It's such a pleasure to watch the French and the German speaking in english somewhy ;)

Can't thank you enough for what you're doing Jesco. You probably know the tendency in audio-engineering circles to promote the "ear-only" approach, like if one does not need measurements and should only listen trying to find something pleasing. Hence the "every voice his own microphone" approach, which probably pleases manufacturers most :) With your information I really started feeling that I'm finally understanding where am I going in terms of building my own studio.

Nice interview. FYI: Materials are a lot cheaper in the USA. A bundle of twelve 4ft long x16in wide x 3.5in thick rockwool batts cost $60, available at any of the local home center. Oak wood boards 3/4 inch thick , 3.5 in wide, cost $12 per 4 ft board. I covered the entire panel frame with fabric so I could use pine furring strip boards that cost only $1 for a 4 ft long board. The fabric cost the most. I spend about $60 for very nice fabric to cover twelve 4ft long x16in wide panels. All the materials were available locally and fit in my Honda Accord, so I didn't have to pay (or wait) for delivery. PS: You should use a pneumatic staple/nail gun next time. I put panels at the first reflection points on the side and rear walls, smaller panels to cover the ceiling and desk reflection points. For bass traps, I put panels 3 deep set diagonally across the front corners, 2 deep across the rear corners, and triangular panels mounted where the ceiling meets the front and rear walls. You give the best acoustic advice on the web. (I have 2 Engineering Degrees plus a Masters Degree in Energy policy so I actually understand you.) Tks.

Great interview, I just recently built my own absorbers and traps myself and I can relate to so much of this. Thank you both.

Great interview. I need to get this course. I'm literally at this point where I've built a bunch of absorber panels, but it looks like I need to apply this "systematic approach", so that I can ensure success in the outcome.

Thanks so much, again very informative and once again proves what's you can achieve when doing a few, but thought through, steps!

Hey Jesco, Loving these interviews, as always. In my previous studio, I used twenty 18cm deep panels, and they worked like a charm. Now, in a smaller room (2.49x3.12x2.45m) after selling my old panels, I'm thinking of going for those fabric stretch PVC profile systems for acoustic walls. But, I'm wondering if covering more surface area will really give me significantly better results than the panels. In a previous video you mentioned diminishing returns; what do you think? Your thoughts would be awesome! Thanks

I hear early reflections in his voice quite heavily for a sweet spot (assuming he is sitting in the sweet spot). Very surprised with the prices, here in Brasil rockwool is insanely more expensive than wood.

For me empty room is very hard to find seating position i prefer corner and middle absorber in place much easier to hear but i cant put sub in corner anymore so i use middle point.

Isn't it right that since echo time in LF not improved (500ms), that will still have huge impact on bass? Like, if frequency keep playing when other note already started - will it create additional disruptions in the said frequency response?

How thick are Paul’s panels and did he have any air gaps? It sounds like he didn’t as he said he screwed them directly to the walls. Thanks

Great video, Would these techniques translate to 15 channel home theater? I have an idea on where I should treat; ipsilateral and contralateral, corners for bass build up, and ceiling for for center speaker reflection. Curious if your ideas are only for studios.

Jesco, do you have anything to say about nearfield-subwoofer setups? If it would/could be beneficial etc

Is there a reason you chose to build the panels without the diffuser faces that Jesco himself uses? What are the dimensions of your room please, as it looks like it could even be as small as the space I have to convert to a studio, although sadly, I think this is still ages away due to the list of other home improvements to do.

Wouldn‘t it be better if he closed the gap to the wall of the front-corner traps? Also he didn‘t seem to have done anything on the back wall…. diffusors and combined diffusor-bass-traps?

Sorry if I missed it but, the graph axis at 43:50 are SPL, Frequency, and what? Decay time in ms? Thanks!

10 base traps only 😮 Please don’t tell Eric Velentine ❤

didnt catch which exactly rockwool was used? trying to find which one to take in europe but its so dificult as they dont need to measure gas flow resistivity anymore and it just syas ACCORDING TO EU STANDARTS.......which one to chose guys?

Low number of panels maybe but the room is small so the % of covered area is pretty high. The benefit of small rooms 😁

why do people pay hunderds Euro for a course, to know how to position yourself and put panels around your speaker and first reflections Points? Im not hating but what makes people pay that money?