Room correction, DSP for dummies.


I have not paid a lot of attention to audio for some time, almost 15 years and as a result I am trying to catch up on some of the innovation and tech developments that have been popping up in that time. 

One of the more interesting to me is the advent of electronically guided digital signal manipulation to help quell small system issues and room reflections. It seems wildly promising but  the few systems that I have read about that seem to work well look to be  painfully expensive. 

Reports have seemed to indicate that this technology was making its way into other, more affordable formats but I guess I just don't understand or grasp where the field is going well enough to know where the bulk of the technology is and how its manifesting in our hobby. 

Who can help shed some light on where this tech is, how  its being applied and how can I make use of it without selling a kidney? Maybe that last part is not possible yet? 

Thanks in advance! 
dsycks

Showing 5 responses by grannyring

Well I have one way that worked for me as well as other picky Aphiles. 

- sell your dac
- sell your preamp
- sell your amp
- sell the power cords and ICs related to these products 

Take this sum of money and buy a Lyngdorf 2170 one piece audio system with SOTA room correction.  Great unit that replaced $18,000 worth of stuff for me with no regrets.  Lyngdorf also makes the  model 3400.  

Read up on it and decide if this is a viable option for you. Sound quality is first rate and the room correction assures your speakers sound as the designer intended in your particular space. Depending on what you already have for separates you may save money in the end. 
Builders voice their speakers to sound as they desire. Many work hard and carefully for a certain set of sonic attributes, wether it be neutrality, touch of warmth, vivid resolution etc....

Problem is we bring the speakers home and place them in a myriad of rooms greatly impacting the resulting sound. Some have to place the speakers closer to a front and/or side wall than ideal. Some have rooms that cause bass boom. Others have rooms that do not allow for symmetric placement of the speakers within the space throwing off the imaging and balance. Many other sonic compromises occur because of our listening spaces/rooms. Many of us share the listening space with the living room and cannot place all manner of room treatments.

Room Perfect room correction takes the room out the equation and deals with these room sound degrading realities. The speaker is now able to sound as it should without room editorializing and degrading.
@david_ten The contemplating comment was in regard to your post with many more questions. I just don’t know how to say it any clearer or more simply? No, outside of the builder’s written or verbal comments on sonic design goals I don’t know exactly what they are shooting for. I don’t need to. Remove the room’s impact as much as possible and the speaker is free to be what it was intended to be....a high fidelity instrument.
Too much contemplating the navel here folks in my humble opinion.  I think my earlier post said it well and I really have nothing to add.  Big fan of removing the room’s impact as much as possible so speakers sound as designed, not perverted by room and speaker placement compromises.  Not all room correction designs are created equal and some do a much better job of doing no harm. Lyngdorf nailed it as proven through use.  
Remarkable statements for a remarkable product 🙂 All I can say is listen to a 2170 or a 3400 properly set up and you will get it. Simple stuff here IMHO. Plenty of rigs don’t sound that good, or as good as the designers intended because of poor speaker placement and room issues. Think of it like this. A talented chef prepares a wonderful tasting ingredient....perhaps a sauce. It tastes wonderful when used in well executed recipes, but even this spectacular tasting ingredient can be part of an awefull tasting dish when the total recipe just doesn’t work. The ingredient, while awesome, in the end did not produce its intended result....a great tasting dish. We listen to systems, not just speakers or amplifiers. The room is an ingredient. How speakers are placed is also an ingredient. Our gear ingredients. Many other ingredients. SOTA room correction helps assure several of the ingredients work well together so you are more likely to to have a successful total recipe.....a great sounding system. Room correction is your personal chef. Oh my, this last line is now coming back at me in the form of a question 🙂

Speaker builders have no doubt heard their creations in systems that did not sound as they intended. I am sure they have been mortified with the resulting sound...not as they intended. Builders intend their speakers to sound good in your home, not harsh, not dull, not poor.  That is what intend means.  Surely no designer intends a speaker to sound poor in your home? 

Ok, my brain is now tired as I tried to extract too much out of what in the end is a simple truth. I am most likely not smart enough to understand the deeper meaning of the questions. Most likely the case here. The OPs post is about DSP for dummies! I will go back to developing bacon flavors now...my real expertise!