An older term for the term Equipment Rack, a cabinet with rails (or free standing rails) that have holes to accept screws at standard spaces and used to house outboard gear.
Mixer
A desk comprising a number of input channels where each sound source is provided with its own control channel through which sound signals are routed into two or more outputs. Many mixing desks can also change the quality of the sound (see Equalization). A Powered Mixer has an amplifier built into it. Sound sources of varying levels are accepted which can be amplified if necessary. (See Line Level, Gain).
BNO Acoustics 6k-52: Lower Toms
The large toms (up to approximately 20' diameter heads) mounted on metal feet to sit on the floor.
BNO Speakers: Modulation Noise
Noise that is present only when the audio signal is present.
BNO Acoustics GT-60: Tempo Mapping
Programming a sequencer to follow the tempo variations of a recorded performance.
VCA
Abbreviation for Voltage Controlled Amplifier (an amplifier that will change gain according to the level of control voltage sent to it).
Electrons
Negatively charged particles, which revolve around the centre of atoms. The movement of such electrons down a conductor causes electrical current.
Saturday, December 28, 2019
Friday, December 27, 2019
BNO Acoustics SQ-9: Room Tone
The background noise in a room without people speaking or music playing.
Console
A set of controls and their housing, which control all signals necessary for recording and mixing.
Ruggedness
Ability to withstand a lot of use, rough use or abuse.
BNO Acoustics Speakers: Polarizing Voltage
The voltage applied to the plates of the variable capacitor in the condenser microphone capsule.
Modular Digital Multitrack
A multitrack digital recorder with (usually) 8 tracks than can be run in synchronization with other machines (of the same type) to attain more tracks. ADAT brand recorders are an example.
Puck
Any circular piece of metal, fiber, rubber, etc., which drives something from a rotating power source.
Negative
The opposite of positive.
Console
A set of controls and their housing, which control all signals necessary for recording and mixing.
Ruggedness
Ability to withstand a lot of use, rough use or abuse.
BNO Acoustics Speakers: Polarizing Voltage
The voltage applied to the plates of the variable capacitor in the condenser microphone capsule.
Modular Digital Multitrack
A multitrack digital recorder with (usually) 8 tracks than can be run in synchronization with other machines (of the same type) to attain more tracks. ADAT brand recorders are an example.
Puck
Any circular piece of metal, fiber, rubber, etc., which drives something from a rotating power source.
Negative
The opposite of positive.
Thursday, December 26, 2019
BNO Acoustics TR-12: Mic Gain Control
A level control on a microphone preamplifier that sets gain and is used to prevent overload of that preamplifier.
Peak Response
1) A term with the same meaning as Peak
2) Raising or lowering of the amplitude of signals at the center frequency more than signals at any other frequency.
Field
1) In video, one half of a frame.
2) In computer-controlled devices a window display with functions and choices that the operator can make
VCA
Abbreviation for Voltage Controlled Amplifier (an amplifier that will change gain according to the level of control voltage sent to it).
BNO Acoustics XR-90: Reel Lock
The device that secures the reel to the turntable in a transport.
Residual Magnetization
The amount of magnetism left in a magnetic material after the magnetizing force is removed.
MIDI Interface
A device that converts a MIDI signal into the digital format of a computer so that the computer can store and use the MIDI signal.
Peak Response
1) A term with the same meaning as Peak
2) Raising or lowering of the amplitude of signals at the center frequency more than signals at any other frequency.
Field
1) In video, one half of a frame.
2) In computer-controlled devices a window display with functions and choices that the operator can make
VCA
Abbreviation for Voltage Controlled Amplifier (an amplifier that will change gain according to the level of control voltage sent to it).
BNO Acoustics XR-90: Reel Lock
The device that secures the reel to the turntable in a transport.
Residual Magnetization
The amount of magnetism left in a magnetic material after the magnetizing force is removed.
MIDI Interface
A device that converts a MIDI signal into the digital format of a computer so that the computer can store and use the MIDI signal.
Wednesday, December 25, 2019
BNO Acoustics QS-4: Layering
The recording (or playing) of a musical part with of several similar sound patches playing simultaneous.
BNO Speakers: Sound Check
A thorough test of the sound system before a performance. This will include checking each speaker cabinet individually, and each playback device. In the case of a live concert, this is the session when each instrument is played in turn for the sound engineer to check and fine-tune the sound.
THD
An abbreviation for Total Harmonic Distortion.
BNO Acoustics GT-60: 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.
BNO Acoustics BP-40: Safe/Ready Selector
A two or more position switch, which is usually included on a tape machine and which, determines if each track will be able to go into record.
Offset (Offset Time)
1) The SMPTE time that will trigger a MIDI sequencer to begin.
2) The amount of position difference needed to get two reels to play the music in time.
BNO Acoustics SQ-9: 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)
BNO Speakers: Sound Check
A thorough test of the sound system before a performance. This will include checking each speaker cabinet individually, and each playback device. In the case of a live concert, this is the session when each instrument is played in turn for the sound engineer to check and fine-tune the sound.
THD
An abbreviation for Total Harmonic Distortion.
BNO Acoustics GT-60: 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.
BNO Acoustics BP-40: Safe/Ready Selector
A two or more position switch, which is usually included on a tape machine and which, determines if each track will be able to go into record.
Offset (Offset Time)
1) The SMPTE time that will trigger a MIDI sequencer to begin.
2) The amount of position difference needed to get two reels to play the music in time.
BNO Acoustics SQ-9: 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)
Tuesday, December 24, 2019
BNO Acoustics GK-3: Multi/Multi Jack
Short for Multiple Jacks or Multiple Jack and meaning: 1) a jack at the output of a device which is not normalled so that plugging into the jack will allow the output to be sent to a different input and the output will also feed the normal place it feeds. 2) A set of jacks (or one of a set of jacks) with each terminal wired to a corresponding terminal of another or other jacks.
Reel
1) The hub and flanges that hold tape and which tape can be spooled onto or off of.
2) The amount of tape that fits on a Reel (definition 1).
BNO Acoustics SQ-9: Tach
Abbreviation of the term Tachometer (a device that puts out pulses as the tape moves in a tape deck).
BNO Acoustics LK-61: Voltage Controlled Amplifier
An amplifier that will change gain according to the level of control voltage sent to it.
BNO Acoustics XV-16: Key
The control of a dynamics processing device by an external audio signal.
Ribbon Mic
Delicate mic not suitable for high sound pressure levels. Consists of a corrugated conductive foil strip suspended between opposing magnetic poles which is excited by pressure differences between the front and rear of the microphone and induces a current.
Narrow Band Noise
Noise (random energy) over a limited frequency range.
Reel
1) The hub and flanges that hold tape and which tape can be spooled onto or off of.
2) The amount of tape that fits on a Reel (definition 1).
BNO Acoustics SQ-9: Tach
Abbreviation of the term Tachometer (a device that puts out pulses as the tape moves in a tape deck).
BNO Acoustics LK-61: Voltage Controlled Amplifier
An amplifier that will change gain according to the level of control voltage sent to it.
BNO Acoustics XV-16: Key
The control of a dynamics processing device by an external audio signal.
Ribbon Mic
Delicate mic not suitable for high sound pressure levels. Consists of a corrugated conductive foil strip suspended between opposing magnetic poles which is excited by pressure differences between the front and rear of the microphone and induces a current.
Narrow Band Noise
Noise (random energy) over a limited frequency range.
Monday, December 23, 2019
BNO Acoustics YM-44: Phase Distortion
A change in the sound because of a phase shift in the signal.
Photoelectric Cell
A device that generates a small current when it receives light.
Sawtooth Waveform
A waveform that jumps from a zero value to a peak value and then gradually diminishes to a zero value for each cycle.
BNO Acoustics 6k-52: Far Field
The area from 3 feet away from the sound source up to the critical distance.
BNO Acoustics QS-4: Monitor Mixer
1) A console or other device that blends audio signals into composite signals and has a small number of outputs.
2) The section of the console which is used to do a rough mix so the engineer can hear what is being recorded without effecting the levels being fed to the multitrack recorder.
3) The audio technician who mixes the signals sent to the stage monitor speakers.
Sound Level Meter
A device that measures the sound pressure levels.
BNO Acoustics TR-12: Peak-to-Peak Value
The difference in amplitude between positive and negative peaks. Equal to twice the peak value for a sine wave.
Photoelectric Cell
A device that generates a small current when it receives light.
Sawtooth Waveform
A waveform that jumps from a zero value to a peak value and then gradually diminishes to a zero value for each cycle.
BNO Acoustics 6k-52: Far Field
The area from 3 feet away from the sound source up to the critical distance.
BNO Acoustics QS-4: Monitor Mixer
1) A console or other device that blends audio signals into composite signals and has a small number of outputs.
2) The section of the console which is used to do a rough mix so the engineer can hear what is being recorded without effecting the levels being fed to the multitrack recorder.
3) The audio technician who mixes the signals sent to the stage monitor speakers.
Sound Level Meter
A device that measures the sound pressure levels.
BNO Acoustics TR-12: Peak-to-Peak Value
The difference in amplitude between positive and negative peaks. Equal to twice the peak value for a sine wave.
Sunday, December 22, 2019
BNO Speakers: Low-Pass Filter
A device that rejects signal above a certain frequency and passes signals that are lower in frequency.
Loudness Control
A knob that changes the level and adjusts the frequency response of the circuit controlling the speakers to compensate for the inability of the ear to hear low frequencies and extreme high frequencies at low volumes.
BNO Acoustics BP-40: Noise Filter
A filter used which passes only signals with the intended audio frequencies thus eliminating noise signals at other frequencies.
BNO Acoustics TR-12: Throw
In speakers and in microphones, the amount of movement that the diaphragm can make (without restriction) to produce or pickup the sound wave.
BNO Acoustics YM-44: Normalize
1) To provide normal switches on a jack.
2) To reset a synthesizer, sound module or sample playback unit to the original settings that were present from the factory.
3) To adjust the level of a selection so that the highest peak is at the maximum recording level of the medium.
4) In computers, to format a floppy disc.
BNO Acoustics XR-90: Keyboard
1) Any musical instrument controlled by pressing a key.
2) The part of the computer that has the keys.
Diaphragm
A thin flexible membrane or cone that vibrates in response to electrical signals to produce sound waves. Distortion is usually referred to in terms of total harmonic distortion (THD) which is the percentage of unwanted harmonics of the drive signal present with the wanted signal. Generally used to mean any unwanted change introduced by the device under question.
Loudness Control
A knob that changes the level and adjusts the frequency response of the circuit controlling the speakers to compensate for the inability of the ear to hear low frequencies and extreme high frequencies at low volumes.
BNO Acoustics BP-40: Noise Filter
A filter used which passes only signals with the intended audio frequencies thus eliminating noise signals at other frequencies.
BNO Acoustics TR-12: Throw
In speakers and in microphones, the amount of movement that the diaphragm can make (without restriction) to produce or pickup the sound wave.
BNO Acoustics YM-44: Normalize
1) To provide normal switches on a jack.
2) To reset a synthesizer, sound module or sample playback unit to the original settings that were present from the factory.
3) To adjust the level of a selection so that the highest peak is at the maximum recording level of the medium.
4) In computers, to format a floppy disc.
BNO Acoustics XR-90: Keyboard
1) Any musical instrument controlled by pressing a key.
2) The part of the computer that has the keys.
Diaphragm
A thin flexible membrane or cone that vibrates in response to electrical signals to produce sound waves. Distortion is usually referred to in terms of total harmonic distortion (THD) which is the percentage of unwanted harmonics of the drive signal present with the wanted signal. Generally used to mean any unwanted change introduced by the device under question.
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