Recent content by MeJ

I spent years as a totally-not-famous but competent mix engineer. At 73 my HF response rolls off sharply above 12 kHz, but when CD quality became available and I still had 20 kHz available I was almost instantly convinced this was an unbeatable format for consumption, even with dodgy companding...

When it breaks... I don't watch TV, my wife does.

I can't conceive of being deaf enough to listen to vinyl again, except for transcription purposes. I suppose if my ears deteriorate enough to enjoy it -- it won't matter. I detest whole house music systems, I only use paid Tidal to keep an ear on new releases, and only listen in my studio. If I...

Sorry bit busy. Will try and answer at w/e

Thanks DanDan for your correction. I have not yet seen any point on which we disagree. I can't see anywhere that I recommended using quarter-wave techniques: I am simply attempting to explain first principles; hand out a fishing rod rather than a fish. OTOH, if you want to maintain that...

Thanks for your comments, DanDan. You have highlighted a rigid panel absorber with a treatment on one face which means it does not absorb much at high frequencies (note the 0.23 figure @ 4KHz) but is effectively a membrane absorber at lower frequencies (ie, @ 250 Hz. And yes, of course, standing...

image adjusted

Bass treatment in a small room: How to achieve the desired effects. First, what are bass frequencies? I can’t find an agreed definition. Wikipedia says 16-256 Hz, in other words the musical bass definition. For me, bass mainly is less than 100Hz, that is low bass instruments, bass drums, and so...

Re duvets: I, like you, am keen on 'natural' materials, especially against my skin. Bulk cotton (like futons) can be useful in audio, wool, and particularly longhair wool, more so, especially in speaker design. But polyester duvets are very effective if thick and dense enough, which is why I...

Part 2 OK, so the plan: we need to add some bass trapping. we need to deal with wall reflections from the speakers. we need to deal with speaker placement and comb filtering (SBIR). we need to make the room as symmetrical as possible at mid frequencies and above Then measuring what we have...

So, what I'm going to do is tell you what I would do with your room and why. I'm actually recording this in a very similar sized room which has very similar problems. One advantage I have here is that the ceiling height is quite a lot greater so I've been able to put lots of stuff on the...

Sorry for delay, got stuck with stuff. Will post today.

Good, you are still there and thanks for posting the plots, that helps.. I'll write up a response then and post it tonight or tomorrow: there's some things you can do, but recording and mixing in a very small space involves inevitable compromise, as no doubt you are aware :) Overall, AVNirvana...

I'll post some reply tomorrow... have to write it up.

On re-reading my rant, it could be interpreted as dismissing audition as a useful tool. I'd just like to add, that's absolutely not the case, the human 'ear' (meaning the whole physiological and psychological system) is the final arbiter when it comes to musical decisions. But the ear has to be...