Room Correction Software

What is room correction? 

Room correction is all about tweaking your audio settings to get the best sound specifically for the given space you’re in.

https://www.dirac.com/blog/whats-room-correction-understanding-audio-vol-2/

The room has by far, the biggest influence on sound quality, much more than SnakeOil, yet ignored by many. Ideally, a room should be treated before using room correction software, but this is not always possible, especially in a shared environment.  

Room correction software uses digital signal processing (DSP) to analyse the room's impact on sound and then adjust the audio output of speakers using filters.

What to use in SnakeOil ?

MPD does not do room correction but instead relies on external software such as CamillaDSP (see below) to room correct the music output.

LMS has the SqueezeDSP plugin which is still under development.

Roon developed their own MUSE software. MUSE is easy to use, has comprehensive documentation and extensive capabilities.

HQPlayer provides its own room correction tools described briefly here.  However, HQPlayer is commonly used together with Roon, and users will use Roon's much easier and more extensive capabilities.

JRMC has DSP Studio with its extensive capabilities.

upmpdcli does not have room correction and will need external software such as CamillaDSP (see below) to room correct the music output.

Minimserver includes convolution filtering in its paid version.

BubbleUPnP Server has DSP filters, including convolution. 

Unlike the above, CamillaDSP is not a music player but a DSP engine which has been installed manually by a number of users.  CamillaDSP will available in a future version of SnakeOil.

Useful links

While there are many tools available, here are some that are used by SnakeOil users:

Room Equalisation Wizard (REW):  https://www.roomeqwizard.com/ to measure the room and provide DSP filter settings.

DRC (Digital Room Correction),: https://drc-fir.sourceforge.net/

miniDSP: https://www.minidsp.com/ hardware (including calibrated USB microphones) and software tools

Acourate: https://www.audiovero.de/en/acourate.php comprehensive advanced tool

Audiolense: https://juicehifi.com/ advanced, but simpler to use

Calibration service for Acourate, Audiolense:  https://accuratesound.ca/

Tips

Room correction software and digital signal processing (DSP) are huge topics that cannot be covered in detail here.  

SnakeOil limited role

SnakeOil downloads and installs the various software.  While there is some knowledge of room correction software within the SnakeOil Squad, we can only provide basic advice on using the tools. If all of this is new to you, it is better that you engage a professional. Done poorly, room correction software may reduce sound quality.