[Stk] WvIn Problem

[Gary Scavone]

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;
>>	}
>>     }
>>  }
>>
>>}