Room equalization and correction in the source content playing on Ubuntu Linux laptop 💻

[rwnano]

Wanted to run REW calibration on my Ubuntu Linux laptop.
My chain is:

Ubuntu Linux laptop running Spotify gui.
Output to a topping d10s DAC
RCA cable output to a harman kardon AVR receiver 3550
Output to stereo speakers and 1 subwoofer.

Wanted to run REW calibration in my room.

How to run it on my Ubuntu Linux laptop?
I'll have to buy a mike?
Thank you

 

[mbhangui]

Wanted to run REW calibration on my Ubuntu Linux laptop.
My chain is:

Ubuntu Linux laptop running Spotify gui.
Output to a topping d10s DAC
RCA cable output to a harman kardon AVR receiver 3550
Output to stereo speakers and 1 subwoofer.

Wanted to run REW calibration in my room.

How to run it on my Ubuntu Linux laptop?
I'll have to buy a mike?
Thank you

I have not tried REW as I'm a contended geezer and there are more important problems to solve. I simply use a dual 31 band equalizer below to tune my audio as per my liking. The below graphic equalizer has both balanced and single ended inputs/outputs and my D10b dac's output is connected to it. The balanced output goes to my amp that has balanced inputs. The SE output goes to 4 of my headphone amps (switchable).

But AFAIK this is what is involved

1. Have a calibrated microphone. You can get a mic like minidsp's UMIK-1 for which REQ already has the calibration data or calibrate any other microphone using a standard microphone like UMIK-1

2. Run the REQ wizard which will measure your room response in put it in a format that is understood by various software what works in conjuction with some hardware like miniDSP. The mic needs to be mounted on a standard camera tripod at the MLP. The hardware will then use DSP to alter your audio output to correct anomalies in your room response.

So apart from installing REQ software you require the microphone and a hardware like minidsp. Maybe some amps and AVRs have ability to load the REQ generated data (which I don't know). Another reason for me never trying REQ is that my AVR comes with a Yamaha Parametric room Acoustic Optimizer. Just connect a mic and run the YPAO program and my AVR does a pretty good job in measuring the room response and applying optimization to the output. Along with the height speakers in addition to 7.2, the effect is so good that I actually feel that I'm in a concert hall and I have the choice of selecting the concert halls as below (my favourite being Cellar Club). All done by simply clicking a button on the AVR remote.

 

[rwnano]

Yes the problem is that my harman kardon AVR receivers may have room equalization but I am not able to access it using the remote control since the receiver lacks HDMI