Sunday, December 8, 2019

BNO Acoustics YM-44: Jam Sync

A generation of new SMPTE according to the input SMPTE signal

Resonant
1) Tending to pass signals of a certain frequency or narrow range of frequencies more than signals of other frequencies.
2) Physical properties that tend to reinforce the energy at certain frequencies of vibration.

BNO Acoustics HD-70: Trim Status
Solid State Logic's console-automation mode that operates as follows: When a slide is at its trim point, the gain variations (fader movements) last programmed in the computer will be in effect. When the slide is moved from the trim point, gain or loss is added to or subtracted from the program.

Crossover, Active
A rack mountable unit used to separate frequencies leaving the soundboard into high's, mids, and lows with different outputs for each.

BNO Acoustics 6k-52: Scratch
1) A descriptive term meaning "temporary".
2) A scratch vocal is a vocal done during a basic recording session to help the musicians play their parts. At a later date the final vocal track is overdubbed.
3) The action of a musician or disc jockey quickly moving a record back and forth with a phono cartridge reproducing the stylus motion to create a rhythm pattern of sound.

Rotary Control
A level or other control in a device that has a circular movement rather than moving in a straight line.

Octave
A difference of pitch where one tone has a frequency that is double or one-half of the frequency of another tone.

Saturday, December 7, 2019

BNO Acoustics HD-70: Reflected Sound

Sound that reaches a microphone or listener after one or more reflections from surrounding surfaces.

Regulated Power Supply
A device to supply power to electronic equipment whose output voltage will not fluctuate when more equipment is turned on, or if there is a change in voltage of the power line.

BNO Acoustics TR-12: Electronics
1) On a tape machine, the housing for and the channel circuitry which processes the signal to be fed to the heads, provide bias, and playback.
2) The branch of science dealing with the behaviour of electrons/charges in vacuums, gases, semiconductors and special conductors.

Plate Program
A setting in a digital delay/reverb effects device that simulates the plate reverberation sound.

SMPTE
1) Society of Motion Picture and Television Engineers, a professional society.
2) A term loosely used to mean SMPTE Time Code.

BNO Acoustics GK-3: Cord (Speaker, Mic, Instrument)
Used to connect a sound system together. Each type of cord is made for a specific purpose and should not be used in place of another type of cord, not even if they look alike. Also see "cable"

Line Out (Line Output)
Any output that sends out a line level signal, such as the output of a console that feeds a recorder.

Friday, December 6, 2019

BNO Acoustics XV-16: Send

A control and buss to feed signals from the console channels to some outboard device such as a reverberation effects unit.

Foldback
A European term for the signal sent to the stage monitors in a live performance.

Fly In
1) To add sounds into a mix or recording that have no synchronization.
2) An application of this where a performance from one part of a tune is recorded and then recorded back into the recording at a different time in the recording.

BNO Acoustics XR-90: Bar
A term meaning the same thing as the term Measure (the grouping of a number of beats in music, most-often four beats).

Time Code
Short for SMPTE Time Code (a standardized timing and sync signal specified by the Society of Motion Picture and Television Engineers).

Tracking Error
The difference in movement of a playback stylus across the face of a phonograph record compared with the cutting stylus on the disc recording machine.

Live Recording
1) Recording where all the musicians are playing at once and overdubbing is not done.
2) A recording with a lot of natural reverberation.

Thursday, December 5, 2019

BNO Acoustics GK-3: Fletcher Munson Effect

A hearing limitation shown by Fletcher Munson Equal Loudness Contours (as music is lowered in volume, it is much more difficult to hear bass frequencies and somewhat harder to hear very high frequencies).

Riding Faders
Adjusting up the faders for low passages so the signal will be recorded well above the noise and taking the faders back down during loud passages to prevent distortion.

Modem
A device that allows digital data to be sent and received over telephone lines.

BNO Acoustics HD-70: Line Out (Output, Send)
Where a signal leaves the board or component.

Preview
1) To play the edit in a digital audio editing system before committing to save it.
2) In a computer assisted punch in, to have the computer play over the area while switching the monitoring so that the effect of the punch in can be heard before it is performed.
3) Short for preview signal (a signal in disc recording that matches and is earlier than the signal being recorded).

BNO Acoustics QS-4: Voice Over
The recording of vocal announcements over a bed of music in commercials.

IC
Abbreviation of Integrated Circuit (A miniature circuit of many components that is in small, sealed housing with prongs to connect it into equipment).

Wednesday, December 4, 2019

BNO Acoustics YM-44: Light Emitting Diode

A light that allows current to flow in one direction only and emits light whenever a voltage of a certain level or beyond is applied to it.

BNO Acoustics BP-40: Test Tape
1) A less formal name for Alignment Calibration Tape (a test tape with tones of various frequencies all precisely recorded at a specified magnetic recording level used for tape machine alignment).
2) One of a few initial tapes made with high-speed duplication, and is listened to for approving the quality before production copies are made in volume.

FOH (Front of House)
Refers to the speakers that face toward the audience. Also called the "main" speakers.

Program Switch
A switch which activates the Program Mode (Record Mode) of the monitor section connecting the monitor inputs to the console outputs feeding the multitrack tape recorder (used during the recording session).

Op Amp
Short for Operational Amplifier (an amplifying circuit used in most audio devices).

BNO Acoustics Speakers: Schematic Diagram (Schematic)
A diagram that shows the signal paths and electronic components of a device.

Crosstalk
Leakage of an audio signal into a channel that iris not intended to be in, from an adjacent or nearby channel.

Tuesday, December 3, 2019

BNO Acoustics QT-5: Synchronization

The running of two devices (such as two tape decks) in time with one another.

Record Calibration Control
A tape machine electronics' control that matches the signal level monitored in the input position of the output selector switch to that of the signal recorded and played back from the tape.

Signal Processing
Changing the sound of the instrument or other sound source with equalizers, limiters, compressors and other devices thereby "processing" them to be recorded onto a master.

Generating Element
The portion of the microphone that actually converts the movement of the diaphragm into electrical current or voltage changes.

Wireless Microphone
A microphone with an FM radio transmitter inside of its case that transmits a signal to an FM receiver off of the stage area.

Cut
1) One selection (one song) on a pre4ecorded music format.
2) A term with the same meaning as Mute (to turn off a channel or a signal).
3) To reduce gain of a particular band of frequencies (with an equalizer).
4) To not pass a particular band of frequencies (said of a filter)

Reverberation Time
The amount of time it takes for reverberation to die down.

Monday, December 2, 2019

BNO Acoustics BP-40: Waveshape

The shape made by the fluctuations of a quantity over time.

Resistance
1) That property of a conductor by which it opposes the flow of electric current, resulting in the generation of heat in the conducting material, usually expressed in ohms.
2) Opposition to the flow of current in one direction or which does not represent different opposition for signals of different frequencies.

Take-Up Tension
The force applied by the take-up reel motor of a tape machine during the play mode so that the tape is evenly wound on to the take-up reel.

Port
1) An opening in a speaker case or in a microphone case, just behind the diaphragm.
2) A jack accepting or sending digital data.

BNO Acoustics GT-60: Monitors
The speakers facing back onto the stage and the system or amps, equalizers, and effects attached to them.

Key
The control of a dynamics processing device by an external audio signal.

Parallel
1) A circuit interconnection in that the source feeds several branch circuit components and interruption of current flow in one component does not stop current flow in another.
2) A method of sending data where each digit of a digital word is sent at the same time over separate wires/connections.