Harry Olson wrote a book entitled “Acoustical Engineering”. It was published in 1991 but with only a new introduction from a 1957 original publication. The book “Acoustical Engineering” was based on an earlier work entitled, “Elements of Acoustical Engineering” copyrighted 1940 and 1947. I like to look at older acoustic books and read what the [...]

In a professional recording studio, we have the control or monitoring room. We also have the “live” room. A live room is a room about which we seek to acoustically create a larger sound through higher than normal reverberation times. In a live room, it is necessary to acoustically treat some reflections from room boundary [...]

Tomlinson Holman, in his book entitled “5.1 Surround Sound Up and Running”, discusses the room acoustic requirements for monitoring a 5.1 mix. He states, ” Multichannel affects the desired room acoustics of control rooms only in some areas. In particular, control over first reflections from each of the channels means that half-live, half-dead room acoustics [...]

  Choosing the correct speaker for the room you are going to be using it in involves many factors. All of these factors must be considered when selecting a loudspeaker for your listening room. We are just referring to two channel sound sound with a left and right channel speaker. We need to consider low [...]

What is Good Sound? I walk through trade show rooms and listen to the exhibitors tell me what they consider good sound. They tell me their room is kind of their idea of good sound. Some tell me that their room sounds pretty good but does not fall into “good sound”. A hotel room is [...]

Head phone sound is different than sound in our rooms. Both have their good and bad points. Head phones seal our ears with a small oval shaped room. Inside that “room” is a small speaker that produces sound energy and fires it directly into our our outside ear. From there, the sound travels into our [...]

A popular search term in audio is “db meter”. Sometimes people search for terms that they think go together or they have seen or heard it used somewhere. Sometimes there is a combination of words into a phrase that tries to illustrate an audio point or concept. Lets examine each word within the search term [...]