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Title: Old/New approach to speaker design? Post by: christoffe on October 14, 2015, 02:19:46 pm https://www.youtube.com/watch?v=yC0hjRHCYs0
My question will be: How fast is that system? Title: Re: Old/New approach to speaker design! Post by: BertD on October 14, 2015, 03:55:54 pm My question will be: How fast is that system? How fast? What IS fast...? Bert Title: Re: Old/New approach to speaker design? Post by: christoffe on October 14, 2015, 03:59:48 pm My question will be: How fast is that system? How fast? What IS fast...? Bert http://www.stereophile.com/content/sounds-audio-glossary-glossary-f-h#QX5PsbiqLi5S1iUu.97 Title: Re: Old/New approach to speaker design! Post by: BertD on October 14, 2015, 04:11:38 pm Using that idea in mind then it will be slow in terms of digital responsiveness (all is DSP with common digital delay) but for the rest it will behave like any loudspeaker using the same drivers.
Not sure how well the DSP and amplification perform though... The idea is pretty good, much better than trying to DSP a speaker in a room at the listening position. Still I prefer the one seat speaker like my latest design which is average evenly narrow at most important frequencies... and, no need to DSP the midrange as a bonus! But you probably are suggesting other issues as well which is not my territory. ;-) Bert Title: Re: Old/New approach to speaker design? Post by: christoffe on October 14, 2015, 04:23:47 pm Using that idea in mind then it will be slow in terms of digital responsiveness (all is DSP with common digital delay) Not sure how well the DSP and amplification perform though... Bert Hi, That's the big question! On my system, as shown with a sample in the film, the room image (depth) is very poor. The musicians are playing in a small "band" behind the speakers. Moving the speakers appr. 2m away from the back wall will improve the room image, but that is impossible here. B & O controls the angle of radiation/**intensity** with "counterwaves" at certain frequencies as shown. Would be interesting to listen to their idea. Joachim Title: Re: Old/New approach to speaker design? Post by: PeterSt on October 24, 2015, 10:42:34 am Joachim,
With this principle it will be impossible to "create" a larger (more deep) room than you have. Thus, sound will never go beyond the wall's boundaries. There are no tricks applied here and all is just acoustical (reflections). Although I never heard it, I think people say that a (DSP) system like Lyngdorf has it, can go beyond walls. But the same people claim headaches and other anomalies coming from that (just getting literally sick of it). You can't fool nature (physics) I guess. Something else is that I am pretty sure that a system which relies heavily on reflections (like this Beolab 90 does) will sound heavily messy. Thank you - it was a nice watch with my Saturday morning coffee. :) Peter |