Re: [SoX-users] FIR filter

[Rob S. <aq...@ya...>]

>I have a FIR filter in PCM format as it is needed for brutefir, from the DRC manual (http://drc-fir.sourceforge.net/doc/drc.html):
>"Remember also that all the sample correction files output the correction filter (rps.pcm) in 32 bit floating point format normalized to 1.0, which is the format suited for use with BruteFIR."
>
>I would like to use sox for the filter application using the fir option and dump brutefir for this. Would this be possible and how? Can I convert the pcm file to the output sox needs?

Try something along the lines of:

sox -t f32 brutefir-file fir.dat

then edit fir.dat to remove the first column (the filter coefs should be in the 2nd column).

Cheers,
Rob