A synthesis program for Polyphase Finite Impulse Response filters
This program synthesises Polyphase Finite Impulse Response filters, suitable primarily for sample-rate conversion and phase-shifting applications. It uses a novel technique for synthesising individual asymmetrical sub-filters, rather than the conventional method of decomposing a large prototype filter.
This project uses a new advanced principle of unwanted sideband suppression in direct-conversion receiver. Schematics & PCB layout are done in KiCad 5.
upfirdn ("Up-sampling, FIR filtering, Down-sampling") is an Efficient Polyphase FIR Resampler for Numpy. The purpose of this project is to support and grow numeric and scientific Python user and developer base
Smarc is a fast and high quality audio rate converter. It allows conversion between any sample rate, and has been optimized for standard audio rates. Smarc is available as a command line program, or as a C library.
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