Echo Chamber: Room Acoustics Part 3 Jul07

Echo Chamber: Room Acoustics Part 3

A couple of months back in part two of this series, I explained how room modes can wreak havoc on in-room frequency response, and how kinetic bass traps work by slowing down the air particles that carry sound waves, reducing the energy of the reflected waves that cause peaks and nulls in response. The problem with these types of traps is that while they are very effective at medium to upper frequencies, they can be ineffective at dealing with low frequency peaks and nulls, which can often be the most problematic areas in a room. The reason why is that the velocity of the particles directly at the wall (where you would normally mount the...

Echo Chamber: Room Acoustics Part 2 Apr21

Echo Chamber: Room Acoustics Part 2

In part one of this series, I mentioned that as soon as I walked into my new apartment, I knew I would have to put in some significant acoustic treatments for my system to sound good. How did I know that? One word: echo. You don’t have to be an acoustician to understand how echo works, and how it can completely ruin any possibility of good sound, even with a million dollars worth of equipment. Ever tried having a conversation with someone in a concrete garage? All of those hard, flat, highly reflective surfaces can allow a sound to bounce around for several seconds before it finally decays below the threshold of audibility, making the...

Echo Chamber: Room Acoustics Part 1 Mar22

Echo Chamber: Room Acoustics Part 1

At the very tail end of 2016, I decided it was time to leave my sleepy home in upstate NY and head west to Portland, OR. Rather than deal with shipping all of my audio gear out, I felt it was a better idea to use the opportunity to sell much of what I had and give my setup a major overhaul, and so I waved a fond farewell to my Naim Supernait, Lindemann DAC, and Silverline speakers. In their place are an Electrocompaniet AW-60FTT power amp and EC-4.7SE preamp, Simaudio Moon 380D DAC, and Audio Physic Virgo V speakers. All the new gear is great of course, but as soon as I first stepped foot in my Portland apartment, I knew that there would be...