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Chris Cannam, 2013-10-21 01:07 PM
Summary of results¶
We compared
decimate: the "Decimator"http://code.soundsoftware.ac.uk/projects/qm-dsp/embedded/classDecimator.html implementation in the qm-dsp library, which uses an 8-tap IIR lowpass filter;
resample_hq,resample_mq,resample_lq: the Resampler implementation in the qm-dsp library, which uses a lengthy Kaiser-windowed sinc filter, at three different quality settings;
src: the sndfile-resample program which uses libsamplerate, a well trusted resampler also using a Kaiser-windowed sinc implementation, at its default quality setting;
zoh: the sndfile-resample zero-order hold resampler, which just takes every Nth sample without any filtering, serving as a baseline.
