AsyncAudioAmp.h

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#ifndef ASYNC_AUDIO_AMP_INCLUDED
#define ASYNC_AUDIO_AMP_INCLUDED
 
 
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 *
 * System Includes
 *
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#include <cmath>
 
 
/****************************************************************************
 *
 * Project Includes
 *
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#include <AsyncAudioProcessor.h>
 
 
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 * Local Includes
 *
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/****************************************************************************
 *
 * Forward declarations
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/****************************************************************************
 *
 * Namespace
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namespace Async
{
 
 
/****************************************************************************
 *
 * Forward declarations of classes inside of the declared namespace
 *
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/****************************************************************************
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 * Defines & typedefs
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/****************************************************************************
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 * Exported Global Variables
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/****************************************************************************
 *
 * Class definitions
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class AudioAmp : public Async::AudioProcessor
{
  public:
    AudioAmp(void) : m_gain(1.0) {}
  
    ~AudioAmp(void) {}
  
    void setGain(float gain_db) { m_gain = powf(10, gain_db / 20); }
    
    float gain(void) const { return 20 * log10(m_gain); }
    
    
  protected:
    void processSamples(float *dest, const float *src, int count)
    {
      for (int i=0; i<count; ++i)
      {
        dest[i] = src[i] * m_gain;
      }
    }
    
    
  private:
    AudioAmp(const AudioAmp&);
    AudioAmp& operator=(const AudioAmp&);
    
    float m_gain;
    
};  /* class AudioAmp */
 
 
} /* namespace */
 
#endif /* ASYNC_AUDIO_AMP_INCLUDED */
 
 
 
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