Free Space Listening. Listen To the Music...Without Hearing The Room!
There are many urban myths when it comes to room acoustics. Those that are not informed will fall prey to these myths and not be able to realize the full potential of their rooms and sound systems within them. This book looks to debunk said myths and provide you, the reader, with all the tools you need to make your studios and rooms perform to their best. No more sticking plaster solutions! More
The four main sections of this e-book are as diverse as they are practical and interesting.
The Acoustic Perceptions section examines the urban myths that are associated with room acoustic technologies and shows why definitions and perceptions have been distorted by the large manufacturers to selfishly promote their products. There are many urban myths when it comes to room acoustics. Those that are not informed will fall prey to these myths and not be able to realize the full potential of their rooms and sound systems within them. For example, many manufactures distort the definition of low frequency to the point that they call foam wedges and boxes filled with building insulation, low frequency absorbers. We examine these myths and try to find cause and examine effect, so you can make an informed decision on technology purchases. We have all bought something that claimed to be this or that, but when we put it into our room, we still had the problem that we bought the unit to solve for us.
Our Acoustic Technology section examines past and current efforts at dealing with sound absorption and sound diffusion in our professional recording studios, listening rooms, and home theaters. Technology has grown rapidly especially when it comes to electronics. There are advances in amplifiers, digital to analog converters, and processing speed and power have increased exponentially. Unfortunately, room acoustic technologies have not kept up with the electronics. Products that absorb or diffuse sound energy are basically the same technologies that have been around for years. This is good because we all know what works well and what does not. For those things that don’t work well, we examine many new and different approaches to dealing with room acoustical issues.
The Room Set Up section examines what size of room to use, for what purpose and gives assistance on where to place speakers and listening position. In small room acoustics, room volume starting on the low side of 1,500 cu. ft. and going upward to 6,000 cu.ft., we have many acoustic variables that must be addressed. We have the low frequency pressure issue which is related to room dimensions and room volume. We also have the reflections that occur from each and every room boundary surface. Positioning our speakers or sound generating devices into the room in order to arrive at the best balance of all the conflicting variables requires a starting point based on science, but a final position based upon the individual subjective impressions of the listener. The room set up section gives you many starting points to begin your adventure.
Finally we have the “How To” section which explains how to use and even build sound absorbing, sound diffusion, sound reinforcement and sound isolation technologies. This chapter explains the actual reasons why you need to do things that will help you to accomplish your acoustical objectives. There are some step by step processes explained, but the main reason for this section is to explain the theory behind each process and provide some application techniques that will go a long way towards your acoustical understanding.