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Acoustic Space and Time

Published On: August 13, 2021Tags: , , ,

Need Some Space?

At Acoustic Sciences Corporation we’re known for our world-class, patented acoustic treatments for Hi-fi and Pro Audio environments. The QuickSoundField is well-known in the most prestigious ProAudio Studios in the world as an essential piece of kit. This week we hear from ASC President and inventor of the TubeTrap; Art Noxon, PE. Art shares some thoughts about the QuickSoundField’s place in the studio’s space.

A Discussion of Acoustic Space and Time

“The Quick Sound Field is an acoustic space that captures and circulates each sound you make, holding it just long enough so that you get to hear all of it. A very general definition of it is that the QSF is actually a device used to maximize our ability to perceive a sensory experience. Our hearing system collects all similar sounds that exist around us within any given 1/20th of a second and turns this seeming cacophony into one recognizable sound. Our eyes, taste, feeling, and all our senses, work in this way. The Quick Sound Field collects and holds the sounds we make just long enough to enhance our perception of the sound. If it held it any less time, we wouldn’t be saturated with the sound. If it held it any longer, we would become over-saturated with each sound and a sonic blur would begin due to the excess lingering of the prior sound.

The decay of sound inside the Quick Sound Field is very fast. It can be calculated and it has been measured. We know that the bulk of any given sound emitted into the QSF must effectively disappear within 1/20th of a second. When the traps are 6” apart, about 60% of the sound is reflected and 40% is leaked out every time the sound travels the 5 feet distance across the middle, between the sides of the QSF setup. This produces a regulated, steady bleed off of the sound that has been captured inside the QSF space. The decay rate (RT-60 is the time sound takes to die away by the amount of 60 dB) for sound captured inside the QSF is about 1/30th of a second. The RT-60 in a typical recording studio is about 10 times slower, around 1/2 second. Studios are slow because they are big, compared to the small size of the QSF.”

Read the rest of Art’s article about the QSF here
Learn more about ASC’s QuickSoundField here

This week we also share a new video from Mitch Malloy. Mitch performs Aerosmith’s Dream On with acoustic support from his beautiful red AttackWall used as a QuickSoundField for the video.

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