1) A two section device that is used in noise reduction systems. The first section compresses the audio signal, before it is recorded, and the second section, expands the signal after recording.
2) In Yamaha brand digital consoles, a signal processing function that applies both compression and expansion to the same signal.
Group Faders
The VCA faders of individual channels that are all controlled by a Group Master Fader (a slide control used to send out a control voltage to several VCA faders in individual channels).
Analog (Analogue)
Representative, continuous changes that relate to another quantity that has a continuous change.
Omni
A prefix meaning All.
BNO Acoustics XR-90: 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.
Pitch to Voltage Converter
A Device that will convert the frequency changes of an audio signal into proportional control voltage changes.
Loop (Effects Loop)
A signal path separate from the main signal paths where a line signal is routed out of the mixer through a series of effects units, and then returned back to the mixer. The electronics within the mixer can then be used to individually control the effects on each input channel.
Sunday, March 29, 2020
Saturday, March 28, 2020
BNO Acoustics YM-44: Wave Velocity
The time it takes for one point of the waveform to travel a certain distance.
BNO Acoustics GT-60: VGD
An abbreviation of "very good take", used when writing down the takes recorded on a tune.
Pause
The button or control mode where the tape machine is paused but with the drive mechanism ready for an instant start.
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.
Square Wave
A wave shape where the voltage rises instantly to one level, stays at that level, instantly falls to another level and stays at that level, and finally instantly rises to its original level to form each cycle.
Horn
1) The part of the speaker that emits midrange and higher range frequencies.
2) A speaker or speaker enclosure where sound waves are put into a narrow opening (by a speaker cone or driver) and the narrow opening flairs out to a larger opening.
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.
BNO Acoustics GT-60: VGD
An abbreviation of "very good take", used when writing down the takes recorded on a tune.
Pause
The button or control mode where the tape machine is paused but with the drive mechanism ready for an instant start.
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.
Square Wave
A wave shape where the voltage rises instantly to one level, stays at that level, instantly falls to another level and stays at that level, and finally instantly rises to its original level to form each cycle.
Horn
1) The part of the speaker that emits midrange and higher range frequencies.
2) A speaker or speaker enclosure where sound waves are put into a narrow opening (by a speaker cone or driver) and the narrow opening flairs out to a larger opening.
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.
Friday, March 27, 2020
BNO Acoustics GK-3: Cut-Off Frequency (Turnover Frequency)
1) The highest or lowest frequency in the pass band of a filter.
2) The highest or lowest frequency passed by an audio device (the cut-off frequency is usually considered to be the first frequency to be 3 dB lower than a reference frequency in the middle of the bandwidth of the device)
BNO Speakers: Earth
The British version of the term Ground (In electronics, a place that has zero volts).
Timbre
The timbre of the instrument is what makes an instrument sound like that instrument and not another, even though the other instrument may be playing the same pitch.
BNO Acoustics LK-61: Record Ready
A control state of one track of a multitrack tape recorder where the track will go into record when the record function of the tape recorder is activated.
Sample Rate Conversion
The conversion of digital audio at one sample rate to digital audio at a different sample rate without first converting the signal to analog.
Proximity Effect
In directional microphones, the boost in the microphone's output for bass frequencies as the mic is moved closer to the sound source.
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.
2) The highest or lowest frequency passed by an audio device (the cut-off frequency is usually considered to be the first frequency to be 3 dB lower than a reference frequency in the middle of the bandwidth of the device)
BNO Speakers: Earth
The British version of the term Ground (In electronics, a place that has zero volts).
Timbre
The timbre of the instrument is what makes an instrument sound like that instrument and not another, even though the other instrument may be playing the same pitch.
BNO Acoustics LK-61: Record Ready
A control state of one track of a multitrack tape recorder where the track will go into record when the record function of the tape recorder is activated.
Sample Rate Conversion
The conversion of digital audio at one sample rate to digital audio at a different sample rate without first converting the signal to analog.
Proximity Effect
In directional microphones, the boost in the microphone's output for bass frequencies as the mic is moved closer to the sound source.
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.
Thursday, March 26, 2020
BNO Acoustics BP-40: Program Number
The number of the pre-recorded selection in a CD or DAT.
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).
Floor
1) An alternate tam meaning Range (a limit on the amount the signal is reduced when the input signal is low by an expander or gate).
2) A shortening of the term Noise Floor (the level of the noise).
BNO Acoustics YM-44: Non-Linear
The condition of obtaining a change at the output of the device which is not proportional to the change occurring at the input, causing distortion.
Sound Tools
A trademark of DigiDesign for a digital audio editing system.
BNO Acoustics SQ-9: SPDIF
Shortened from the first letters of Sony/Phillips Digital Interface, a standard for sending and receiving digital audio signals using the common RCA connector.
Direct box
Used in line to convert a high impedance signal into a low impedance signal.
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).
Floor
1) An alternate tam meaning Range (a limit on the amount the signal is reduced when the input signal is low by an expander or gate).
2) A shortening of the term Noise Floor (the level of the noise).
BNO Acoustics YM-44: Non-Linear
The condition of obtaining a change at the output of the device which is not proportional to the change occurring at the input, causing distortion.
Sound Tools
A trademark of DigiDesign for a digital audio editing system.
BNO Acoustics SQ-9: SPDIF
Shortened from the first letters of Sony/Phillips Digital Interface, a standard for sending and receiving digital audio signals using the common RCA connector.
Direct box
Used in line to convert a high impedance signal into a low impedance signal.
Wednesday, March 25, 2020
BNO Acoustics QT-5: 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 the width 1.6 times the height and the length 2.6 times the height
Distorted
The way your PA sounds just before it blows up. Fuzzy and scratchy. If you hear this, it either means you have something hooked up wrong, or something in the system is going bad. It could be anything from your super expensive soundboard to a five dollar patch cord.
Lead Sheet
A written chart showing the melody, lyrics and chords of a tune with full musical notation.
BNO Acoustics LK-61: Repeat Echo
An echo effect caused by discrete repeats of a program source by using a long delay time and feedback on a delay line. Also called Space Echo.
Keynote Number
A number assigned to each key of a synthesizer or controller keyboard that is transmitted in the MIDI signal.
Filter
1) A device that removes signals with frequencies above or below a certain point called the cut-off frequency.
2) An equalizer section, used in this sense because filters are used with other components to give an equalizer its frequency response characteristics.
3) The action of removing signals of some frequencies and leaving the rest.
4) A mechanical device to smooth out speed variations in tape machines called a Scrape Flutter Filter- more usually called a Scrape Flutter Idler
Error Detection
The process of discovery that sonic information bits have been lost in digital audio.
Distorted
The way your PA sounds just before it blows up. Fuzzy and scratchy. If you hear this, it either means you have something hooked up wrong, or something in the system is going bad. It could be anything from your super expensive soundboard to a five dollar patch cord.
Lead Sheet
A written chart showing the melody, lyrics and chords of a tune with full musical notation.
BNO Acoustics LK-61: Repeat Echo
An echo effect caused by discrete repeats of a program source by using a long delay time and feedback on a delay line. Also called Space Echo.
Keynote Number
A number assigned to each key of a synthesizer or controller keyboard that is transmitted in the MIDI signal.
Filter
1) A device that removes signals with frequencies above or below a certain point called the cut-off frequency.
2) An equalizer section, used in this sense because filters are used with other components to give an equalizer its frequency response characteristics.
3) The action of removing signals of some frequencies and leaving the rest.
4) A mechanical device to smooth out speed variations in tape machines called a Scrape Flutter Filter- more usually called a Scrape Flutter Idler
Error Detection
The process of discovery that sonic information bits have been lost in digital audio.
Tuesday, March 24, 2020
BNO Acoustics BP-40: Volume Unit
A unit that is designed to measure perceived loudness changes in audio. The unit is basically the decibel change of the average level as read by a VU Meter. The movement of the VU Meter is designed to approximately match the ear's response to changes in level. Abbreviated VU
BNO Acoustics Speakers: Auxiliary Input or Return
A route back into the sound desk for a signal sent to a piece of outboard equipment via an auxiliary send.
Guitar Controller
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.
Wavelength
1) The length of one cycle (in feet, inches, etc.)
2) The distance measured in the direction of progression of a wave, from any given point characterized by the same phase.
Tube
A shortening of the term Vacuum Tube (an amplifying device that has elements to send and control current through a vacuum in a glass or metal tube).
Overload Indicator
An LED on a channel of a console that shows that the input or other part of the circuit is receiving an overload.
BNO Acoustics XV-16: Wave Velocity
The time it takes for one point of the waveform to travel a certain distance.
BNO Acoustics Speakers: Auxiliary Input or Return
A route back into the sound desk for a signal sent to a piece of outboard equipment via an auxiliary send.
Guitar Controller
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.
Wavelength
1) The length of one cycle (in feet, inches, etc.)
2) The distance measured in the direction of progression of a wave, from any given point characterized by the same phase.
Tube
A shortening of the term Vacuum Tube (an amplifying device that has elements to send and control current through a vacuum in a glass or metal tube).
Overload Indicator
An LED on a channel of a console that shows that the input or other part of the circuit is receiving an overload.
BNO Acoustics XV-16: Wave Velocity
The time it takes for one point of the waveform to travel a certain distance.
Monday, March 23, 2020
BNO Acoustics HD-70: Set Up
1) To place microphones, instruments and the controls on recorders/consoles, etc. for recording.
2) The way in which the microphones, instruments and the controls on recorders/consoles, etc. are positioned for recording.
Power Amplifier
A device that takes a line level signal and amplifies it to be able to drive a speaker.
In-Line Console
A console with modules that have controls for all console sections in one long strip.
NW/m
An abbreviation of Nano-Webers Per Meter (the standard unit in measuring the amount of magnetic energy).
Shield
1) The outer conductive wrapping around an inner wire or inner wires in a cable.
2) To protect the inner wire or inner wires in a cable from pick up of energy given off by such things as florescent lights.
VCA Group
Several VCA faders that are fed control voltages from a group master slide.
Sound Level
A shortening of the term Sound Pressure Level (a measure of the sound pressure created by a sound).
2) The way in which the microphones, instruments and the controls on recorders/consoles, etc. are positioned for recording.
Power Amplifier
A device that takes a line level signal and amplifies it to be able to drive a speaker.
In-Line Console
A console with modules that have controls for all console sections in one long strip.
NW/m
An abbreviation of Nano-Webers Per Meter (the standard unit in measuring the amount of magnetic energy).
Shield
1) The outer conductive wrapping around an inner wire or inner wires in a cable.
2) To protect the inner wire or inner wires in a cable from pick up of energy given off by such things as florescent lights.
VCA Group
Several VCA faders that are fed control voltages from a group master slide.
Sound Level
A shortening of the term Sound Pressure Level (a measure of the sound pressure created by a sound).
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