AFAIK, OLPCsound does not modify anything in Csound; the default is 
nchnls=1.

The stated example (on laptop.org) does specify nchnls=2; probably it was 
just not copied.

When I use outs and don't specify nchnls, I get the same error messages.

Art Hunkins

----- Original Message ----- 
From: "Steven Yi" 
To: 
Sent: Wednesday, April 14, 2010 6:24 PM
Subject: [Csnd] Re: MIDI playback


I just took a look at the CSD and there's no header that one would
normally expect, so you should add nchnls=2 at the top of the
CsInstruments section.  It's odd too as it means the project is just
using default settings; maybe OLPC Csound was modified to default to
nchnls=2, I don't know, but they must be doing something or the
project would fail as it does for you.

On Wed, Apr 14, 2010 at 6:21 PM, Steven Yi  wrote:
> Hi Andrew,
>
> This error message seems to be the main clue:
>
> outs inconsistent with global nchnls (1); replaced with out
>
> I haveO not seen the CSD but my guess is that it has a line setting
> nchnls to 1 like this:
>
> nchnls=1
>
> probably in the head of the  section. I'd try changing that 
> to:
>
> nchnls=2
>
> steven
>
>
> On Wed, Apr 14, 2010 at 5:58 PM, See Sound  wrote:
>> Hi, all
>>
>>
>>
>> I am following the example on 
>> http://wiki.laptop.org/go/Csound#MIDI_playback
>>
>> Copying and pasting the "GM_example.csd" code (also modifying the path to
>> the sound font), but "csound ./GM_example.csd" gives me:
>>
>>
>> time resolution is 1000.000 ns
>> virtual_keyboard real time MIDI plugin for Csound
>> 0dBFS level = 32768.0
>> Csound version 5.10 beta (double samples) Dec 3 2009
>> libsndfile-1.0.20
>> UnifiedCSD: ./GM_example.csd
>> STARTING FILE
>> Creating orchestra
>> Creating score
>> orchname: /tmp/filepv0vlb.orc
>> scorename: /tmp/fileMOARQL.sco
>> rtaudio: pulseaudio module enabled
>> orch compiler:
>> 122 lines read
>> instr 1
>> instr 10
>> outs inconsistent with global nchnls (1); replaced with out
>> error: too many input args, line 122:
>> outs a1*kvol*(0.5-kpan/2)*kenv, a2*kvol*(0.5+kpan/2)*kenv
>> error: input arg 'a2*kvol*(0.5+kpan/2)*kenv' of type a not allowed when
>> expecting i, line 122:
>> outs a1*kvol*(0.5-kpan/2)*kenv, a2*kvol*(0.5+kpan/2)*kenv
>> ################################################################
>> # WARNING: OPCODEDIR64 IS NOT SET ! #
>> # Csound requires this environment variable to be set to find #
>> # its plugin libraries. If it is not set, you may experience #
>> # missing opcodes, audio/MIDI drivers, or utilities. #
>> ################################################################
>> 2 syntax errors in orchestra. compilation invalid
>> Removing temporary file /tmp/fileMOARQL.sco ...
>> Removing temporary file /tmp/filepv0vlb.orc ...
>>
>> ------------
>>
>> What am I doing wrong?
>>
>> I could not get any help on the OLPC mailing list, nor on IRC.
>>
>> TIA
>>
>> andrew
>


Send bugs reports to the Sourceforge bug tracker
            https://sourceforge.net/tracker/?group_id=81968&atid=564599
Discussions of bugs and features can be posted here
To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe 
csound"

= 



Send bugs reports to the Sourceforge bug tracker
            https://sourceforge.net/tracker/?group_id=81968&atid=564599
Discussions of bugs and features can be posted here
To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"