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Sponsored By
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Efika 5200B Project
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Reggae on Efika
in category Multimedia
proposed by Grzegorz Kraszewski on 21st February 2006 (accepted on 20th March 2006)
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Blog Entry
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 Resampling filters design
posted by Grzegorz Kraszewski on 13th May 2008
I've designed -60 dB and -80 dB resampling filters today. The first one is 48-tap one (and more when downsampling), is oversampled 32 times, so the half-width table has 768 coefficents. The second, high quality one is 64-tap and is oversampled 128 times, which yields 4096 coefficents in the table. Both filters have 3 dB attenuation at 0.45 of sampling frequency and respectively -60 or -80 dB at 0.5 of sampling frequency. I've also made siginficant progress on resampler reference (not optimized at all) code, but it is not yet finished.
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