Smarc audio rate converter, ...another SR converter developed at Télécom ParisTech, France. Options

[forart.eu]

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.

Features

• 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

[Martel]

Well, I've read through the "internals" document (15 pages).

It contains an alarming number of typos. Some parts are still in French.
I did not find anything revolutionary. There seem to be just some speed and memory-related optimizations.

... For others ratios, the decompostion is automatically computed but the result is often not optimal
and a manual help is recommanded, in this way one can manually defined a better decomposition.

This quote from the conclusion is not too convincing.

This post has been edited by Martel: Oct 25 2011, 19:02