Terminology analysis of loudspeaker effect device

Terminology analysis of loudspeaker effect device

As a sound engineer, you should know the terminology of speaker effect. The following is an analysis of the terms of speaker effect for everyone, hoping to help everyone.

Cable: Connection and jumper are conventional translations, which refer to connecting one output to another input, but cables are divided into very fine varieties according to different signals.

Musical instrument cable: Musical instrument cable, in the field of electroacoustic, refers to the signal cable with high impedance and low current, which must have a perfect shielding structure and a solid shell. This kind of cable is not commonly used because it is too demanding and expensive to quote.

Signal line: signal line, usually used to connect guitar, usually used for low-resistance signal transmission.

Speaker cable; Speaker cable, a kind of wire that is often neglected in guitar field, is a speaker cable that transmits signals between power amplifier signals and speakers. The most commonly used local line is the connecting line between the speaker head and the box, which cannot be shielded (otherwise it will burn out the power amplifier). It is a wire that transmits large current, and the quality is definitely good!

Power cord: Power cord is generally burned by people who play hifi audio, and it is generally not replaced in the guitar field.

Effect: The direct translation is the meaning of function, and the meaning of this word is very vague in China. Broadly speaking, as long as it is not a piano and a speaker, other devices are called actuators, but in foreign definitions, it is divided into very fine points, which will be mentioned below. In the standardized musical instrument world, the word function usually refers to the spatial functions such as chorus, drift, delay and reverberation, but does not include distortion, balance and contraction.

Preset: the word preset is simply replaced by timbre, and almost no one in China says it is timbre, so the word timbre mentioned before has many misunderstandings in the field of musical instruments. The so-called preset means that all your related parameters are adjusted and fixed, and all system parameters are called preset. In composition actuator, this word refers to a file stored in a certain location after all parameters are adjusted, which is convenient for real-time call.

Pedal switch: Pedal switch, sometimes translated as pedal, controls a parameter or preset switch or a switch called. For example, the library selection in the composition actuator is completed by the foot switch.

Pedal: Pedal, really called pedal, is called pedal as long as it can be stepped back and forth, including volume pedal, frog pedal, expression pedal and so on. In advanced composition, almost all parameters can be controlled by pedals, so it is necessary to set the minimum and maximum values of the parameters to be controlled. Variable resistance operation is required, but because the variable resistance will be tightened, it is necessary to reset the minimum and maximum values of the pedal after a while.

Bank: the library. In some senior actors, presets are stored by libraries, that is, all actors can store several libraries, and one library can store several timbres. Conveniently, when changing libraries, the timbre played still adheres to the previous preset, and only when switching to other libraries and selecting the preset will the timbre played change in the past. In other words, you can arbitrarily choose each preset of the actors as the next switching timbre when playing.

Whoa, whoa: Frog sounds, raising and lowering the volume of specific frequency bands to create an effect similar to children crying. It is usually used with pedals.

Levl: Level, misunderstood by many people as volume, can be understood as volume in an amplifier circuit, while in action, Level is the expression of the degree of action application and the mixing degree of initial signal and action signal, so it is also expressed by mix. The level is the increase or decrease of the processed signal.

Gain: gain and distortion. In a lossless circuit, gain means the operation of increasing or decreasing the initial signal input at this level. In a distortion circuit, the principle is the same as mentioned above, but in terms of expression, it is distortion, because the original distortion circuit is at least two-stage amplification, and the amount of distortion depends on the amplification of the previous stage, so the amount of gain is also the amount of distortion! Gain is the increase or decrease of the initial signal (relative to the level) drive: literally, it means drive, but it is similar to distortion in an overload circuit.

Overload: overload, slight distortion, warm and smooth.

Distortion: Distortion, especially strong distortion, sharpness, distortion fluctuation.

Crunch: timbre is usually between overload and distortion, especially in British timbre.

Timbre: timbre, in distortion circuit, refers to the lightness and darkness of timbre, soft/hard. It usually occurs under overload conditions.

Channel: channel, usually refers to the speaker, but now many actors are imitating the speaker, so the word can also be seen in actors. A channel refers to a set of combinations of processing signals (usually including gain equalizer levels). In the actor, the channel is a distorted or silent imitation. Usually, channels are used to adjust important timbres, and then they are processed for other purposes. In a sound box, it refers to a set of preprocessing, or unvoiced sound, or distortion.

Compressor: tightening, the most common use of tightening in guitar is to restrain strength, but this is only one aspect of tightening. In the field of recording, tightening has many other uses. I don't know much about it, but I advocate using austerity with caution. If you don't know what tightening is, or what timbre you want, you'd better not open it. It is better for unvoiced sounds, and the tightened quality is positive for timbre.

Eq: Full name equalizer, Chinese equalizer, which is called equalizer in Taiwan Province Province. Equalization is also a university knowledge, with at least two levels and at most dozens of levels. Guitar usually has three or four levels of equalization, and single-chip equalization is usually 6 to 10. The more balanced, the harder it is to adjust. If the balance is not adjusted well, it will only worsen the sound quality, which is much more likely than adjusting the pitch. Equalization is to flatten a specific frequency band. According to the size of Q value, it also affects the surrounding frequencies, so random tuning equalization will form a burr feeling of timbre, which is also the most difficult and key part of the tuner. Professional actors will provide as many parameters as possible to control, and the cheaper they are, the closer they are to the fool-like operation, that is, to prevent the sound quality from deteriorating due to improper equalization operation. Multi-level equalization used in other stage acoustics is not to adjust timbre, but to prevent the response of a certain frequency band and the standing wave of sound, perhaps to compensate the acoustic environment of the place.

Boost: encourage, people who use electron tube speakers are very concerned about the choice of this exciter. The exciter is to make up for the lack of tube distortion, repair the frequency band and make the timbre fuller. At first, I wanted to add an enlarged grade in front of the electron tube to make up for the lack of tube distortion. Now it is basically used to modify the timbre, not to add distortion. The current tube distortion technique can achieve a great degree of distortion.

Single pedal: refers to the integral actuator.

Pedal turntable: same as above, sometimes it refers to overload and distortion of single-chip effector. Traditional composition effectors are basically composed of distortion sources, then analog balance, compression, and then action. However, modern effectors are not just the simple process mentioned above, but completely imitate a professional vocal process. The time when this effector first appeared is called speaker imitator. Nowadays, the line between an actor and a speaker imitator is increasingly blurred. The best example is that traditional component actors usually describe distortion as bluse, Distortion, metal, fuzz Metal and fuzz, while modern component actors or speaker imitators are used to naming distortion types by historical classic equipment titles. For example, unvoiced sound is not called clean, but named after devices commonly used in unvoiced sound, such as black face, vox or ac30. There is also a kind of metal distortion that is not called metal, but is defined by mesa, corrector, 5 150, etc. So to play with these actuators, you must know what personality or tendency these historically representative devices are. The following are some explanations of the terms that constitute the actuator:

Modal: Form, a word that represents multiple meanings in today's composition executors, can be output form, input form, single block form or preset form. The key is to see where it is used.

Power amplifier channel: this is the imitation of the sound box, and it is the imitation of the front channel of the power amplifier, which usually includes gain, eq gain, EQ and LEVEL. This is also the direction in which unvoiced sounds are still distorted, and there are some keys to timbre.

Data wheel: Modern and advanced actuators basically have data wheels, that is, when you adjust a certain detailed parameter, use the data wheels to set a fixed point (increase or decrease).

AMP SAVE: This is not available on all actuators, but refers to the storage of the sound box, that is, the storage of the simulated timbre of a sound box that you set separately, rather than the storage of all timbres. Storage: storage, that is, preset storage, that is, the storage of an overall parameter that you have adjusted.

Pattern: change, usually the choice of type, usually used for drum rhythm type.

TEMPO: speed, usually refers to the speed of drum machine, which may be the time delay.

TAP: usually refers to a device that controls the delay time in real time, that is, the delay time is grasped by hands or feet. The beat is defined according to the time when you trigger this switch.

Expression pedal, this pedal can be wow sound or volume. Usually, all adjustable timbre parameters in advanced composition can be controlled by pedals, and several parameters can be set to change together.

Balance: Balance input or output. Balanced signal is the most standard and best signal transmission mode. Single transmission mode of front, middle and ground wires is selected, which is not commonly used in musical instruments, but it is the most standard signal input and output specification in PA system, that is, stage sound. Because large-scale composer actuators now basically need to be connected to the mixer for recording and performance, balanced input or output is constantly added to the actuators. XLR is usually used.

Unbalanced: Compared with the above balanced signals, unbalanced signals are common signal protocols in guitars and musical instruments. Single-channel imbalance only needs two signal ports, a front end and a combination of neutral wire and ground wire. Dual-channel imbalance requires three signal ports, each channel occupies a front port, and neutral wire and ground wire combine four signals. Note: Balanced dual channels require six ports.

Stereo: Stereo

True bypass: Same as above, but this kind of bypass uses true connection line output without any circuit, so the input signal is perfectly maintained, which is the essential feature of advanced single block.

Handmade: the meaning of craft manufacturing, but some manufacturers confuse the audience and write the craft as craft manufacturing.

Manual connection: real process manufacturing. In a single actuator, this means real manual manufacturing, such as process welding and process crossing. And the meaning is far more than that. Process manufacturing refers to a series of humanized manufacturing processes, such as manual component selection and manual testing. , are basically works of art that have passed the human ear test, not industrial products, so it also means sky-high prices! This word is the same among speakers. As far as the speaker is concerned:

Pre-stage: the pre-stage in a broad sense, which can be called pre-stage before entering the post-stage, or it can be a part of the pre-stage including the pickup. In a narrow sense, the weak signals input by the guitar on the power amplifier can be amplified by circuit processing-some of them are called the front stage before entering the back stage. Pre-classification: electron tube, solid state and digital are classified according to different skills. Have you seen SLAYEST's? Brief introduction of distortion types? Power amplifier; Later period, or power expansion. It is called the back stage to expand the front stage signal to meet the expansion level of the propulsion horn. The classification of the rear stage is the same as that of the upper stage, but the rear stage of the electron tube can be divided into class A and class A/B, and there are many different tube configurations according to preferences. This too professional physical problem is also to be explained by Slaye EST.

Cabinet: a box. A box with a speaker is called a box.

Speaker: A speaker or horn, a device that converts electrical signals into sound waves. C

COMBO integrates speakers, front stage, back stage, and devices with speakers in one device.

Full stack: refers to two complete sets of equipment with 4 12 boxes and one head.

Half stack: a 4 12 box device.

Head: front and rear merging machine.

Amplifier: amplifier, the same as above, perhaps the general term above.

RMS: rated power refers to the power of the amplifier when it works for a long time.

Peak: peak power, the power that the power amplifier promises to expand instantly.

FX loop: action loop, channel between foreground and background. It can be used to connect devices after the front stage and before the back stage. In the case of using the former stage distortion, it can also be used as the direct input of the latter stage.

Impedance: impedance, that is, resistance. On the electron tube amplifier, the impedance of the connecting box must not be lower than the calibrated impedance of the amplifier, so the electron tube amplifier can't be started without the connecting box, which is in danger of burning.

Electron tube, British term electron tube: ditto, American term.

Bias: grid voltage regulation, one of the working principles of electron tubes, please ask Professor He to explain.

Spoon: refers to the attenuation equalization of alto, also known as V-shaped equalization.

Brightness: Brightness, which usually appears in today's unvoiced channel, is a button, which refers to the brightness added to this channel.

Presence: Presence can usually be understood as a balanced conditioning higher than treble, which is an interpretation of sound distance.

Stand by: Stand by. In the electron tube amplifier, the power switch is usually turned on first, and then the standby switch is turned on after the electron tube is preheated. Before the electron tube enters the working voltage, if the external input is too strong, it is simply damaged, so standby is a protective measure. When turning off the speaker, turn off the standby first, and then turn off the power.