DRC plugin for Volumio now supports REW EQ filters

[Krunok]

Many of you who have your music stored on NAS and/or fancy various online streaming may find Volumio to be quite usefull with that scenario.

Volumio installation is very simple and images for various HW platforms can be found here: https://volumio.org/get-started/

DRC plugin for Volumio, which implements Brutefor convolution engine, can be found here: https://github.com/balbuze/volumio-plugins/tree/master/plugins/audio_interface/brutefir3

If you prefer to use REW not only as a measurement tool but also as a tool for automatic/manual creation of EQ filters here is what you should do to use those filters with DRC plugin/BruteFIR convolution engine for Volumio:

1. Create your filter in REW

2. Export the filter you created using "Export filters impulse response as WAV"

3. Use REWs default settings for export

4. Copy filters to BruteFIR filter directory (usually "/data/INTERNAL/brutefirfilters" on your Volumio machine)

5. Use the following settings in BruteFIR to activate your filters (set input attenuation according to the max gain of your filters):

7. Measure results with REW and, if necessary, correct your filters.

8. Enjoy your music!

 

[Krunok]

Let me also add that input attenuation in BruteFIR settings must correlate to max boost of the individual filter in REW.
I advise you to look at the boost of each filter in both channel to determine max boost as it may be that actual max boost never reached "Individual Max Boost" setting in REW. If that is the case set input attenuation accordingly.