Nicoalix

After doing an SPL measurement with the mobile phone, these are the results.

Today I was able to make a couple more measurements, this time I calibrated before the sound card (Steinberg UR22). Everything seems coherent except the waterfall graph, is it possible that it is that bad? or is it a measurement problem? I have not been able to do an SPL calibration.

I'll leave you two measurements here, they are quite different so I'll have to try more. Maybe you'll see some sense in it.

This weekend I hope to be able to make some measurements with an ECM8000 microphone, I will come back with them.

Can you recommend me any app?

Thank you very much @DuckToller, your ideas are very helpful. The diagram represents more than enough all the hypothetical positions that could be solved, but the idea is to start with the most obvious and move forward through trial and error. This week I will try to take some measurements, I plan to buy a BEHRINGER ECM8000, do you think it is enough for my current needs? I am open to ideas about the measurement. Yesterday I made some panels and I am testing them, I have found that this wooden frame helps to compensate for the lack of bright in the right area.

I was just thinking that, that panel improves "now", at this moment when I have not controlled the first reflections of the right wall, which is the first step. My approach now is to add 1 panel on the right, 135x60, 4cm thick, 70kg/m3, another one behind me, in the listening position, two on the ceiling (first reflections) and one more on the left. Plus 4 bass traps, two on the right and two on the second level of the room, in front of me, left and right. The blue block is a woodshed that will go in the future in that position, it is vertical, high enough, I hope it will make a bass trap. Any suggestions on this idea?

I'm back with the idea of making some panels this time for real. It occurred to me that a panel in this position could help to balance the sound and I have the impression that it does. I am wondering about the optimum properties of this panel, if it should have more diffusive, absorptive or what kind of properties. Any ideas?

Thank you! 🙏 I am looking forward to taking some time out to apply your advice further. I am now really realising what the sound stage is all about.

I totally agree that other layouts could be a game changer, luckily I have other spaces to create a much more optimized room (I'm truly realizing just how much, right now, after setting up the improvised bass trap), but right now I prefer this layout. I don't rule out creating a dedicated space in the future. Thanks for your point of view!

The bass trap has worked really well. Every little change is very significant. I've been listening to a lot of mp3 music on 200€ studio monitors all my life, this is all really new to me! I really appreciate the advice. By the way, the trap is full of grandma's blankets.

That's the first thing I'll do, right wall and bass trap in the corner. About digital correction, for now I'm going to keep my equipment and budget as they are for a while, so it is discarded as a short/medium term measure. Gracias por los consejos! ✌✌

Thank you! It is a nice place. At the moment the setup forms an equilateral triangle of 2.1m. I am still noticing an imbalance on the right side, which I am solving with -2db on the left speaker, but I feel that this is not the best solution. I imagine that the right wall is causing the imbalance and I'm willing to put something to avoid the direct reflection. This afternoon I will try something and give you my impressions.

This is what I will do next, along with minor corrections to the direction and position of the speakers, within the current limitations. Thank you very much for your suggestions, they are very helpful!

Do you mean this space? These are Jamo's that I bought to enjoy the NAD until I start my first DIY speakers. I have put the loudspeakers back ‘inside’ the space of the columns without them being behind. The actual result is still an improvement. I want to keep my living room as such without compromising too much on its layout. The TV cabinet and the columns are a centre around which the whole layout is built. On the other hand, I have noticed that if I direct the speakers a little beyond my shoulders, eliminating the convergence at the centre point, the image sensation in front of me is significantly greater, is it possible that this happens with these speakers in particular?