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	Secret Rabbit Code (aka libsamplerate)
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	<META NAME="Author" CONTENT="Erik de Castro Lopo (erikd AT mega-nerd DOT com)">
 <META NAME="Version" CONTENT="libsamplerate-0.1.8">
	<META NAME="Description" CONTENT="The Secret Rabbit Code Home Page">
	<META NAME="Keywords" CONTENT="libsamplerate sound resample audio dsp Linux">
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Author : Erik de Castro Lopo

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	"Choosing a sample rate coverter wasn't easy. We ran numerous tests with
	Secret Rabbit Code and other sample rate converters, then compared them all.
	In the end, SRC outperformed the others, including some extremely well known
	and popular software. We had one issue with SRC, but after emailing Erik, he
	got back to us immediately with an answer. Choosing SRC was a no brainer."
	 
	 Ryan Smith, International Marketing Manager, 
	 <A HREF="http://emersys.co.kr/">Emersys Corp.</A>, South Korea. 
	 Product : <A HREF="http://maven3d.com">Maven3D</A>

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	Secret Rabbit Code (aka libsamplerate) is a
	Sample Rate Converter for audio.
	One example of where such a thing would be useful is converting audio
	from the CD sample rate of 44.1kHz to the 48kHz sample rate used by
	DAT players.



	SRC is capable of arbitrary and time varying conversions ; from
	downsampling by a factor of 256 to upsampling by the same factor.
	Arbitrary in this case means that the ratio of input and output
	sample rates can be an irrational number.
	The conversion ratio can also vary with time for speeding up and slowing
	down effects.



	SRC provides a small set of converters to allow quality to
	be traded off against computation cost.
	The current best converter provides a signal-to-noise ratio of 145dB
	with -3dB passband extending from DC to 96&#37; of the theoretical
	best bandwidth for a given pair of input and output sample rates.



	Since the library has few dependencies beyond that provided by the
	standard C library, it should compile and work on just about any
	operating system.
	It is known to work on Linux, MacOSX,
		<A HREF="win32.html">Win32</A>
	and Solaris.
	With some relatively minor hacking it should also be relatively easy
	to port it to embedded systems and digital signal processors.



	In addition, the library comes with a comprehensive test suite which
	can validate the performance of the library on new platforms.

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