← Back to context

Comment by acidburnNSA

1 day ago

Tangentially related, I recently had some hand-me-down high-end full tower speakers lose their integrated subwoofer amps. I bypassed them and wired in an external amp but people said the integrated DSP would be missing. That's when I learned about CamillaDSP [1] and CamillaFIR [2]. I got a calibrated UMIK-1 microphone and did a frequency sweep in the room. Then I applied the Camilla-computed FIR filter to my snapcast-sourced music stream on the Raspberry Pi 3 B I have networked into the living room. Now I have room-corrected and loudspeaker corrected fancy DSP and the speakers sound better than ever. Pretty fun, and very cheap. The Pi3 runs it using about 20% of its CPU. Not bad! I did the same process up in my office with some desk speakers and they sound great too (that time using EasyEffects to apply the filter in real-time rather than CamillaDSP).

[1] https://github.com/HEnquist/camilladsp

[2] https://github.com/VilhoValittu/CamillaFIR

14 comments

acidburnNSA

Reply
weiliddat  5 hours ago

Ah that’s super cool. Wish I knew about this a week earlier. Just last week I got the iLoud sub to correct speakers for my living room because I wanted a standalone piece of equipment that’s not my PC that can hold the corrected EQ/phase.

brianaker  8 hours ago

Why not use a crossover driver?

The loudspeaker would have used one; a driver is both cheaper and of higher quality.

MrBuddyCasino  1 day ago

Did you ever use Dirac Live and can compare the results? Hardware that supports Dirac is unfortunately very expensive.

  • vladvasiliu  1 day ago

    FWIW, I've tried Dirac Live and compared it to the correction suggested by REW [0]. In both cases, the measurements were taken with a UMIK-1, and the correction was done on a computer. Contrary to GP, I didn't have to fix borked components, just a random, untreated living room.

    Dirac seemed to have a fairly heavy-handed correction. In my case, I only had fairly narrow frequency ranges that needed correcting, but Dirac seemed to move much wider ranges at a time. It's also nearly impossible to tweak; you basically can only increase/decrease "the lows" or "the highs". But maybe I'm missing something.

    In contrast, the suggestions produced by REW were loaded in EasyEffects on Linux, and I could tweak everything to my heart's content. But I actually just left it alone, since it was good enough.

    ---

    [0] https://www.roomeqwizard.com/

  • throwawaySimon  17 hours ago

    Ive done quite extensive testing with Dirac(with a MiniDSP Flex), rePhase, normal PEQs, BruteFIR, CamillaDSP etc. etc.

    Dirac is the most user friendly of the bunch, but honestly once you limit the correction to below Schroeder frequency I cannot tell them apart. So for my systems I just stick to a few PEQs targeting the main peaks under 300hz.