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C++ Noise::tick方法代码示例

本文整理汇总了C++中Noise::tick方法的典型用法代码示例。如果您正苦于以下问题:C++ Noise::tick方法的具体用法?C++ Noise::tick怎么用?C++ Noise::tick使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Noise的用法示例。


在下文中一共展示了Noise::tick方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: file

void Guitar :: setBodyFile( std::string bodyfile )
{
  bool fileLoaded = false;
  if ( bodyfile != "" ) {
    try {
      FileWvIn file( bodyfile );
  
      // Fill the StkFrames variable with the (possibly interpolated)
      // file data.
      excitation_.resize( (unsigned long) ( 0.5 + ( file.getSize() * Stk::sampleRate() / file.getFileRate() ) ) );
      file.tick( excitation_ );
      fileLoaded = true;
    }
    catch ( StkError &error ) {
      oStream_ << "Guitar::setBodyFile: file error (" << error.getMessage() << ") ... using noise excitation.";
      handleError( StkError::WARNING );
    }
  }

  if ( !fileLoaded ) {
    unsigned int M = 200;  // arbitrary value
    excitation_.resize( M );
    Noise noise;
    noise.tick( excitation_ );
    // Smooth the start and end of the noise.
    unsigned int N = (unsigned int) M * 0.2; // arbitrary value
    for ( unsigned int n=0; n<N; n++ ) {
      StkFloat weight = 0.5 * ( 1.0 - cos( n * PI / (N-1) ) );
      excitation_[n] *= weight;
      excitation_[M-n-1] *= weight;
    }
  }

  // Filter the excitation to simulate pick hardness
  pickFilter_.tick( excitation_ );

  // Compute file mean and remove (to avoid DC bias).
  StkFloat mean = 0.0;
  for ( unsigned int i=0; i<excitation_.frames(); i++ )
    mean += excitation_[i];
  mean /= excitation_.frames();

  for ( unsigned int i=0; i<excitation_.frames(); i++ )
    excitation_[i] -= mean;

  // Reset all the file pointers.
  for ( unsigned int i=0; i<strings_.size(); i++ )
    filePointer_[i] = 0;
}
开发者ID:Ahbee,项目名称:stk,代码行数:49,代码来源:Guitar.cpp


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