| Hello,
I just noticed that 'madsr' stopped working in Version 3.51: The
Attack and Decay Values have no influence any more. The sustain level,
however, still works, and I think the release, too.
The bug is only in 'madsr', 'mxadsr' (exponential adsr) works fine.
Thomas
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From: J P Fitch
To: the Physicist
cc: csound@maths.ex.ac.uk
Subject: Re: madsr bug in 3.51
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Oh dear! I was told that masdr did not work in 3.50 so I rewrote it, in line
with mxadsr actually. I will take another look to see if I can work out
what is happening. I did check it with a trivial MIDI file and I thought
it was OK. More work for tonight!
==John ff
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Date: Wed, 27 Jan 1999 19:18:25 +0200
From: Matti Koskinen
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Subject: adsyn
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hello all
i tried adsyn under cecilia and found out that
the created orc don't work. using any global
k-rate variables in an orc with adsyn makes
my versions of csound crash with floating
point exception. i tried with csound-3.47 that
came with cecilia and (unofficial) 3.50.
removing global variables and placing e.g
linseg inside the instr in their place,
works just ok.
also hetro from (unoff) 3.50, when opening nonexistent
file prints just garbage.
-matti
mjkoskin@sci.fi
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From: J P Fitch
To: the Physicist
cc: csound@maths.ex.ac.uk
Subject: Re: madsr bug in 3.51
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Sorry about that; I have fixed the (trivial but devestating) bug.
Will send out corrected system soon.
I have accumulated fixes to ^, sndwarp and diskin as well as a substantial
reorgainisation internally which shoudl lead to faster code (slightly) and
less noise (in teh case of spectrum).
Any other serious problems known?
==John
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Date: Wed, 27 Jan 1999 09:25:37 -0800 (PST)
From: Sal G Sofia
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To: Charles T Van Haecke
cc: csound@maths.ex.ac.uk
Subject: Re: Csound Comp.
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Dear Charles:
The time is getting closer to the deadline! Do not be
too meticulous about it, and let see what we have on paper.
Also tell me in one short paragraph what you are dealing with
(a) the goal of the comp. (b) description of the orc and sco...
Regards.
Sal
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From: J P Fitch
To: Matti Koskinen
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Subject: Re: adsyn
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Any chance of seeing and orc/sco with teh problems?
==John ff
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From: "Matt J. Ingalls"
To: csound@maths.ex.ac.uk
Subject: csound 3.51 PPC (fwd)
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it's here!! what youve all been waiting for! get one now!
everyone has one! dont be left in the dust! and did i mention:
its FREE!!!!!!!!!!!!!!!!!!!!
(note the 2 big bug fixes)
=======================================
jan26.99
Csound for Power Macintosh
=======================================
This Version:
fFitch code base 3.51
Perf "engine" 3.51
Csound "front end" 1.1.3
Available From:
www.concentric.net/~mingalls/software/csound
or: ftp://mills.edu/ccm/csound.ppc/CsoundPPC3.51.sit.hqx
=======================================
changes from 3.494
(3.50 was never released)
=======================================
Perf:
- Upgraded source to 3.51
- Incuded Sndwarp bug fix by Karpen
- Fixed diskin default params bug
reported by Maurizio Giri
Front End:
- nil
=======================================
Please email bugs to csound-dev@mills.edu
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From: the Physicist
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Subject: Further bugs I found
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Thanks for fixing the madsr problem. Now I have found other bugs:
'aftouch' crashes csound (segmentation fault), and wgflute hangs it
(it writes 'new alloc for instr1', then nothing happens any more. wgbow,
wgclar and wgbrass, however, work).
Thomas, the csound fan
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From: Pedro Batista
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my anti-friend asked me to fwd this...
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From: Pedro Batista
To: csound@maths.ex.ac.uk
Message-ID: <36b04bcc10ad01mailpac92*@mailpac.pt>
Subject: Re: Help on using zak
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>I' m porting some code from C to csound.
>Can anyone explain me the best way to perform with C array operations
>with zak ?
>I.e. Suppose I want translate a cycle of this kind:
>
>for(i=0;i<15;i++)
> for(j=0;j<15;j++)
> c[i][j]=a[i]*b[(i-j)%15]
>
Well, since I've done this extensivelly, maybe I can offer some help
a for loop translates to this:
ki=0
loop:
;inside the loop
;do what you gotta do
ki=ki+1
if (ki<15) kgoto loop
Of course you need a different label for each loop. For nested loops:
ki=0
loop1:
kj=0
loop2:
;inside nested loops
kj=kj+1
if (kj<15) kgoto loop2
ki=ki+1
if (ki<15) kgoto loop1
Now, arrays are more complicated. I deal with them like this:
Define start positions for each array. Careful, dont let them overlap
;float a[16], b[8], c[16][8];
iastart = 0
ibstart = iastart+16
icstart = ibstart+8
iend = icstart + 16*8
....then to read from a[5] use
kval zkr iastart+5
....and to read from c[7][3] use
kval zkr icstart+7*8+3
You have to multiply the 1st index -7- by the second dimension -8- and add
the 2nd index -3-
Now for the fearless, a 3 dimension array:
;float c[16][8][4];
(you have to set asside a 16*8*4 block in zak-space)
;reading from c[1][2][3]
kval zkr icstart+1*(8*4)+2*(4)+3
And so on...
(Note that this all assumes arrays starting at zero)
Finally the whole thing (I need to know the c array size, so assuming float
c[8][16]):
ki=0
loop1:
kj=0
loop2:
;c[i][j]=a[i]*b[(i-j)%15]
ka zkr iastart+ki
kndx=(ki-kj)-int((ki-kj)/15)*15
kb zkr ibstart+kndx
zkw ka*kb, icstart+ki*16+kj
kj=kj+1
if (kj<15) kgoto loop2
ki=ki+1
if (ki<15) kgoto loop1
(dis was just off the top of my head, hope I didnt miss any bugs)
>where the a[],b[] and c[][] are previosly declared as float.
there's only floats in csound
>How can I declare the variables and perform the task if a,b,c are
>at i_time?
use i-variables, igoto and zir/ziw
I do this kind of things 'ad nauseum' in my neural nets (the perceptron, the
back-prop morpher and the recurrent FIR network - this last one has
4-dimension arrays), and wavelet stuff. Its a drag, and must be debugged
thoroughly. I dont know how hard this array thing would be to implement, and
how useful it would be except for my useless designs
pedro
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Date: Thu, 28 Jan 99 12:32:56 GMT
From: jpff@maths.bath.ac.uk
Subject: v5.1 for PowerMac
To: csound@maths.ex.ac.uk
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Message written at 28 Jan 1999 10:20:59 +0000
I have compiled a version, not the 'Mills' version, without realtime
output, no MIDI and simple interface, and it is on the server, bugs
and all. I do this as I am personally confused as to what state matt
has got his code to.
==John |