Full Room Treatment & Room Correction

boxerfan88

boxerfan88

Well-known member
GH HT said:
Different calibration tool use different sweep sound. Latest was Dirac Live its different if not mistaken Sine waves purge sound. Audssey its a sweep from low to high frequency a chirp or sine sweep test tones.Rew will recommend to use pink noise for calibration and then a sweep same like Audyssey. If you want to narrow down the frequency to do adjustment then its sine. So do your research before you try accordingly to what you are trying to achieve, its all there in the web.
Click to expand...

Oh, are you into measurements, analysis, interpretation of measurements, mapping measured data with psychoacoustics?

If you are, maybe we can exchange mdat files on this thread to compare how the system in our different room behaves.
 
G

GH HT

Member
Honestly, I am no expert, but I am just answering whichever question I am able. I learned all this from YouTube and the web on how to set up calibration. Keep on failing but finally managed to understand after many hours of repetition of tutorial videos. All this while, I thought I was buying high-quality products to aim for perfection but realized they are not plug and play, and if you do not know how to tune them, then they will go to waste. That's where calibration comes in to bring the lowest system alive. It's a great feeling after being stupid about this and now being able to have a decent finding to improve without spending more on high-end products. $$$😁 Dont get me wrong I am in this forum to learn and gain knowledge and exchange ideas for improvement with the great minds in this forum. As mentioned, 'Measurement isn't everything ... our ear is the final arbiter. Totally
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tachyons

tachyons

Active member
Agreed. We optimise our subwoofers to help them perform at their best and get as close as possible to the results of more expensive models. Higher-end subs naturally have some advantages—like more rigid cabinets, lower resonance, and higher-grade drivers—which give them better control and cleaner bass. These are things EQ, placement, or room treatments can improve to some extent, but can’t fully replace.
 
boxerfan88

boxerfan88

Well-known member
I doubt we have any expert here ... mostly hobbyist. Good on you, learning from YT and web and lots of experimentation; same experience on my side. I'm not so much into HT, I'm much more into stereo HiFi.

For HT, I've played with the auto-cal YPAO ... results were so so only. I learned the hard way how to manually tuning my AVR (with REW as the measurement tool), and I get far far better results. Thankfully my Yamaha AVR has a webpage to manually input the calibration/PEQ settings. My AVR calibration is pretty much locked-in, I haven't mod the calibration for a few years already.

Recent years, I spent a lot more time on Stereo room correction. It was very tough the first few years, trying to understand the so many aspects of measurements (FR, Phase, Step, Impulse, Decay, RT60, Distortion, Time Alignment, etc...). Following that, another year of struggling to learn how to design my own FIR filters. The struggles over those years were totally worth it ... after crossing the chasm ... it was really really satisfying to be able to tune my system to tackle the room issues, and for the system to be the best it can be. I have posted my journey freely in this forum (feel free to search my past post). Very few respondents because very very few go down this audiophile path. For me, the reward is totally worth the steep learning curve.

With my stereo system pretty much dialed-in, I switched my attention to eye-candy. With AI at our doorstep, I started writing my own visualizers (goniometer, loudness radar). Following that, designing my own HiFi GUI. Running the Streamer GUI on a 27" display beats all those 2"-4" streamer displays ;) The goniometer was the best tool I created for myself ... it help me confirm the stereo imaging/soundstage/phasing that I am hearing with what the goniometer is showing.

2025-12-04_2030 foobar2000 fb64_2.25__[foobar2000].png
 
G

GH HT

Member
boxerfan88 said:
I doubt we have any expert here ... mostly hobbyist. Good on you, learning from YT and web and lots of experimentation; same experience on my side. I'm not so much into HT, I'm much more into stereo HiFi.

For HT, I've played with the auto-cal YPAO ... results were so so only. I learned the hard way how to manually tuning my AVR (with REW as the measurement tool), and I get far far better results. Thankfully my Yamaha AVR has a webpage to manually input the calibration/PEQ settings. My AVR calibration is pretty much locked-in, I haven't mod the calibration for a few years already.

Recent years, I spent a lot more time on Stereo room correction. It was very tough the first few years, trying to understand the so many aspects of measurements (FR, Phase, Step, Impulse, Decay, RT60, Distortion, Time Alignment, etc...). Following that, another year of struggling to learn how to design my own FIR filters. The struggles over those years were totally worth it ... after crossing the chasm ... it was really really satisfying to be able to tune my system to tackle the room issues, and for the system to be the best it can be. I have posted my journey freely in this forum (feel free to search my past post). Very few respondents because very very few go down this audiophile path. For me, the reward is totally worth the steep learning curve.

With my stereo system pretty much dialed-in, I switched my attention to eye-candy. With AI at our doorstep, I started writing my own visualizers (goniometer, loudness radar). Following that, designing my own HiFi GUI. Running the Streamer GUI on a 27" display beats all those 2"-4" streamer displays ;) The goniometer was the best tool I created for myself ... it help me confirm the stereo imaging/soundstage/phasing that I am hearing with what the goniometer is showing.

View attachment 9642
Click to expand...
To the Gurus Salute!!!!
 
boxerfan88

boxerfan88

Well-known member
Floor bounce. One of the SBIR issue that affects everyone, and difficult to fix.

Floor bounce is a primary source of nulls (dips) in the frequency response, typically concentrated in the crucial 70 Hz to 250 Hz range, which affects the perceived warmth and power of the audio.
Click to expand...

Maybe that's why some of those expensive tower speakers have the bass drivers at the bottom near the floor (Estelon, YG, etc.)
For the rest of us, I think subwoofer is a good solution -- big drivers located near the floor -- lower the chance of bass cancellation.
/
 
boxerfan88

boxerfan88

Well-known member
boxerfan88

boxerfan88

Well-known member
boxerfan88

boxerfan88

Well-known member
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