| [read this in a monospaced font, eg. courier]
Tobiah wrote:
> (...) that is, to convert
> a Hertz value to (basenote, detune).
I have the function.
Consider s the ratio of tempered halfstep.
s = 2^(1/12)
We calculate the number of halfsteps between two frequencies by:
halfsteps(x)=Log[s,x] (or Log of x in the base of s)
The number of whole halfsteps from A440 is:
wholehalfsteps(x)= Round (halfsteps(x/440))
The difference (from the nearest halfstep) in halfsteps is:
displhalfsteps(x) = Round(x) -x
Now consider an auxiliar function:
storatio(x)=s^x
wich gives the ratio f2/f1 from the number of halfsteps.
So, the difference in Hz from the nearest halfstep is:
diffhz(x) = x - x * storatio(displhalfsteps(halfsteps(x/440)))
Where x=f2 and 440=f1, change this if you want to calculate it from another
frequency (eg. C)
Now, you have (basenote, detune) as
( wholehalfsteps(x), difhz(x) )
A more compact diffhz(x) is:
x - x*2^ [ ( Round [ Log[x/440]/M ] - ( Log[x/440]/M ))/12 ]
where M = Log[s] = Log[2^(1/12)] = 0.05776226504666216...
--
Francisco Vila. Badajoz (Spain)
E-mail: fravd@ctv.es
http://www.ctv.es/USERS/fravd
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Date: Mon, 17 Aug 1998 16:31:59 +0200 (MET DST)
From: Nicola Bernardini
To: Csound mailing list ,
Linux Audio Development Mailing list ,
Csound Linux/Unix Development Group ,
aimi mailing list
Subject: [ANNOUNCE] csound 3.484.0c available for linux
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The 3.484.0c version of linux csound is available from the AIMI server
ftp://musart.dist.unige.it/pub/CSOUND/csound-3.484.0c-*.tar.gz
in binary form (dynamically linked), binary form w/o X11 support (dynamically
linked) and source form.
This version is a fairly stable form of the canonical 3.484 sources
that has been built to run on both libc5 and libc6 (glibc) systems,
with the following exceptions:
1) we are trying to track down a problem that (sometimes) occurs with
MIDI - csound exits with a message 'can't get termios info' coming
from a tcgetattr() call; if anybody wants to/can help in there help
will be appreciated
2) there is still no AIFC support - AIFC support is called for in the
canonical 3.484 sources but the source distribution is missing the
aifc.c and aifc.h files needed :)
For the rest, anything advertised for the canonical 3.484 is there.
Dave Phillips and Damien Miller gave a great contribution in getting
this one out the door.
Nicola
------------------------------------------------------------------------
Nicola Bernardini
E-mail: nicb@axnet.it
Re graphics: A picture is worth 10K words -- but only those to describe
the picture. Hardly any sets of 10K words can be adequately described
with pictures.
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Date: Mon, 17 Aug 98 21:10:57 BST
From: jpff@maths.bath.ac.uk
Subject: Re: aifc in csound.src.zip
To: csound@maths.ex.ac.uk
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Message written at 14 Aug 1998 16:15:37 -0400
--- Copy of mail to croson@theory.esm.rochester.edu ---
In-reply-to: <9808131831.AA05568@theory.esm.rochester.edu> (message from Jim
Croson on Thu, 13 Aug 98 14:31:47 -0400)
References: <9808131831.AA05568@theory.esm.rochester.edu>
The Watcom makefile is out of date as I am woking without Watcom at
present. The Microsoft pcb project thing is complete.
fhtfun.c was removed and incorporated elsewhere some time back.
Which compiler are you using?
==John ffitch
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Date: Mon, 17 Aug 98 21:12:49 BST
From: jpff@maths.bath.ac.uk
Subject: Re: that convolve bug
To: csound@maths.ex.ac.uk
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Message written at 17 Aug 1998 12:51:10 -0400
--- Copy of mail to DBoothe@lyrick.com ---
In-reply-to: <283AABB8FD0DD21187C200A0C995F5DE0ECC3E@NEPTUNE.lyrick.com>
(message from David Boothe on Fri, 7 Aug 1998 19:51:32 -0500)
References: <283AABB8FD0DD21187C200A0C995F5DE0ECC3E@NEPTUNE.lyrick.com>
I _think_ the problem may be that since you created the convolution
file I have changed the system to allow 1, 2, 4, 6, and 8 channel
outputs and inputs. This involved changing an internal variable
(ALLCHNLS) which says to use all channels. Thus a convolution file
could appear wrong.
The options are: continue to use an older system
zap the 7th 32bit word on the convolve file to say
9 rather than 5
recreate the convolution file
Recompile the system withoit 6 and 8 channel, or
some such
==John ffitch
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Date: Mon, 17 Aug 98 21:10:30 BST
From: jpff@maths.bath.ac.uk
Subject: Re: missing aifc stuff
To: csound@maths.ex.ac.uk
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Message written at 14 Aug 1998 16:08:50 -0400
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Yes -- I clearly forgot to include aifc.c somewhere. Will see if I
can manage it from this distance.
==John ffitch
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Message-ID: <000801bdca67$1ecc7540$c58656d1@axe>
From: Michael Gogins
To: Woof ,
Algo-Comp ,
Csound list
Subject: Announcing AXCsound, the Csound ActiveX control
Date: Tue, 18 Aug 1998 01:12:41 -0400
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This is to announce the availability of AXCsound, a freeware ActiveX control
version of Csound.
AXCsound contains all the features of John ffitch's public-domain Csound,
the most widely used sound processing language, together with Gabriel
Maldonado's code for real-time MIDI control and low-latency
DirectSound output, in the form of a full ActiveX control and a standalone
Windows program.
AXCsound has been tested on Windows 95 and Windows NT 4.0, and should run on
Windows 98. Additional features include:
...A graphical user interface.
...A new all-in-one text file format for Csound, combining command options,
score, orchestra, and MIDI file into one file.
...The ability to stop, restart, or reload Csound at any time.
...Built-in text editing windows for scores and orchestras.
...An "arrangement" window for assigning numbers to named instruments.
...A test window with a test score for rapid, interactive development of new
instruments.
...Online help.
...A COM interface for the complete programmatic control of AXCsound from
other
languages and applications such as C++, Visual Basic, or J++.
...The ability to be embedded, complete with score and orchestra, in
spreadsheets, Web pages, and other OLE container documents.
...A launcher for standalone use; it can even render the same command lines
as
regular Csound.
...A MathLink protocol for use from inside Mathematica 3.0 notebooks.
I developed AXCsound to serve as a general-purpose software synthesizer
component for my algorithmic composition software. But, of course, AXCsound
can be used for other purposes as well, including, on a fast enough
computer,
live performance.
Download AXCsound now from http://www.pipeline.com/~gogins/AXCsound.htm, or
read more about it. It's free! And it includes all source code under the
terms of the GNU General Public License.
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Message-ID: <000801bdca67$1ecc7540$c58656d1@axe>
From: Michael Gogins
To: Woof ,
Algo-Comp ,
Csound list
Subject: Announcing AXCsound, the Csound ActiveX control
Date: Tue, 18 Aug 1998 01:12:41 -0400
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This is to announce the availability of AXCsound, a freeware ActiveX control
version of Csound.
AXCsound contains all the features of John ffitch's public-domain Csound,
the most widely used sound processing language, together with Gabriel
Maldonado's code for real-time MIDI control and low-latency
DirectSound output, in the form of a full ActiveX control and a standalone
Windows program.
AXCsound has been tested on Windows 95 and Windows NT 4.0, and should run on
Windows 98. Additional features include:
...A graphical user interface.
...A new all-in-one text file format for Csound, combining command options,
score, orchestra, and MIDI file into one file.
...The ability to stop, restart, or reload Csound at any time.
...Built-in text editing windows for scores and orchestras.
...An "arrangement" window for assigning numbers to named instruments.
...A test window with a test score for rapid, interactive development of new
instruments.
...Online help.
...A COM interface for the complete programmatic control of AXCsound from
other
languages and applications such as C++, Visual Basic, or J++.
...The ability to be embedded, complete with score and orchestra, in
spreadsheets, Web pages, and other OLE container documents.
...A launcher for standalone use; it can even render the same command lines
as
regular Csound.
...A MathLink protocol for use from inside Mathematica 3.0 notebooks.
I developed AXCsound to serve as a general-purpose software synthesizer
component for my algorithmic composition software. But, of course, AXCsound
can be used for other purposes as well, including, on a fast enough
computer,
live performance.
Download AXCsound now from http://www.pipeline.com/~gogins/AXCsound.htm, or
read more about it. It's free! And it includes all source code under the
terms of the GNU General Public License.
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Message-ID: <000801bdca67$1ecc7540$c58656d1@axe>
From: Michael Gogins
To: Woof ,
Algo-Comp ,
Csound list
Subject: Announcing AXCsound, the Csound ActiveX control
Date: Tue, 18 Aug 1998 01:12:41 -0400
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This is to announce the availability of AXCsound, a freeware ActiveX control
version of Csound.
AXCsound contains all the features of John ffitch's public-domain Csound,
the most widely used sound processing language, together with Gabriel
Maldonado's code for real-time MIDI control and low-latency
DirectSound output, in the form of a full ActiveX control and a standalone
Windows program.
AXCsound has been tested on Windows 95 and Windows NT 4.0, and should run on
Windows 98. Additional features include:
...A graphical user interface.
...A new all-in-one text file format for Csound, combining command options,
score, orchestra, and MIDI file into one file.
...The ability to stop, restart, or reload Csound at any time.
...Built-in text editing windows for scores and orchestras.
...An "arrangement" window for assigning numbers to named instruments.
...A test window with a test score for rapid, interactive development of new
instruments.
...Online help.
...A COM interface for the complete programmatic control of AXCsound from
other
languages and applications such as C++, Visual Basic, or J++.
...The ability to be embedded, complete with score and orchestra, in
spreadsheets, Web pages, and other OLE container documents.
...A launcher for standalone use; it can even render the same command lines
as
regular Csound.
...A MathLink protocol for use from inside Mathematica 3.0 notebooks.
I developed AXCsound to serve as a general-purpose software synthesizer
component for my algorithmic composition software. But, of course, AXCsound
can be used for other purposes as well, including, on a fast enough
computer,
live performance.
Download AXCsound now from http://www.pipeline.com/~gogins/AXCsound.htm, or
read more about it. It's free! And it includes all source code under the
terms of the GNU General Public License.
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Date: Tue, 18 Aug 1998 09:33:29 +0200 (MDT)
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To: Arne Hanna
From: Hans Timmermans
Subject: Re: Another Query About The Book
Cc: csound@maths.ex.ac.uk
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>Hi there folks. I was wondering when/if Richard Boulanger's Csound Book is
>going to be available.
Quoting Richard Boulanger:
'It is looking like late fall. '
Regards,
Hans Timmermans e-mail: hans.timmermans@kmt.hku.nl
Utrecht School of the Arts phone: (+31) 35 6836464
dep: Music Technology fax: (+31) 35 6836480
senior lecturer computer music
PO-BOX 2471
1200 CL HILVERSUM
the NETHERLANDS
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From: james@maths.ex.ac.uk
Message-Id: <26813.199808180840@zeno.maths.exeter.ac.uk>
Subject: [ Csound] BOUNCE Csound: Non-member submission from [Peter Neubacker ] (fwd)
To: csound@maths.ex.ac.uk
Date: Tue, 18 Aug 1998 09:40:35 +0100 (BST)
Reply-To: peter@orpheus.selene.cube.net
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Hi,
here is a little bug fix for NeXT (Intel) csound users:
Did you realize that when you open more than one .snd file with gen01,
only the first one is being read correctly? The consecutive ones are read
as raw data including the sound header, as the first (int) .snd becomes
byte-reversed.
To fix it, in file fgens.c , function static void gen01raw()
add the line
p->bytrev = 0;
somewhere in the beginning to reinit the byte reverse function!
Bye - Peter
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Date: Tue, 18 Aug 1998 8:40:8 -0300
From: luis jure
Reply-To: luisjure@adinet.com.uy
To: Csound
Subject: tone in winsound 3.484
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did anyone experience problems with tone in winsound 3.484?
for me it doesn't seem to accept i-variables, and it doesn't behave correctly with k-variables.
the first instrument below doesn't output anything, while the second "opens" the filter instead of closing it.
both instruments compile correctly in winsound 3.481, as well as DOS csound.
ORC =====================================
sr = 44100
kr = 4410
ksmps = 10
instr 1
kamp linseg 0,.05,25000,p3-.2,25000,.15,0
a1 oscil kamp,440,1
a2 tone a1,3000
out a2
endin
instr 2
kamp linseg 0,.05,25000,p3-.2,25000,.15,0
kfilt line 6000,p3,10
a1 oscil kamp,440,1
a2 tone a1,kfilt
out a2
endin
SCO =====================================
f1 0 4092 11 25
i1 0 2
i2 2 2
e
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luis jure
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uruguay
(598-2) 900 5038
luisjure@adinet.com.uy
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