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Audio sample rate conversion library

libsamplerate (aka Secret Rabbit Code) is a library for audio rate conversion.

libsamplerate currently provides three different sample rate conversion algorithms; zero order hold, linear interpolation and FIR filter interpolation (using filters derived from the mathematical SINC function). The first two algorithms (zero order hold and linear) are included for completeness and are not recommended for any application where high quality sample rate conversion is required. For the FIR/Sinc algorithm, three converters are provided; SRC_SINC_FASTEST, SRC_SINC_MEDIUM_QUALITY and SRC_SINC_BEST_QUALITY to allow a trade off between conversion speed and conversion quality.

libsamplerate is capable of downsampling to 1/256 of the original sample rate and upsampling to 256 times the original sample rate. It is also capable of time varying conversions for vary speed effects and synchronising of two unlocked sample rates.

Package version:0.1.7-3


libsamplerate (0.1.7-3) unstable; urgency=low

  * debian/control :
    - New maintainer (Closes: #546788).
    - Add DM-Upload-Allowed yes.
    - Improved package descriptions.
    - Standards version to 3.8.3.
  * debian/patches/ debian/rules debian/control :
    - Use quilt instead of dpatch.
  * debian/rules :
    - Do not install example binary varispeed-play which was always intended as


2009-02-14  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>

    * src/common.h src/samplerate.c
    Add new error value SRC_ERR_SINC_PREPARE_DATA_BAD_LEN.

    * src/common.h
    Add WARN_UNUSED macro.

    * src/src_sinc.c
    Fix a segfault which occurs when memcpy is passed a bad length parameter.
    This bug has zero security implications beyond the ability to cause a
    program hitting t


This package was debianized by Anand Kumria <anand@unknown> on
Thr,  5 Dec 2002 23:05:38 +1100.

It was downloaded from

Upstream Author: Erik de Castro Lopo <>


    Copyright (C) 2002-2008 Erik de Castro Lopo


    This package is free software; you can redistribute it and/or modify
    it under the terms of the GN

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