Ok, so I have an input audio chunk, from DC-48KHz, sampled at 96KHz.

I want to extract 20KHz to 32KHz, and shift this down to DC (DC-12KHz).
I think I need the freq_xlating_fir_filter_ccc() block, but I’ve seen
information about how to use this block.

In GRC, what parameters do I give to this block? The FIR filter is
applied after downconversion,
correct? But that filter “runs” at the input sample rate (prior to
decimation) correct?

If I want to grab 20KHz to 32KHz, do I tell the block that my center
frequency is 26KHz?
(20KHz + output_bandwidth/2)?

Call me confused.

Marcus L.
Principal Investigator
Shirleys Bay Radio Astronomy Consortium

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs