| Zhenhai Lin wrote:
>
> Dear all:
>
> I am totally confused about MIDI.
>
> I wonder how I can play midi sounds on SGI. I heard soundplayer can
> handle midi sounds on IRIX6.2( which is what I am using). I tried to
> play and it says I don't have a midi port. So I configured a midi port
> on my machine but it plays without any sound at all.
You will need the proper MIDI hardware, which may or may not be built
in:
look for a 5-pin DIN socket hopefully marked 'MIDI OUT' - can someone
tell us what the standard implementation is on the SGI?
>
> So is MIDI an idea of controlling an external music instrument? Do I
> really absolutely need some kind of external midi devise to play midi
> sounds?
Basically, yes. MIDI is a communications protocol not unlike a standard
printer
interface; so, just as you have to have a printer attached to your
computer in order to print something, you need a MIDI synthesizer (or
sound module) to play a MIDI output stream. Where this comparison falls
down a little is that it is possible to have a MIDI synthesizer on a
sound-card which is installed in your computer - this has been
common-place for years on PCs; what there is available for the SGI I
don't know.
>Is it possible to convert to something that I can play just
> using SGI's speaker (such as first convert it to csound file...)
>
This is now happening on the PC (Yamaha, for example - I don't know what
useful web links to show), but again I don't know what might be
available for the SGI.
In practice, real-time polyphonic MIDI synthesis is so demanding for a
general-purpose computer that even a SGI O2 might creak under the
strain!
Really a MIDI sound module or synth is the most practical solution.
It looks as if you need to do some homework on MIDI - read any of the
many popular magazines dealing with popular electronic music (in the UK:
'Sound On Sound', 'The Mix', USA: 'Keyboard', 'Electronic Musician' and
so on), and any general book on MIDI.
Richard Dobson
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Date: Mon, 15 Dec 1997 14:19:19 +0100
From: rasmus ekman
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To: Csound list
Subject: Re: (pseudo) random generator
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pete moss wrote:
>
> what is aunirand?
>
> also, is there a method to obtain a single (irate) random number, say
> between 0 and 1?
Maurizio Giri wrote:
>
> Is it an undocumented opcode? Are there any others?
iunirand, kunirand, aunirand. Covered in the manual as "xunirand",
under "x-class noise". There are ten more with different random
distributions.
The initial letter "x" indicates that an opcode can be run as
i- (init), k- (control) or a- (audio) rate. Note that the initial
letter of the output variable (i, k or a) has to match.
Regards,
re
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Date: Mon, 15 Dec 1997 08:25:01 -0500
From: Dave Phillips
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To: csound@maths.ex.ac.uk
Subject: Re: Opcode for Picture->Audio?
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For Linux Csounders:
The NoTAM program Ceres will load and render any PBM ascii image which
can then be synthesized and saved as an AIFF soundfile. Ceres will also
save a soundfile as a Csound score (it even has two separate means of
doing so). It even has a "paint" function, something like the Lemur
spectral editor.
Ceres was written by Oyvind Hammer originally for the SGI. The Linux
port was made possible with the help of code from Richard Kent.
Ceres for Linux can be found on the server at BGSU:
ftp://mustec.bgsu.edu/pub/linux/ceres-linux.tar.gz
It is dynamically linked to either Motif 1.2 or the LessTif libXm.so.80
or higher.
== Dave Phillips
http://www.bright.net/~dlphilp/index.html
http://www.bright.net/~dlphilp/linux_soundapps.html
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Date: Mon, 15 Dec 1997 14:21:46 +0100
From: rasmus ekman
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Subject: Re: Opcode for Picture->Audio?
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Hans Mikelson wrote:
>
> Perhaps this would best be implemented as a utility
> routine that would convert the audio into phase vocoder format.
You mean "convert the pixel data into...", no? Why pvoc format?
Would it be more efficient than simply adding oscillators?
Michael Coble wrote:
>
> Soundhack for the Macintosh has a primitive version of this feature. It
> creates a lot of noise, but then again maybe that's a goal. Essentially, it's
> hard to draw a waveform (besides a sin wave) from scratch, and noisy to edit
> an existing one.
Worse, it's often less than exciting since you will only get harmonic
partials from any repeating waveform. Usually the interesting stuff
happens somewhere else in a patch.
Besides, I think Michaelson was talking about using the pixels in a
picture as input for many oscillators. This is one of the more useful
methods for generating input data for massive additive synthesis.
=cw4t7abs wrote:
>
> > Soundhack for the Macintosh has a primitive version of this feature.
>
> 1 kould utilize any drawing prgm 4 dis matter.
> + open rezultz with sndhak + odr prgmz [bSt]
What other programs? I know Metasynth (it's brilliant).
Regards,
re
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From: jpff@maths.bath.ac.uk
To: csound@maths.ex.ac.uk
Subject: Anyone care to comment??
Date: Mon, 15 Dec 97 13:45:06 GMT
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I found this on comp.music.misc
==John
------------------------------------------------------------------------
From: Keith Nelson
Subject: csound compilation errors
Newsgroups: comp.music.misc
Date: Sun, 14 Dec 1997 04:23:11 -0800
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anyone know why I would get this compilation error in CSound?
Thanks,
Keith
snip---
Csound Version 3.46 (Jul 29 1997)
orchname: dtmf.orc
scorename: dtmf.sco
sorting score ...
... done
orch compiler:
83 lines read
instr 1
MIT Csound: 3.46 (Jul 29 1997)
orch now loaded
graphics not supported on this terminal, ascii substituted
audio buffered in 1024 sample-frame blocks
writing 2048-byte blks of shorts to /Music401/nelson/SND/dtmf.aiff
SECTION 1:
ftable 1:
ftable 1: 4096 points, scalemax 1.000
.-''''''-._
_-' '.
_- '.
- '_
.' -
- '_
_' .
. -
- '_
_'_____________________________________._______________________________________
-
-
'_
.
- -
'. _'
-_ -
-_ .'
-_ _.'
'-._____..'
new alloc for instr 1:
INIT ERROR: oscili: not initialized
--------
.sco file
f1 0 4096 10 1
i1 0 .5 16 1
i1 .6 .5 16 2
i1 1.15 .4 17 3
i1 1.6 .4 17 4
i1 2 .4 17 5
i1 2.5 .4 17 6
i1 3 .4 17 7
i1 3.5 .4 17 8
i1 4 .4 17 9
i1 4.5 .4 17 10
i1 5 .4 17 11
-----------
.orc file
sr=22050
kr=2205
ksmps=10
nchnls=1
instr 1
idur = p3
iamp = p4 * 1000
ibut = p5
kpit linenr iamp, 0.1, idur-0.2, 0.1
if ibut == 0 igoto dzero
if ibut == 1 igoto done
if ibut == 2 igoto dtwo
if ibut == 3 igoto dthree
if ibut == 4 igoto dfour
if ibut == 5 igoto dfive
if ibut == 6 igoto dsix
if ibut == 7 igoto dseven
if ibut == 8 igoto deight
if ibut == 9 igoto dnine
if ibut == 10 igoto dpound
if ibut == 11 igoto dstar
dzero:
atop oscili kpit, 1336, 1
abot oscili kpit, 941, 1
igoto dend
done:
atop oscili kpit, 1209, 1
abot oscili kpit, 697, 1
igoto dend
dtwo:
atop oscili kpit, 1336, 1
abot oscili kpit, 697, 1
igoto dend
dthree:
atop oscili kpit, 1477, 1
abot oscili kpit, 697, 1
igoto dend
dfour:
atop oscili kpit, 1209, 1
abot oscili kpit, 770, 1
igoto dend
dfive:
atop oscili kpit, 1336, 1
abot oscili kpit, 770, 1
igoto dend
dsix:
atop oscili kpit, 1477, 1
abot oscili kpit, 770, 1
igoto dend
dseven:
atop oscili kpit, 1209, 1
abot oscili kpit, 852, 1
igoto dend
deight:
atop oscili kpit, 1336, 1
abot oscili kpit, 852, 1
igoto dend
dnine:
atop oscili kpit, 1477, 1
abot oscili kpit, 852, 1
igoto dend
dpound:
atop oscili kpit, 1477, 1
abot oscili kpit, 941, 1
igoto dend
dstar:
atop oscili kpit, 1209, 1
abot oscili kpit, 941, 1
dend:
out atop+abot
endin
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Date: Mon, 15 Dec 1997 15:37:43 +0100
To: csound@maths.ex.ac.uk
From: Maurizio Giri
Subject: Re: (pseudo) random generator
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rasmus ekman wrote:
>iunirand, kunirand, aunirand. Covered in the manual
Which manual? In mine (the one which came with the ppc version) they don't
seem to be covered, nor are in the old word-format manual.
Where could i find a complete one?
Thanks
Maurizio
_____________________________________________
o Maurizio Giri o
o ConTempo o
o Italian Contemporary (and Early) Music o
o http://www.axnet.it/contempo o
o-------------------------------------------o
o ConTempo e-mail: contempo@wmail.axnet.it o
o Personal e-mail: m.giri@agora.stm.it o
o o
o Snail: Via Ostilia, 55 - 00184 Roma Italy o
o Tel +39.6.70451885 o
_____________________________________________
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From: John Francis Beahan
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To: Zhenhai Lin
Cc: csound@maths.ex.ac.uk
Subject: Re: Midi sound playing on SGI
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On Sun, 14 Dec 1997, Zhenhai Lin wrote:
> Dear all:
>
> I am totally confused about MIDI.
>
> I wonder how I can play midi sounds on SGI. I heard soundplayer can
> handle midi sounds on IRIX6.2( which is what I am using). I tried to
> play and it says I don't have a midi port. So I configured a midi port
> on my machine but it plays without any sound at all.
IRIX6.2-5 can come with a synthesis engine that reads MIDI well and runs
in real-time, but It may not come automatically with the computer. I believe
you have to request in your IRIX package from Silicon Graphics. At least
the last time I was in Mountain View they did a demo for me of the engine
and I was somewhat impressed. It is mainly sample-based sounds.
>
> So is MIDI an idea of controlling an external music instrument? Do I
> really absolutely need some kind of external midi devise to play midi
> sounds? Is it possible to convert to something that I can play just
> using SGI's speaker (such as first convert it to csound file...)
MIDI was orginally designed to let synthesizers 'talk' to each other. It
is basically a set of commands either having a certain note turned on or
a certain note turned off. There are also control commands that can
manipulate other parameters of sound synthesis. The misconception often
is that MIDI is some form of sound file and it is NOT. It is just a
standard communication protocal for synthesizers (that in some ways is
hugely out dated, but it is all we got).
>
> Thank you very much!
>
> --
> Zhenhai Lin
> Department of Computer Science, University of Wisconsin-Madison, USA
> URL: http://www.cs.wisc.edu/~zhenhai
> Email: zhenhai@cs.wisc.edu
>
>
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Date: Mon, 15 Dec 1997 08:37:55 -0800
From: Tobias Kunze
Message-Id: <199712151637.IAA05758@ulysses.stanford.edu>
To: csound@maths.ex.ac.uk
Subject: Re: Midi sound playing on SGI
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arrgh. just realized that the listserver has probably rejected the last
two messages I wrote regarding MIDI on SGI from a different account.
my apologies.
> you have to request in your IRIX package from Silicon Graphics
the MIDI Synthesizer is on the standard IRIX CD set, but not installed
by default. Make sure you select the dmedia_eoe subsystem in inst or swmgr.
______________________________________________________________________
Tobias Kunze t@kunze.stanford.edu
CCRMA, Stanford University http://www.stanford.edu/~tkunze
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Date: Mon, 15 Dec 1997 10:32:59 -0600
From: Zhenhai Lin
Organization: University of Wisconsin-Madison
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To: John Francis Beahan
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Subject: Re: Midi sound playing on SGI
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Hi,
Thanks a lot for help on Midi. I am not able to find midisynth on IRIX
6.3 applications CD. I found patches to midisynth on the IRIX 6.3
patches CD but it says some base files are missing. I assume I don't
have the base midisynth to patch on. I wonder if you know what is the CD
title where I can find midisynch.
Thank you very much!
Zhenhai
John Francis Beahan wrote:
>
> On Sun, 14 Dec 1997, Zhenhai Lin wrote:
>
> > Dear all:
> >
> > I am totally confused about MIDI.
> >
> > I wonder how I can play midi sounds on SGI. I heard soundplayer can
> > handle midi sounds on IRIX6.2( which is what I am using). I tried to
> > play and it says I don't have a midi port. So I configured a midi port
> > on my machine but it plays without any sound at all.
> IRIX6.2-5 can come with a synthesis engine that reads MIDI well and runs
> in real-time, but It may not come automatically with the computer. I believe
> you have to request in your IRIX package from Silicon Graphics. At least
> the last time I was in Mountain View they did a demo for me of the engine
> and I was somewhat impressed. It is mainly sample-based sounds.
>
> >
> > So is MIDI an idea of controlling an external music instrument? Do I
> > really absolutely need some kind of external midi devise to play midi
> > sounds? Is it possible to convert to something that I can play just
> > using SGI's speaker (such as first convert it to csound file...)
> MIDI was orginally designed to let synthesizers 'talk' to each other. It
> is basically a set of commands either having a certain note turned on or
> a certain note turned off. There are also control commands that can
> manipulate other parameters of sound synthesis. The misconception often
> is that MIDI is some form of sound file and it is NOT. It is just a
> standard communication protocal for synthesizers (that in some ways is
> hugely out dated, but it is all we got).
>
> >
> > Thank you very much!
> >
> > --
> > Zhenhai Lin
> > Department of Computer Science, University of Wisconsin-Madison, USA
> > URL: http://www.cs.wisc.edu/~zhenhai
> > Email: zhenhai@cs.wisc.edu
> >
> >
--
Zhenhai Lin
Department of Computer Science, University of Wisconsin-Madison, USA
URL: http://www.cs.wisc.edu/~zhenhai
Email: zhenhai@cs.wisc.edu
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Date: Mon, 15 Dec 1997 11:35:23 -0500
From: Jean Piche
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To: RWD@cableinet.co.uk, csound , zhenhai@cs.wisc.edu
Subject: Re: Midi sound playing on SGI
References: <34946CCB.167E@cs.wisc.edu> <349528FB.66BF@cableinet.co.uk>
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Richard Dobson wrote:
>
> Zhenhai Lin wrote:
> >
> > Dear all:
> >
> > I am totally confused about MIDI.
> >
> > I wonder how I can play midi sounds on SGI. I heard soundplayer can
> > handle midi sounds on IRIX6.2( which is what I am using). I tried to
> > play and it says I don't have a midi port. So I configured a midi port
> > on my machine but it plays without any sound at all.
>
> You will need the proper MIDI hardware, which may or may not be built
> in:
> look for a 5-pin DIN socket hopefully marked 'MIDI OUT' - can someone
> tell us what the standard implementation is on the SGI?
Depends on the model. Indy will accept midi from a standard non-parasitic (as
of irix6.2) Mac midi interface through its serial port. For csound midi work,
you need 3.45 or 46. 3.47 has midi bugs. O2 is another matter. You need an
Antona serial converter and I dont have it working yet.
>
> >
> > So is MIDI an idea of controlling an external music instrument? Do I
> > really absolutely need some kind of external midi devise to play midi
> > sounds?
>
> Basically, yes. MIDI is a communications protocol not unlike a standard
> printer
> interface; so, just as you have to have a printer attached to your
> computer in order to print something, you need a MIDI synthesizer (or
> sound module) to play a MIDI output stream. Where this comparison falls
> down a little is that it is possible to have a MIDI synthesizer on a
> sound-card which is installed in your computer - this has been
> common-place for years on PCs; what there is available for the SGI I
> don't know.
Irix6.2 and up have a full-featured software synth/sampler. Plug and play pretty
much on the Indy.
>
> >Is it possible to convert to something that I can play just
>
> > using SGI's speaker (such as first convert it to csound file...)
> >
>
> This is now happening on the PC (Yamaha, for example - I don't know what
> useful web links to show), but again I don't know what might be
> available for the SGI.
> In practice, real-time polyphonic MIDI synthesis is so demanding for a
> general-purpose computer that even a SGI O2 might creak under the
> strain!
> Really a MIDI sound module or synth is the most practical solution.
Well, table-lookup sampling, if done well is not terribly expensive. Synthesis
will depend on the complexity of the algo. For table stuff, I get 48 voices at
44k on the O2 before it shows any strain. There is no reason a fast Pentium or
PPC would'nt get similar figures.
Simple 44k non-interp oscilator benches for csound hover around 150-250 voices
for most hi-grade hardware. (604e, PII, R5ks...G3?)
--
________________________________________________________
Jean Piche
Universite de Montreal
http://mistral.ere.umontreal.ca/~pichej
http://www.musique.umontreal.ca/electro/CEC/
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Date: Mon, 15 Dec 1997 19:48:09 +0100
From: Khalid
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jpff@maths.bath.ac.uk wrote:
>
> I found this on comp.music.misc (...)
Is O.K. if you let Csound "kgoto" instead of "igoto". Don't
know why, though. Does anyone know the reason?
kd
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Date: Mon, 15 Dec 1997 20:28:57 +0000
From: Richard Dobson
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To: Khalid
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Subject: Re: Anyone care to comment??
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Khalid wrote:
>
> jpff@maths.bath.ac.uk wrote:
> >
> > I found this on comp.music.misc (...)
>
> Is O.K. if you let Csound "kgoto" instead of "igoto". Don't
> know why, though. Does anyone know the reason?
>
> kd
The igoto command is ignored for a and k -time passes, so all the other
oscili's were being activated, though they had been passed over during
the init pass, hence memory had not been allocated.
igoto is there to skip over other i-time statements; kgoto or plain goto
shoud be used in all other circumstances - unless a reinit call is
issued; and so on...
Richard Dobson
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From: Micheal Allen Thompson
To: J.P.ffitch@maths.bath.ac.uk
Cc: csound@maths.ex.ac.uk
Subject: Re: Way to add loop points and base freq. to AIFF files for loscil
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I am having trouble with loscil under IRIX 6.3 (csound IRIX 6.2 build)....
I keep getting 0.0
amps on the output. I have ran the same orc and sco under the IRIX 5.3
version and it works fine, also on a NeXT and a PPC Mac without
problems? any ideas?
BTW-Im running csound on an O2....
Michael
>
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Date: Mon, 15 Dec 1997 15:44:38 -0600 (CST)
From: Micheal Allen Thompson
To: Zhenhai Lin
Cc: John Francis Beahan , csound@maths.ex.ac.uk
Subject: Re: Midi sound playing on SGI
In-Reply-To: <34955BBB.1CFB@cs.wisc.edu>
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On IRIX 6.3 the midisynth comes on the applications CD. You must install
it. It is a very good software midi synth I have it running on my O2...
Michael
On
Mon, 15 Dec 1997, Zhenhai Lin wrote:
> Hi,
>
> Thanks a lot for help on Midi. I am not able to find midisynth on IRIX
> 6.3 applications CD. I found patches to midisynth on the IRIX 6.3
> patches CD but it says some base files are missing. I assume I don't
> have the base midisynth to patch on. I wonder if you know what is the CD
> title where I can find midisynch.
>
> Thank you very much!
>
> Zhenhai
>
> John Francis Beahan wrote:
> >
> > On Sun, 14 Dec 1997, Zhenhai Lin wrote:
> >
> > > Dear all:
> > >
> > > I am totally confused about MIDI.
> > >
> > > I wonder how I can play midi sounds on SGI. I heard soundplayer can
> > > handle midi sounds on IRIX6.2( which is what I am using). I tried to
> > > play and it says I don't have a midi port. So I configured a midi port
> > > on my machine but it plays without any sound at all.
> > IRIX6.2-5 can come with a synthesis engine that reads MIDI well and runs
> > in real-time, but It may not come automatically with the computer. I believe
> > you have to request in your IRIX package from Silicon Graphics. At least
> > the last time I was in Mountain View they did a demo for me of the engine
> > and I was somewhat impressed. It is mainly sample-based sounds.
> >
> > >
> > > So is MIDI an idea of controlling an external music instrument? Do I
> > > really absolutely need some kind of external midi devise to play midi
> > > sounds? Is it possible to convert to something that I can play just
> > > using SGI's speaker (such as first convert it to csound file...)
> > MIDI was orginally designed to let synthesizers 'talk' to each other. It
> > is basically a set of commands either having a certain note turned on or
> > a certain note turned off. There are also control commands that can
> > manipulate other parameters of sound synthesis. The misconception often
> > is that MIDI is some form of sound file and it is NOT. It is just a
> > standard communication protocal for synthesizers (that in some ways is
> > hugely out dated, but it is all we got).
> >
> > >
> > > Thank you very much!
> > >
> > > --
> > > Zhenhai Lin
> > > Department of Computer Science, University of Wisconsin-Madison, USA
> > > URL: http://www.cs.wisc.edu/~zhenhai
> > > Email: zhenhai@cs.wisc.edu
> > >
> > >
>
> --
> Zhenhai Lin
> Department of Computer Science, University of Wisconsin-Madison, USA
> URL: http://www.cs.wisc.edu/~zhenhai
> Email: zhenhai@cs.wisc.edu
>
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Date: Mon, 15 Dec 1997 19:22:08 -0500
From: Jean Piche
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Subject: HTML Csound Manual version 3.47
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Preliminary release. A number of things missing.
ftp://ftp.musique.umontreal.ca/pub/Csoundman3.47b1.tar.gz
Reports by mail to me please!
--
________________________________________________________
Jean Piche
Universite de Montreal
http://mistral.ere.umontreal.ca/~pichej
http://www.musique.umontreal.ca/electro/CEC/
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From: "A. Archias"
Subject: Re; Balance
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Hello;
I have been trying to experiment on and off for a little while and
got stumped on the 'balance' opcode. If someone could describe just
is going on inside this unit and/or what I have wrong.
sr=36000
kr=100
ksmps=360
chan=1
aw1 soundin "asound.wav"
I then sent it thru a butterworth LP filter controlled
by 'linen' opcode and indexed by a 'table' opcode. Everything
had been scaled down or normalized to a max of 1.0. But
then I want to amplify it back to or close to the aw1 level
with the 'balance' but it gets distorted. Is it meant that the
balance opcode is 'not' for normalized (0-1) signals?
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Date: Mon, 15 Dec 1997 22:31:44 -0800 (PST)
From: "Matt J. Ingalls"
To: Maurizio Giri
Cc: csound@maths.ex.ac.uk
Subject: Re: (pseudo) random generator
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> >iunirand, kunirand, aunirand. Covered in the manual
>
> Which manual? In mine (the one which came with the ppc version) they don't
> seem to be covered, nor are in the old word-format manual.
> Where could i find a complete one?
it used to be in a document called "NewOpcodes2.README" distributed with
the csound.ppc package (written by Robin Whittle) .. is it not there
now?
-matt
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Date: Tue, 16 Dec 1997 09:51:55 +0000
From: Richard Dobson
Reply-To: RWD@cableinet.co.uk
Organization: Composers Desktop Project
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To: csound@maths.ex.ac.uk
Cc: "A. Archias"
Subject: Re: Re; Balance
References: <199712160256.VAA06816@telnet.skyenet.net>
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A. Archias wrote:
>
> Hello;
>
> I have been trying to experiment on and off for a little while and
> got stumped on the 'balance' opcode. If someone could describe just
> is going on inside this unit and/or what I have wrong.
>
> sr=36000
> kr=100
> ksmps=360
> chan=1
>
> aw1 soundin "asound.wav"
>
> I then sent it thru a butterworth LP filter controlled
> by 'linen' opcode and indexed by a 'table' opcode. Everything
> had been scaled down or normalized to a max of 1.0. But
> then I want to amplify it back to or close to the aw1 level
> with the 'balance' but it gets distorted. Is it meant that the
> balance opcode is 'not' for normalized (0-1) signals?
>
>
I remember hitting much the same problem a while back; by setting the
internal lowpass [ihp] parameter to 1 (instead of the default 10Hz) I
was able ~almost~ to clear the noise, but not entirely. It seems to me
to be an innate dsp-level problem with the algorithm, but it would need
a dsp specialist to investigate.
Richard Dobson
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