HAF - Home Audio Fidelity (Room Correction / convolution filter creation)

Hi @Magnus,

what’s the point in forcing yourself to like something you really don’t like? @Grump explicitly stressed the fact that he’d been trying this out for months before he arrived at this conclusion. (I’m saying this as someone who strongly believes that both room correction and above all acoustic room treatment can lead to excellent results.)

3 Likes

No need to force anything, but if you get used to a balanced sound you get to listen to how its supposed to sound (i.e. as the artist intended). But in @Grump’s case it also might be bad measurements or something else, so its impossible to tell.

Feel free to experiment with the guide I wrote, it wont produce as good results as Thierry does (no phase/time correction), but you can certainly improve the sound and in the process learn how you like it to sound: A guide how to do room correction and use it in Roon

1 Like

Strictly speaking, the term “room correction” is extremely misleading. It actually should be called “speaker calibration software”. Quite obviously, the room itself isn’t changed (let alone “corrected”) in any way. I’m saying this because you can achieve much better results with (properly installed) acoustic room treatment…

3 Likes

That’s true. However, experimenting with software-based solutions can be a good choice, too. The thing is effective room treatment can be very expensive and doesn’t always look very good (in a living room etc.)…

4 Likes

Not every system needs filters. There has to be a sliding scale of effectiveness from essential to not required so there are bound to be examples where the filters don’t bring anything useful or rob the system of something the owner enjoys. So insisting that someone persevere is the very definition of forcing things. They tried it, it didn’t work for them, move on!

2 Likes

You’re right, of course, @HWZ. But YOUR acoustically tuned listening room looks absolutely stunning. Congrats!

2 Likes

Your listening room is the only one I’ve seen that looked really good to me (instead of awful and without any atmosphere)! I could live there… probably with some windows, but I guess that would destroy the entire effect of your careful design :wink:

That’s why I would love to be able to have some software do the math instead. Of course realising, it will never 100% approach a room like yours. That’s okay. But as it currently works with me, it doesn’t work for me. Yet. :slight_smile:

1 Like

Room treatment is definitely the best option, but unless you build the room for audio from the ground up (double walls, slanted roof, etc) you are not going to get it 100% perfect. In fact, even then there are likely some improvements to be made.

A typical setup scenario would be something like this

  1. Setup the speakers as good as possible (lots of guides on the net for this).
  2. Treat the room as much as possible (or as much as the wife allows you to), of until you feel it can’t be improved any more.
  3. Fix the fine-tuning (including a house curve you like) with digital room correction.

Of course, only do this if you want a neutral “correct” sound, if you are happy with what you have now, go away from this thread and listen to music instead :slight_smile:

5 Likes

FWIW the biggest difference for me when I took my measurements was to use a proper microphone stand and point the mic towards the ceiling. Again everyones room/equipment is different. I wish you luck

Larry,

Thanks for pointing out this site. Their products look great and reasonably priced…even has artwork…what’s not to like? I have a 75" screen between my speakers and always assumed that the REW measurements and Theiry’s filters took that reflection into consideration…but what the hell do I know…

Thanks again!

You’re welcome. The measurements and filters do take the reflection into account but there’s only so much one can do in software. Attenuating the energy is much more effective, then create the filters for the last bit of fine tuning or to compensate where you can’t easily treat like the ceiling and floor.

2 Likes

Nice article about Home Audio Fidelity filters:

1 Like

@extracampine lets continue here so we don’t steal the other thread.

Another option is to try the stuff discussed in this thread. Do measurements in REW and send to Thierry at https://www.homeaudiofidelity.com/

2 Likes

Updated my DAC a few weeks back and have updated the filters accordingly. Also decided to give the crosstalk reduction another go - I’ve been blown away by what this can achieve on some recordings. Stringed instruments and percussion sound so much more realistic - by comparison the ‘normal’ sound just feels very unfocused. To my ears and in my setup the filters definitely give the best HiFi ‘bang for buck’ that I’ve had.

2 Likes

I find xtalk to make instrument position more precise, but it also makes the sound stay between the speakers so a more narrow soundstage. Not sure what I prefer.

2 Likes

My assumption, based on limited knowledge, is that the nature of the effect probably depends quite a bit on the room, speaker positioning and equipment - in fairness I don’t get a very wide or deep soundstage at the best of times so don’t notice any reduction there - if anything it’s perhaps wider. Like you, though, I do notice instrument positioning as more precise.

1 Like

Magnus: You raise an interesting question for those of us whose rooms dictate rather wider speaker configurations. I wonder whether Thierry’s crosstalk reduction makes even more sense in those situations because we are already starting with a very wide sound stage (for example I have 25 feet between my front speakers)?

Perhaps, but as always the only way to know is to test in your system and room. I am using xtalk now as well, the improvements outweigh the slightly smaller (but more homogeneous) stereo image.

1 Like

With crosstalk reduction, I have a much wider stereo image and it’s more focused, but it also dempends on the recording.

Same for me, wider image and more precise with crosstalk, esp. on acoustic « simple » recordings. Bill Evans / live at Village Vanguard is gorgeous, feels like beeing at the club!

1 Like