"A while ago somebody was looking..." <- > <@jordens:matrix.org> A while ago somebody was looking for a FIR filter implementation for embedded. Maybe firefrommoonlight ? > > Here is one that performs: https://github.com/quartiq/stabilizer-streaming/blob/216736115c0dadfa15a114b858a003905adcffea/src/hbf.rs > > Just 4 instructions per sample on Skylake typically. On cortex M4 the assembly looks really clean and better than anything I can come with by hand. But I didn't benchmark it on arm yet. Great; thank you! Likely me; I've been using CMSIS-DSP with FFI, and have a few gripes with it. (compile size, big download etc)