
>MTC from the analog SMPTE... I guess one could >program such a thing in
MSP
>or SuperCollider if the Sound Manager latencies >were predictable ...

Here is an oblique clue - which I have to credit to Marek Choloniewski -
some MIDI devices, esp. drum machines and MIDI time pieces, etc, have a
MIDI time code input, which just accepts analog pulses. Now, my
knowledge of MIDI and SMPTE hardware is hit and miss, but I did manage
to get a signal from a contact microphone into a Roland sequencer to
drive a drum loop with a tabla by plugging into this port, and it also
works with my MTP II. Anyway, I don't know the nature of SMPTE code off
the top of my head, but if it is an analog signal this may work with
equipment you already have.

I use SC most of the time (sometimes w/MAX), and I would say that it is
completely possible to do this. The latency of the sound manager is
quite predictable, and it lies in the range of 0.05 - 0.1. If there is
fluxuation you could write some code to acount for it in realtime.
However, the MIDI support in SC is not complete, so I don't think you
can send MTC, but I'm sure James is working on this (this is the only
thing you can't send, along with system exclusives), and SMPTE is not
supported. CSound on a realtime system (PII 350+/Linux, etc.) would work
much better (in the opinion of some), but latency would be a bigger
problem there.

Anyway, good luck with your project. I hope this provides a
useful/interesting lead.

Garry Kling
CEMS
Central Washington University

------------------------------

Date:    Sun, 9 May 1999 13:27:49 +0100
From:    filip 
Subject: pluggo

since the beta-testing of pluggo is running into its final stage, i have
to put this question.

why is pluggo not supposed to work in msp?

msp is the only audio-software ięm using (except for peak to cut my
soundfiles together), and of course i love it. itęs just strange to me,
why pluggins, created with msp shouldnęt be used with msp. or is there a
vst~ update coming up for the use with pluggo?

best wishes
klaus filip

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Date:    Sun, 9 May 1999 12:12:10 +0100
From:    DC 
Subject: Re: looking for a really fast metro

There is an object called "uzi" that sends out bangs "as fast as
possible."  You just tell it how many bangs you want and let it rip.  I
guess the timing depends on how you configure the Max scheduler.

Philip

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Date:    Sat, 8 May 1999 15:26:20 -0000
From:    Nick Rothwell 
Subject: Re: Call for works

> The Swiss Center for Computer Music (SCCM) requests submission of
> musical works for tape, solo instrument and tape and solo instrument
> combined with live electronics.

What about live electronics without tape or solo instrument?

--

            Nick Rothwell                  Cassiel.com Limited
            nick@cassiel.com                   www.cassiel.com
            systems - composition - installation - performance

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Date:    Sun, 9 May 1999 20:11:35 +0100
From:    Tim Boykett 
Subject: Re: MAX and knox video switcher

Controlling the Knox switcher via max is quite easy.
The assembling of the correct messages can be a bit of a pain,
but the patch I have is quite fine now. I don't have
access to the machine where the code is, so if
you would like a copy of the patch, please get in touch.

 Cheers!
   tim

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Date:    Sun, 9 May 1999 21:49:09 +0100
From:    Bruno Spoerri 
Subject: USB Midi Interface

You won't believe it: on the new G3 the Stealth Midi-connection works
without
any problems (so far...). It is installed instead of a modem, and mine even
worked without the driver (the vendor forgot to give it to me...) with OMS.
I succeeded to install StudioVision and Max with the keydisk on the Imation
Superdrive - it needed the newest Imation update (1.31 driver, ROM update)
and the USB floppy enabler.
This ended a period of 3 disastruous weeks of trying to install Max or
StudioVision on a 9600, upgraded with a XLR8-G3 card. Authorization ended
every time with "error 7: while verifying your authorization, while
specifying the expanded file" and a complete freeze of the machine.

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Date:    Sun, 9 May 1999 21:42:30 +0200
From:    Hans Moser 
Subject: using MSP with 4400 powerMac

Hello,
I've got at PowerMac 4400 and I want to work with MSP. Is there anybody with
experience?
One of my questions ist, if msp works without special equipement or if I
would need a G3-card? Which G3-card is best for the 4400 using MSP?

thanks for help
hans moser, austria

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End of MAX Digest - 8 May 1999 to 9 May 1999 (#1999-141)
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