[Stk] WvIn Problem

[Yair Ghitza]

Yeah, that was exactly it.
I inserted the stk::setRate(1.0) after inputting the wav, and it worked
perfectly.  Thanks for the help!

	-Yair

-------------------------------------------------------------------------------

On Fri, 4 Apr 2003, Gary Scavone wrote:

>
>
> On Fri, 4 Apr 2003, Perry R Cook wrote:
>
> >>I think it could also be a stereo issue.  If you opened a
> >>stereo file and then ticked it using the usual mono tick()
> >>method, you'd read only the left (or mixed??) samples, then
> >>get repeating numbers after reaching the end.  Maybe...
>
> Yes, good point.  The tick() method mixes all channels down to a
> single value (i.e. [chan0 + chan1 + chan2 + chan3] / 4 ).
>
> --gary
>
> >>On Fri, 4 Apr 2003, Gary Scavone wrote:
> >>
> >>> Hi Yair,
> >>>
> >>> I think you might be running into a sample rate issue here.  After you
> >>> open the file, you should get its sample rate and then
> >>> set the default STK sample rate to that value ... something like:
> >>>
> >>>   Stk::setSampleRate( input->getFileRate() );
> >>>
> >>> Or you should explicitly set the read rate of the WvIn class to 1.0
> >>> after you open the file (input->setRate( 1.0 )).  Let me know if that
> >>> doesn't work.  The repeating happens when the end of the file is
> >>> reached ... WvIn automatically keeps outputting the last sample value.
> >>>
> >>> --gary
> >>>
> >>> On Thu, 3 Apr 2003, Yair Ghitza wrote:
> >>>
> >>> >>Hi everyone,
> >>> >>
> >>> >>So, first off, let me apologize if this is a trivial question, or if I am
> >>> >>clearly doing something wrong.  Here is my problem.
> >>> >>
> >>> >>I am using the WvIn class to read in a wav file, and using the tick()
> >>> >>function to store MY_FLOAT values of the wav file to an array.
> >>> >>When I do this, it seems that the second half of any wav file I read only
> >>> >>has repeating numbers.
> >>> >>
> >>> >>Below, I've included a small test program that shows how I am reading in
> >>> >>the wav file and exactly when the numbers begin to repeat.  With any wav
> >>> >>file as input, the size of the wav file is printed to the screen, using
> >>> >>getSize().  Then, I pring out where the numbers begin and end
> >>> >>repeating.  In every case I've tried, the numbers repeat indefinitely from
> >>> >>exactly half-way through the wav file to the end.
> >>> >>
> >>> >>My question is, what am I doing wrong here?  Is there an easier way to
> >>> >>do this?  Any help would be greatly appreciated.  Thanks a lot,
> >>> >>
> >>> >>	-Yair
> >>> >>
> >>> >>-------------------------------------------------------------------------------
> >>> >>
> >>> >>#include <WvIn.h>
> >>> >>#include <iostream.h>
> >>> >>
> >>> >>void main()
> >>> >>{
> >>> >>
> >>> >>  WvIn * input = new WvIn;
> >>> >>  input->openFile("../../wav/test/Beatles - Day Tripper - 0_20.wav", FALSE);
> >>> >>  cout << "Size: " << input->getSize() << endl;
> >>> >>
> >>> >>  int wav_length = input->getSize();
> >>> >>  MY_FLOAT * input_wav = new MY_FLOAT[wav_length];
> >>> >>
> >>> >>  bool repeating = false;
> >>> >>  for (int i = 0; i < wav_length; i++)
> >>> >>  {
> >>> >>    input_wav[i] = input->tick();
> >>> >>    if (i > 0)
> >>> >>    {
> >>> >>        if ((input_wav[i] == input_wav[i-1]) && !repeating)
> >>> >>	{
> >>> >>            repeating = true;
> >>> >>            cout << "REPEAT BEGINS at index =\t" << i-1 << endl;
> >>> >>        }
> >>> >>        if ((input_wav[i] != input_wav[i-1]) && repeating)
> >>> >>        {
> >>> >>            repeating = false;
> >>> >>            cout << "ENDS at index =\t\t\t" << i-1 << endl;
> >>> >>	}
> >>> >>     }
> >>> >>  }
> >>> >>
> >>> >>}
> >>>
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>