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authorjmmv <jmmv>2002-12-14 18:23:16 +0000
committerjmmv <jmmv>2002-12-14 18:23:16 +0000
commitad90f28089ac1e481d3a18ff2781b621c606fc93 (patch)
treeed8f7fcd5bfb64476e72b4c53400d594d0a4701b /audio/libsamplerate/DESCR
parent380d4d70842e87f6c39a41ea90d72e96a59d3c41 (diff)
downloadpkgsrc-ad90f28089ac1e481d3a18ff2781b621c606fc93.tar.gz
Initial import of libsamplerate-0.0.13. DESCR follows:
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 12 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 97dB with -3dB passband extending from DC to 96% of the theoretical best bandwidth for a given pair of input and output sample rates.
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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 12 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 97dB with -3dB passband extending from DC to 96%
+of the theoretical best bandwidth for a given pair of input and output
+sample rates.