Recent content by Adhoc

Those 2 discs would come in handy for a comparison between the different speaker arrangements for immersive audio. (I recently installed 19 surrounds, to be able to switch with as little compromise as possible for speaker positions between Auro-3D, Atmos and DTS X Pro. Choices: Bed layer from...

Very good write up Todd! It covers a lot of questions people can have about Atmos, DTS-X and Auro-3D. @jhaider ;study the link to the 30 page Auro-3D installation guide Tood has in the write up https://www.auro-3d.com/wp-content/uploads/documents/Auro-3D-Home-Theater-Setup-Guidelines_lores.pdf...

I agree with Matthew, room gain and pressure gain (= for frequencies below the rooms lowest mode frequency) is something which can be very important when planning a listening / HT room from scratch or choosing subs / DIY-ing them. My room is 7,86 m long (25,8 ft). With all surfaces in 20 cm /...

@Miro; If you believe Herb Singleton at Cross Spectrum Labs and who makes individual calibrations of microphones very similar to the UMIK-1: Yes, use the 90 degree calibration file and point the mic at angle towards the ceiling...

Cool down AJ.There’s a lot of unnecessary aggesive attitude from you, when you try to make your point. Problems also arise when you seem not to notice or comprehend what other people are actually writing and what that (can) mean in a further discussion or mental process figuring out solutions to...

Well, as I see it if speaker + room interaction is of interest: Load the 90 degree calibration file when REW is opened up, then aim the mic at around 70 degrees.

@Miro; You mentioned critcal distance and having listening position there = higher ratio of direct sound.The more live the room is (reflective) the more it diminishes. The more absorbtive it is, the more critcal distance increases, -as you are damping otherwise noticable reflections. From the...

Thank you for your very prompt reply John and my apologies for my late answer. (-Vacation time, so I have been away.) Whatever the cause was for those "funny" ETC-changes, your suggestion to: "Delete preferences and shut down" was the cure. Everything seems to be OK after that and the ETC looks...

Thanks John. Regarding the Sweep Repetitions-options; I made those sweeps several years ago so it must have been before I bought the UMIK-1. -Good (but regretable) to know Sweep Repetitions is not avaliable together with UMIK-1. I made some new Test-measurements as the original mdat file...

The ETC-values for one and the same measurement show different figures depending on if I have also pushed the RT60-button or not. Sems strange to me. Is there a good explanation for why this happens and which value would be more true if one is chasing reflections? If I save the measurements...

Seems to be nice planned addition to REW. Not to do with above but one request I have is if it's possible to have a button for "Uncheck all boxes" for already made measurments when opening a file of saved measurements. Reason: It is quite tedious to manually uncheck say 50 measurements from...

I wrote I have little confidence in what is said on the Acoustic Fields’ site and their videos. Lots of mumbo jumbo and some hard to accept claims ( =lies in my view), -like they invented activated carbon absorbers. That is old stuff and has been studied by acousticians and technical institutes...

I would stay away from the site Acoustic Fileds and Dennis Foley. The site contains several incorrect statements and also some outright lies. A much better one with sound advices (pun intended!) and no rubbish is: http://arqen.com/acoustics-101/room-setup-speaker-placement/ At first glance It...

It looks like the microphone was placed fairly close to the room's centre and all 4 subs were connected with same polarity. You can try and check out how the measurement turns out if both subs at the backwall are connected with switched polarity. If the microphone is placed in the same place...

The kraft paper shouldn't make that much of a difference. Bass and midrange has enough energy to make it vibrate, so those sound waves will pass through and not be reflected to any degree to speak of.