Brooks Audio Design

The first echoes in a room, caused by the sound from the sound source reflecting off one surface before reaching the listener. Hypercardioid Pattern A microphone pick up sensitivity pattern where the least sensitive pick up point is more than 90 degrees but less than 150 degrees off axis (usually 120 degrees). Brooks HI FI projectors Axis A line around which a device operates. Example: In a microphone, this would be an imaginary line coming out from the front of the microphone in the direction of motion of the diaphragm. Barrier Micing A method of placing the head of a microphone as close as possible to a reflective surface, preventing phase cancellation. Brooks Hi Fi reviews Half Step A pitch difference of the amount that is present between adjacent keys on a piano. Crossover 1) A route leading from one side of the stage to the other, out of the audiences view. 2) An electronic filter in a sound system that routes sound of the correct frequency to the...

The condition of obtaining a change at the output of the device which is proportional to the change occurring at the input. File A collection of digital data stored in a computer's memory bank or on a floppy disc. Brooks Hi Fi reviews Coax Two-conductor cable consisting of one conductor surrounded by a shield. Ground Loop A double grounding of a line or electronic device at two different "ground" points of differing voltage. Brooks RM 909 reviews Initialize To prepare a digital storage medium (like a floppy disk) so that it will accept and store digital information bits. Equalizer (Parametric, Graphic) This is used to filter out and adjust specific frequencies in the PA. This is the part of the PA where you have the most control over the band's overall sound. It is also the number one weapon against feedback. Headphones Devices that can be worn on the head with small speakers that fit over the ears (or sometimes into the ears). ...

An electric guitar or device played like an electric guitar that puts out MIDI signals that can be used to control synthesizers and sound modules. Atom The smallest particle which makes up a specific substance. It's composed of a center around which electrons revolve. Brooks HI FI projectors Bottom The bass frequencies (as in "needs more bottom end"). Delay Outboard sound equipment that can momentarily stores a signal being sent to part of a P.A. system so that delayed reinforced sound reaches the audience at the same time as live sound from the stage. Brooks RM 909 AES An abbreviation of Audio Engineering Society. Alternating Current Electric current which flows back and forth in a circuit. Action In guitar playing, action refers to how far the strings sit off of the guitar neck. When strings are close to the neck, it is referred to as "Low Action". When the string sit far above the neck, it is called "High Action...

1) Effect used to squash the sound together. Used properly, it can take the edge off or your sound. Used improperly, it can take the life right out of your system and make it sound like an MTV mix. 2) A piece of sound processing equipment that ensures all wanted signals are suitably placed between the noise and distortion levels of the recording medium. It evens out the unwanted changes in volume you get with close-miking, and in doing so, adds punch to the sound mix. A Limiter is used to stop a signal from exceeding a preset limit. Beyond this limit, the signal level will not increase, no matter how loud the input becomes. A Limiter is often used to protect speaker systems (and human ears) by preventing a system from becoming too loud. Expansion The opposite of compression; for example, an expander may allow the signal to increase 2 dB every time the signal input increased by 1 dB. Brooks RM 909 High Hat A double cymbal on a stand which can be played with a foot pedal ...

A drawing of several curves showing how loud the tones of different frequencies would have to be played for a person to say they were of equal loudness. Buss (Bus) A wire carrying signals to some place, usually fed from several sources. Brooks HI FI projectors Front Loaded A speaker cabinet where the speaker faces out toward the front. Head 1) In tape recording, the transducer (energy converter) that changes the audio energy from electrical energy to magnetic energy and back; also the devices that apply magnetism to the recording tape for other purposes such as in the erase head. 2) The part of a device that immediately includes the transducer to change sound or audio signals from one energy form to another. Brooks Hi Fi speakers Format 1) The number of tracks, their width, spacing and order for tape recording. 2) To prepare a digital storage medium so that it will accept and store digital information bits. Half Step A pitch difference of the amount ...

1) A condition where two signals mix together to form one sound or to give the sound of one sound source or one performance. 2) Mixing the left and right signal together slightly which makes the instruments sound closer to the center of the performance stage. 3) A method of panning during mixing where instruments are not panned extremely left or right. Gain Structure The way in which the gain varies in the stages or sections of an audio system. Brooks RM 909 AC 1) Abbreviation for alternating current. 2) An abbreviation of the term Alternating Current (electric current which flows back and forth in a circuit; all studio signals running through audio lines are AC). Fret Buzz A buzzing sound made when a note is not properly fretted. Common with cheap guitars or beginning guitar players. Brooks Hi Fi speakers Crossover Frequency 1) The frequency that is the outer limit of one of the bands of a crossover. 2) In the Lexicon 480L delay/reverberation effects ...

Feeding the output of an electric instrument (like an electric guitar) to the recording console or tape recorder without using a microphone. Group 1) A number of channels or faders that can be controlled by one Master VCA slide. 2) A shortening of the term Recording Group (a buss or the signal present on a buss). Brooks Hi Fi speakers Analog To Digital Converter The device which does the conversion of a quantity that has continuous changes (usually of voltage) into numbers that approximate those changes. Crossover Frequency 1) The frequency that is the outer limit of one of the bands of a crossover. 2) In the Lexicon 480L delay/reverberation effects unit, the frequency at which the bass frequency reverb time is in effect rather than the mid frequency reverb time. Brooks RM 909 reviews Golden Section A ratio of height to width to length of a room to achieve "good acoustics" and first recommended by the ancient Greeks. The ratio is approximately th...