[Csnd] Multi-dimensional arrays problem

The Csound Mailinglist
1

Hello, everyone

This might be a dumb question, but I am really falling to see what I am doing wrong. This is still preliminary.

When I run this:

instr 1

kCnt init 0

if metro(1) == 1 then

schedulek(2,0,1,kCnt)

kCnt += 1

endif

endin

instr 2

iGate[] = fillarray(0,0,0,1,0,1,0,0)

iChordsArr[][] init 2,4

iChordsArr[][] = fillarray(51,54,61,65,49,53,60,65)

iCnt = (p4%2)

print(iNote)

indx init 0

while indx < 4 do

iNote = iChordsArr[iCnt][indx]

indx += 1

od

endin

schedule(1,0,3600)

I get the error: array-variable dimensions do not match

The idea is to use multi-dimensional arrays to play 4-note chords, where each chord will be on a line, and each column will give a note to the a schedule of a different instrument.

Am I missing something?
Thanks for the help.

Respectfully,
Gabriel

Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

2

hi gabriel -

when i run your code with csound 7 develop, i had to move the print(iNote) after the line
    iNote = iChordsArr[iCnt][indx]

then it worked; the output is:

new alloc (instance 1) for instr 1:
     T 0.003 TT 0.003 M: 0.00000 0.00000
new alloc (instance 2) for instr 2:
instr 2: iNote = 51.000
instr 2: iNote = 54.000
instr 2: iNote = 61.000
instr 2: iNote = 65.000
     T 1.004 TT 1.004 M: 0.00000 0.00000
instr 2: iNote = 49.000
instr 2: iNote = 53.000
instr 2: iNote = 60.000
instr 2: iNote = 65.000
     T 2.006 TT 2.006 M: 0.00000 0.00000
instr 2: iNote = 51.000
instr 2: iNote = 54.000
instr 2: iNote = 61.000
instr 2: iNote = 65.000
     T 3.004 TT 3.004 M: 0.00000 0.00000
new alloc (instance 3) for instr 2:
instr 2: iNote = 49.000
instr 2: iNote = 53.000
instr 2: iNote = 60.000
instr 2: iNote = 65.000

best -
  joachim

3

Hi, Mr. Heintz

Even after moving it, it still doesn’t work. Do you think it has to do with Csound 6.18?

–Gabriel

4

hey gabriel -
i think the problem is with functional coding in csound 6.18 with two dimensions array, because when i change line 35:

iChordsArr[][] = fillarray(51,54,61,65,49,53,60,65) to:

iChordsArr fillarray 51,54,61,65,49,53,60,65

it works. so i guess with csound 7 you don’t have to use traditional way. parham

5

Aha! That did it!

I guess it is the same with other opcodes that take more than one variable (like, pan2). It just didn’t occur to me that it would be the case here.

Thanks!

– Gabriel

6

actually here are not more than one output variables.
i think parham pointed to an inconsistency of the code:
in csound you declare the array with brackets only once; then you refer to the array without brackets.
does it work when you write
  iChordsArr = fillarray(51,54,61,65,49,53,60,65)
?

7

yes that’s what i tried first but didn’t work for me. then i used the traditional way. maybe it would work for gabriel (?) im interested to know

8

Hi, Mr. Heintz

Running like that iChordsArr = fillarray(51,54,61,65,49,53,60,65) does not work.

–Gabriel

9

ok, thanks.
then one more reason to look forward to csound 7 =)
  joachim