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 Forum index » DIY Hardware and Software » ChucK programming language
MIDI control of sample parameters question.
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sir honey



Joined: Aug 04, 2006
Posts: 36
Location: NY

PostPosted: Sat Feb 24, 2007 2:29 pm    Post subject: MIDI control of sample parameters question. Reply with quote  Mark this post and the followings unread

hey again,

I'm trying to do some basic MIDI implementation, and having a bit of a time doing it. here's my code.

Code:


// here we go MIDI implementation
//jack ryon 2007

SndBuf samp1 => Echo echo1 => dac;
"/andyloops/dnb/DNO78B~1.WAV" => samp1.read;
10::second => echo1.max;

MidiIn min;
MidiMsg msg;
min.open(2) => int minopen;
if(!minopen) me.exit();

while(true)
{
   min => now;
   while(min.recv(msg))
   {
      //<<<msg.data1,msg.data2,msg.data3,"here's MIDI!">>>;
      if(msg.data2() == 74)
      {
         ((msg.data3())/127) * samp1.samples() => samp1.pos;
      }
   }
}


what I'm trying to do is use controller 74 to change location of start point in my sample and effectively, "scrub," through the file.

I can't compile this code, and receive a "function call using non-function variable" message in command line. What does this mean, and what can I do to get rid of it? Thanks for the help, guys.

jack Wink
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moudi



Joined: Oct 07, 2006
Posts: 63
Location: Bern Switzerland

PostPosted: Sat Feb 24, 2007 2:57 pm    Post subject: Reply with quote  Mark this post and the followings unread

hi sir honey

i think your problem is this part:
Code:
msg.data2()

msg.data2 is not a function, so you don't need the brackets for reading the value.
(as you did it a line above).

jassas
/moudi
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sir honey



Joined: Aug 04, 2006
Posts: 36
Location: NY

PostPosted: Sat Feb 24, 2007 3:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

hi moudi,

thanks, that does help me get going in the right direction.

I'm working on your comp/limiter question, but haven't got my code running properly yet. I'll let you know...

jack
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