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Smarc audio rate converter, ...another SR converter developed at TÚlÚcom ParisTech, France.
post Oct 25 2011, 10:50
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Smarc is a fast and high quality audio rate converter. It allows conversion between any samplerate. Smarc is a command-line program and a C library to be integrated in other applications.

  • signal rate conversion between any sample rates.
  • optimized for conversion between standard audio sample rates.
  • command-line tool to convert audio files
  • C library to integrate smarc converter into other applications.
  • Initially designed to convert audio, but also any 1-D signals such as EEG, seismic signals, etc.
  • Convert sample rate using polyphase decimation and interpolation filters. This method guarantees high-quality for upsampling and downsampling.
  • Internal filters can be tuned to emphasize speed or quality.

Official website
Official download page
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post Oct 25 2011, 21:15
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Seems good and fast. 2x slower than SoX or zita, but that's still fast IMHO



At 150 dB none artifact

Above images are from default settings. One can use "--rs=180" and get clear picture at almost same speed

This post has been edited by klonuo: Oct 25 2011, 21:35
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