You need an array as input. The reference manual is your friend

https://csound.com/manual/r2c.html
========================
Prof. Victor Lazzarini
Maynooth University
Ireland

> On 4 Oct 2022, at 14:32, Hlöðver Sigurðsson  wrote:
> 
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> I've never used these opcodes, the error message I get running:
> 
> instr 1
>   kIn line 0, p3, 1
>   kCmplx[] r2c kIn
> endin 
> 
> gives me a type error message
> 
> error:  Unable to find opcode entry for 'r2c' with matching argument types:
> Found: k[] r2c k
>        kCmplx r2c kIn ...
> Line: 11
>  from file *string* (1),Parsing failed due to syntax errors
> 
> my best guess is that it only works in combination with fft opcodes. But if that's the case, then the error message is bit misleading?
> 
> The manual example (besides ifft not being an opcode but that's easy to fix)
> http://www.csounds.com/manual/html/c2r.html
> does work.
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» csound -z1 2>&1 | grep r2c
r2c         i[]         i[]
r2c         k[]         k[]

I've never used these opcodes, the error message I get running:

instr 1
  kIn line 0, p3, 1
  kCmplx[] r2c kIn
endin

gives me a type error message

error:  Unable to find opcode entry for 'r2c' with matching argument types:
Found: k[] r2c k
       kCmplx r2c kIn ...
Line: 11
 from file *string* (1),Parsing failed due to syntax errors

my best guess is that it only works in combination with fft opcodes. But if that's the case, then the error message is bit misleading?

The manual example (besides ifft not being an opcode but that's easy to fix)
http://www.csounds.com/manual/html/c2r.html
does work.

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