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Hi, I don’t have a technical background in audio or education, but I believe that I may have contributed positively to the learning experience at ASR with some of my posts like on concert hall acoustics, bass and subwoofers, and psychoacoustics. I’d like to suggest that the best way to explore...

Oops, I should have written "in the range of," instead of "below" the 200-400 Hz frequency range! Thanks for illustrating (the Q/width of the first or lowest dip might further contribute to its effect). Perhaps erroneously, I tend think of this as in the transition zone of specular vs modal...

Thank you! This looks to me remarkably like an unsmoothed version of the so-called Shirley curve or dip (Shirley, B.G., Kendrick, P., and Churchill, C. (2007). “The Effect of Stereo Crosstalk on Intelligibility: Comparison of a Phantom Stereo Image and a Central Loudspeaker Source,” J. Audio...

Although I'm tempted to suggest that you just Google something, I wonder if you're at cross-purposes here Phase difference or delay depends on frequency "A phase difference \<t> corresponds to an interaural time difference (ITD) of It = ±<t>K2Trf) for a tone with frequency f."...

Oh, I meant a reference regarding Audio Note speaker setup and who the expert was. I actually wondered at first if you meant Audio Physic, but Joachim Gerhard's recommended subtended angle was towards the bottom of the 70-90 degree range, depending on speaker dispersion, so I figured that...

I wonder if you could provide a reference for this? I'm curious to read more Do you mean this Robin Miller? http://www.filmaker.com/ I don't understand this explanation as written. Can you please elucidate further? It seems to me that microphone setups and angle can vary, so from what I can...

Sorry! Here is an updated version: https://www.itu.int/rec/recommendation.asp?lang=en&parent=R-REC-BS.1116-3-201502-I

I find it difficult to respond to this reply in any meaningful way, but I imagine that @j_j might have fascinating historical or psychoacoustic insights into this. I think that it's also possible that sometimes standards start with choices, which are not entirely arbitrary, but may be influenced...

According to Robert E Greene, there is a theoretical or mathematical argument to be made for 90 degrees of separation for accurate reproduction of Blumlein recordings, though this is not discussed in the patent.

Do you mean standards like this? https://tech.ebu.ch/docs/tech/tech3276.pdf I had mentioned this publication in a different context (https://www.audiosciencereview.com/forum/index.php?threads/concert-hall-acoustics-links-and-excerpts.51487/#post-1854024), but you might find it interesting...

Thank you, @Neuro for you post, also @Keith_W for your kind comment. Pardon my contrariness: The phrase "spatial sound" could be interpreted in multiple ways. There can be, for example, immediate impressions of being in much larger volume spaces, owing at least in part to truly diffuse ambient...

I thought this was an interesting approach to getting better bass response from the equivalent of a CBT24: https://www.diyaudio.com/community/threads/shaded-array-twelve-3-full-range-drivers-with-35hz-25khz-high-output.412154/

I have some additional references with selected quotes and some commentary here: https://www.audiosciencereview.com/forum/index.php?threads/bass-and-subwoofers.51589/

You wrote about identifying frequency, but you seem to be describing localization (like how would one identify higher frequencies through level?). Pitch perception and processing are different. I put together a list of links on psychoacoustics with some selective quotes and summary here...

The Harman curve (when it comes to loudspeakers in rooms) comes from an average of 11 listeners' adjustment of bass and treble when given the equivalent of two "knobs" (one for bass at hinge frequency of 105 Hz +15 to -5 dB and other for treble at 2.5 kHz +5/-10 dB) using a pair of Revel F208s...

This seems like a great price for anyone in San Antonio TX: https://www.audiocircle.com/index.php?topic=189479.msg1982536;topicseen#new

To clarify just a bit, here is one example of where listener characteristics may be relevant...

I can't answer your questions directly, as I'm not qualified, also I suspect that the answers may depend to some degree on the signal type, frequency range, SNR, and perhaps listener characteristics. You may find this discussion, especially contributions by @j_j , to be helpful...

Hi, I think that it's possible that multiple factors are getting conflated here. I just came back from a performance at Symphony Hall in Boston (Vivaldi Four Seasons, also Piazzolla's Estaciones Porteñas). The stage is elevated, and I sat in the orchestra section (row S, if you're curious). I...

@j_j Also, mention in Stereophile @Jim Austin https://www.stereophile.com/content/assessing-sonic-illusions