title: WIN32 Audio Sample Rate Conversion
body: <p>Under WIN32, One may use the <a href="http://msdn.microsoft.com/en-us/library/dd742924(VS.85).aspx" rel="nofollow noreferrer">acmStreamConvert </a> function as an audio sample rate converter (for example, converting 44.1kHz to 48kHz audio stream).</p>
  
  <p>According to <a href="http://www.mega-nerd.com/SRC/quality.html" rel="nofollow noreferrer">Secret Rabbit Code</a> documentation, the quality of a sample rate converter is measured by it's Signal-to-Noise Ratio and Bandwidth.</p>
  
  <p>Secret Rabbit Code claim <em>"signal-to-noise ratio of 145dB with -3dB passband extending from DC to 96% of the theoretical best bandwidth for a given pair of input and output sample rates"</em></p>
  
  <p>As far as I searched, Microsoft claims nothing about the quality of sample rate conversion using acmStreamConvert function.</p>
  
  <p>Does anyone knows anything about the quality of the conversion achived using acmStreamConvert ?</p>