Subject: MAX Digest - 18 May 1999 to 19 May 1999 (#1999-151)
Date: Thu, 20 May 1999 00:00:01 -0400
From: Automatic digest processor 
Reply-To: MAX - Interactive Music/Multimedia Standard Environments
     
To: Recipients of MAX digests 

There are 10 messages totalling 321 lines in this issue.

Topics of the day:

  1. video sensors
  2. tuning acoustical instruments with fft
  3. more tapin~/out~
  4. sensors (3)
  5. Max programming (2)
  6. IAC troubles
  7. PLUGGO - Plugmaker problems

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Date:    Wed, 19 May 1999 06:44:13 +0200
From:    Jeffrey Burns 
Subject: video sensors

>the best solution to this that i have found is david rokeby's  Very Nervous
>System.  far from an $85 solution, the vns is an amazing device that allows
>for one to connect a video camera for use as a sensor.  the hardware
version
>accepts a bnc signal from any camera, (low light black and white security
>camera seems to be the best setup) and outputs via a scsi cable to an
object
>in max called vns.  the object can be configured to extract many types of
>info from the vns.  my favorite being 'headtracking'  where the vns will
>track multiple 'heads' in the space and output information on each of them
>simultaneously.  a software version is also available that uses a signal
>from a video card and uses the cpu to do the processing.

Just for clarity, it would be nice to clean up the jungle of video sensors
by a simple list which compares them. Just for starts:

1. Singer's video-in external: divides the video picture into rectangular
fields and checks brightness

2. BigEye software from Steim: checks motion of silhouettes, bright spots
or colored spots

3. iCube software??

4. Rokeby software/hardware??

5. I've heard there are pc programs which use 2 cameras for 3-D tracking.??

Would sombody kindly fill in the missing info?

Jeff Burns

http://www.snafu.de/~jeff

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Date:    Wed, 19 May 1999 06:44:13 +0200
From:    Jeffrey Burns 
Subject: tuning acoustical instruments with fft

I'm presently writing a piano tuning patch using fiddle~. The method is to
check the frequency of each note of a well-tuned piano and store the
frequencies in a coll, to which the notes of an untuned piano will be
compared. The notes below the lower cutoff frequency are recorded and
speeded up by a factor of 2, 4 or 8 and then checked. There are a whole
bunch of snags: Should the attack be measured or a slice of sound a bit
later? Should the strong overtones of low notes be filtered out, or should
an overtone be tuned rather than the fundamental? If anyone has experience
with these problems, please answer. BTW does anybody have experience with
the new pc program Tune.It?

Jeff Burns

http://www.snafu.de/~jeff

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Date:    Wed, 19 May 1999 10:14:33 +0100
From:    Lawrence Casserley 
Subject: more tapin~/out~

Chris Tignor wrote:

>In addition to Melvyn Poore's suggestions for new tapin~ features related
to
>"instant" composition, including the "stop recording/continue playing"
>feature, (switching between two taps achieves this, I believe)

But I couldn't find a way of switching taps that worked - how do you do
it? See my earlier post on the polyphonic multi-delay.

> I would also
>find extremely useful a feature which would allow certain outlets from
>tapout~ to be disabled on the fly.  This would allow an easy way for the
>interesting rhythyms one can create from a single source to tapin~ to
>constantly change, without having to reassign values and get, at best, that
>tape flange zip.

>If there was even a way to "flush" the buffer completely
>and make the entire unit stop outputing completely while new info is still
>being fed in perhaps, that would also allow greater flexiblity- no longer
>would one have to "wait" for a tapout~ sequence to finish its routine, etc.
>etc.

I implemented a way of doing this in my orignal Signal Processing
Instrument on the ISPW. This is one of the things I have a problem
porting. This delay has 22 taps, each in an abstraction, which includes
logic for changing the tap time and muting the output briefly during the
change. I do lots of neat things with this, like controlling all the taps
proportionally with a foot pedal. I also have a 'flush' command that
mutes each tap for the current period of its delay time. Thus each one
switches back on at the time that the new data arrives at that tap. It
only takes a small amount of logic to handle this.

Best

Lawrence

--
Lawrence Electronic Operations - Tel +44 1494 481381 - FAX +44 1494 481454
Signal Processing for Contemporary Music - email leo@chiltern.demon.co.uk
http://www.chiltern.demon.co.uk

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

Date:    Wed, 19 May 1999 12:43:27 +0100
From:    Benjamin Thigpen 
Subject: Re: sensors

Garth Paine wrote:

>I would like to suggest that you also look at the ADB I/O which is
>relatively inexpensive and works well within MAX.  I have used a couple in
>commercial jobs, and they prove very reliable.

Garth, could you explain a little more about how this unit works (with
Max), and what kind of resolution/sampling rate it offers?

Thanks,

Ben

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

Date:    Wed, 19 May 1999 06:41:33 +0000
From:    Michael Carlito 
Subject: Max programming

Please excuse me for posting this but I really need some input and
this is the place to post I'm sure. I own MAX and I want to have a
long a fruitful experience with this software. Problem I can't get
past some of the concepts and move on if you will to greater things.
Is there a video or better tutorials or someone who would spend some
mentor time to get my butt off the ground and into the world of
MAX?

thank you
I respect all input
michael
"WE HAVE A DUTY TOWARDS MUSIC, NAMELY TO INVENT IT" Igor Stravinsky
http://www.albany.net/~mlito/

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

Date:    Wed, 19 May 1999 08:49:26 -0400
From:    Christopher Murtagh 
Subject: Re: sensors

On Wed, 19 May 1999, Benjamin Thigpen wrote:
> Garth, could you explain a little more about how this unit works (with
> Max), and what kind of resolution/sampling rate it offers?

 And a URL if there is one too please. :)

Cheers,

Chris

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Date:    Wed, 19 May 1999 10:11:52 -0400
From:    Neal Farwell 
Subject: Re: sensors

Thanks for all the responses on sensors-to-MIDI conversion, some good leads
to follow up... but I think not a solution yet.

Has anyone tried using industrial data acuisition cards or modules,
received via serial or purpose-written drivers in MAX?

I need to have up to 16 12-bit (or better) values updating constantly. Now
if each value takes two bytes, it seemed the most efficient MIDI packing is
a blind-Sysex:  0xF0 - 32 data bytes - 0xF7
which takes ~11ms  - just about a "respectable sample rate" for my
application.

Can MAX/MSP keep up with this kind of constant full-bandwidth MIDI (on,
say, my 8600/250)?

MIDI note-ons or controllers would need more status bytes? And if I
remember correctly, the I-Cube is too slow when you have this many channels.

I can't go ahead and build a custom unit... all my workshop gear's back in
the UK, and I want to be composing not tech-ing (sound familiar, anyone?).

Best,
Neal

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

Date:    Wed, 19 May 1999 20:20:41 +0200
From:    yvind Brandtsegg 
Subject: Re: Max programming

The Getting Started maual that comes with Max is a good place to start
learning how Max "works". But I must admit it can be pretty "dry", not
the most fun.
When I started learning Max, I worked with the tutorials, but at the
same time I tried to build some patches that did simple things that I
wanted to try out musically. I think this approach is pretty o.k. if you
can't attend a Max class anywhere in your area (which I couldn't).
Start real simple, by making a "thru" patch maybe (notein->noteout),
then start adding objects in between the input and output. See what
happens, have fun. It might take some time before you produce anything
really terriffic, but you learn as you go.

Best Regards
Oeyvind Brandtsegg
Trondheim, Norway

Michael Carlito wrote:

> Please excuse me for posting this but I really need some input and
> this is the place to post I'm sure. I own MAX and I want to have a
> long a fruitful experience with this software. Problem I can't get
> past some of the concepts and move on if you will to greater things.
> Is there a video or better tutorials or someone who would spend some
> mentor time to get my butt off the ground and into the world of
> MAX?
>
> thank you
> I respect all input
> michael
> "WE HAVE A DUTY TOWARDS MUSIC, NAMELY TO INVENT IT" Igor Stravinsky
> http://www.albany.net/~mlito/

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

Date:    Wed, 19 May 1999 21:29:33 +0000
From:    andy gracie 
Subject: IAC troubles

thanks for all the tips so far. unfortunately i'm still getting nowhere.
i'm trying to get Max to send timecode into cubase or to send a signal to
locate points in the timecode but i'm encountering the following problems.

cubase doesn't seem to be getting signals from Max.
sometimes cubase runs VERY slowly when Max is also running.
sometimes one or both crash.
when cubase is running Max will run the timeout.help patch but not my
i-cube patch/es.

i've done everything (i think) suggested so far, creating IAC busses and
the like. i'm doing this on a powerbook 1400c/166, using cubase XT, Max
3.5.9 and OMS 2.3.1.

is there anyone out there who can explain to me (privately if you like) how
i set up both Max and cubase i would be VERY grateful. i have a feeling it
has something to do with the cubase synchronisation options, am i right??

cheers all

andy

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

Date:    Wed, 19 May 1999 18:28:39 -0400
From:    Eloy Anzola 
Subject: PLUGGO - Plugmaker problems

First off let me congratulate cycling74 !!

You guys, David Z., have done it !!
Pluggo it's just amazing.

The included Plug-Ins are incredible, all work and
sound great..., can't wait for more..., the possibilities
are so awesome. This is as powerful as it gets !!

All excited as I am, I rushed and tried to create
my own plug-in. Only to find the Plugmaker app does not
seem to work. Even when I tried Tutorial P2, word for word.

When I drag the P2.clct to the Plugmaker icon nothing happens.
If I double click on Plugmaker, it seems to open and
immediately quits.

The Parch works as a Plug-in in StudioVision 4.2.2 if
I insert it with the Pluggo Dialog Window.

Any ideas ?

Thanks,

Eloy
 ------
leaddaet@earthlink.net
http://home.earthlink.net/~leaddaet

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End of MAX Digest - 18 May 1999 to 19 May 1999 (#1999-151)
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