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Comparison AKG P5 vs Rode NT1-A

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Microphonevocalstudio
Operating principledynamiccondenser
Specs
Microphone directivity
unidirectional
unidirectional
Directional pattern
 
supercardioid
cardioid
 
Rated resistance580 Ohm100 Ohm
Frequency range40 – 20000 Hz20 – 20000 Hz
Sensitivity-52 dB-32 dB
Sound pressure144 dB137 dB
Functions and connectors
Connection
XLR
XLR
General
Power sourcephantom
Materialmetal
Size190x51x51 mm190x50x50 mm
Weight320 g326 g
In box
rack holder
case
 
 
Color
Added to E-Catalogmarch 2015january 2015

Microphone

Vocal(for karaoke). In accordance with the name, such models are intended primarily for the transmission of the human voice — during singing, artistic reading, etc., when not only speech intelligibility is important, but also shades of intonation. It is these microphones that can be seen on stage during concerts and other similar events, in karaoke equipment, etc. This category also includes models that can also be used as instrumental ones (see below).

Buttonhole. The name of this type of microphones is due to the traditional method of fastening — on the collar, where the buttonhole is usually located; they have miniature size and the presence of a clip for holding on clothes. Such devices are known primarily as television transmission equipment — they are used by participants in television programs so that they can speak without using their hands with larger microphones. And some devices of this type are actually a “headset blank”, which turns into a full-fledged headset when headphones are connected.

For a computer. Microphones designed for use with full size PCs. Such microphones usually have a capsule on a long stem, sometimes flexible (see below) and a stand for placement on a table surface. Their main purpose is voice communication using a computer, where the most important thing is not so much the accuracy of the transfer of details, but...the data transfer rate and their small volumes — therefore, the sound quality, usually, is relatively low.

For a laptop. Like the PC microphones described above, "laptop" models are designed mainly for voice communication and have rather modest characteristics. Their key difference is the focus on use with portable devices, which is expressed primarily in compact size. In addition, for many of these microphones, the connection port also acts as a mount for placement on a laptop case.

Instrumental. Microphones designed to mimic musical instruments such as saxophones, acoustic guitars (not equipped with pickups), percussion kits, etc. Note that despite the outward resemblance of some models to the vocal ones described above, “purely instrumental” microphones for voice processing are poorly suited, it is not recommended to use them for this purpose.

Studio. Microphones designed for use in recording studios. Usually, they are designed for recording vocals. Differ in high quality of a sound transmission and the corresponding cost.

Head. Microphones designed to be worn on the head — like headsets (only in this case there is no earpiece in the design). They are miniature in size and are similar in application to lavaliers (see above), but are located closer to the mouth and do not depend on the speaker's clothing. This allows the use of such models in specific situations where a lavalier microphone is unsuitable — for example, for filming a video with a strong level of extraneous noise.

For conferences. Microphones intended for use in conference rooms, huddle rooms, grandstands, and similar locations. The design of such models can be different — a capsule on a flexible leg (see below), a disc placed directly on the table, etc. However, anyway, this variety is optimized for speech transmission and is designed for the maximum convenience of the speaker — so that the user is not distracted by choosing the optimal position relative to the microphone and the distance to it.

For a video camera. Microphones designed, as the name suggests, for use with video cameras, primarily professional ones. Note that technically, any microphone can be connected to the input of the video camera, matching the connectors and main characteristics; however, this category only includes models that are designed to mount directly into a special mount on the camera body.

For a voice recorder. A specific type of microphone designed exclusively for use with voice recorders. Such equipment, usually, is equipped with its own built-in microphones, but their capabilities may not be enough in some cases; and among high-end professional voice recorders there are devices that do not have a microphone at all. External microphones are usually connected via a 3.5 mm mini-Jack interface or via a proprietary connector (see below), while one of their distinguishing features is the absence of a wire: the plug is mounted directly on the microphone body and plays the role of not only a connector, but also a mount. Of course, miniature sizes are also characteristic of such devices.

For phone/tablet. This category includes specialized microphones, originally positioned as accessories for smartphones or tablets. Usually, they are similar to the voice recorders described above in the sense that they are attached directly to the body of the device without using additional wires. Their main specificity, compared to the same models for voice recorders, is the connection method — usually a universal connector is used for this, like 30pin / Lightning, microUSB or a proprietary interface (see below for more details).

For video production. Microphones intended for use in video recording. In fact, this variety includes two subgroups, each with its own specialization. The first is microphones, which can be conditionally called "reporter's". Usually, these include dynamic (see "Type") models with all-round directivity (see below) and good sensitivity. These features allow you to "hear" not only the voice of the reporter, but also the sound background around him; in addition, you do not need to accurately maintain the position of the microphone relative to the face, which is especially useful when interviewing other people. Also, "reporter" models have durable cases and are generally well protected from various troubles (although they are not necessarily completely moisture and shock resistant). The second variety of models for video production is “sound operator”: such microphones can often be seen on film sets mounted on long rods. They, in turn, are usually made unidirectional or bidirectional (for maximum filtering of extraneous sounds), and most often they are condenser types and provide a fairly high quality and reliability of sound transmission.

Suspended. Microphones designed to be suspended, such as from the ceiling. Such models are intended mainly for choir singing, theatrical performances and other situations in which other types of microphones (standing on a stand, held in the hand or even clinging to the head) are not very convenient.

Measuring. Measuring microphones are designed to calibrate sound installations. With their help, you can quickly and accurately adjust the loudness for a musical instrument, loudspeaker, sound recording equipment, etc. The key features of measuring microphones are a wide frequency range (20 – 40,000 Hz) and high frequency response stability. The measuring microphone measures the noise level and detects sound anomalies. Properly tuned, with the help of a measuring microphone, the sound installation will fully correspond to the acoustic features of a particular room.

Operating principle

— Dynamic. "Conventional", or coil, dynamic microphones use a system of diaphragm (membrane) and coil, which is placed in a magnetic field. From sound vibrations, the membrane, and with it the coil, set in motion, and an electrical signal is generated in the coil. Such models are relatively inexpensive, durable and reliable, besides, they cope well even with very loud and harsh sounds; they are also smaller and lighter than another type of dynamic microphone, the ribbon microphone (see below). Their main disadvantage is poor efficiency at high frequencies.

Dynamic (tape). A variation of the dynamic microphones described above, in which the membrane is connected not to a coil, but to a thin (a few microns) metal tape, hence the name. Historically, this is the first type of microphone with a dynamic principle of operation, however, due to a number of shortcomings, it gradually lost its wide popularity, giving way to coil options. Such shortcomings are, first of all, large dimensions and large mass, complexity and high cost in production, as well as a very low output impedance, which complicates the work with amplifiers. At the same time, tape models have extremely high sound fidelity over the entire frequency range, which allows them to be used in recording studios, at high-class concerts, etc. Most modern models of this type are professional models, in particular, studio models (see "Purpose")....r>
— Condenser. The name of this type is due to the fact that the microphone is actually a capacitor, in which the sensitive membrane (usually made of a metallized polymer) plays the role of one of the plates. Due to the vibration of the membrane (under the action of sound vibrations), the distance between the plates changes and, accordingly, the capacitance of the capacitor — these capacitance fluctuations provide an electrical signal. Condenser microphones have a uniform sound transmission over the entire frequency range, with a minimum of distortion, due to which this technology has found wide application in professional audio equipment. Note that for the operation of such a device, additional power is required — the so-called "phantom" (standard voltage — 48 V). However, this cannot be called an unequivocal disadvantage, because. amplifiers, receivers and other high-end appliances are often made with this requirement in mind. But of the obvious shortcomings can be called a high price, sensitivity to shock and strict requirements for temperature and humidity; the latter makes condenser microphones less suitable for outdoor use.

Condenser (tube). A specific variation of the condenser microphones described above. They use the same sound extraction principle (with all the advantages and disadvantages), however, the amplifying element in such models, in accordance with the name, is built on vacuum tubes. Technically, such an amplifier introduces more distortion into the signal than a transistor one, but these distortions give the sound a characteristic colour that is pleasant to many listeners. Simply put, the same notorious “warm tube sound” is obtained; At the same time, achieving such an effect using a microphone is cheaper than using a tube amplifier, and for a number of technical reasons, this option often turns out to be optimal. Almost all tube microphones have a studio purpose (see above). Their main drawback is the high price (several times more than that of "ordinary" capacitor counterparts). In addition, such models have their own nutritional characteristics; to supply energy, a special adapter is usually supplied in the kit, which is also responsible for controlling additional functions such as changing the beam pattern.

— Electret. By design, such microphones are similar to the condenser microphones described above, however, their design includes a plate of the so-called electret — substances with special electrical properties. This provides a number of advantages: electret microphones can be used outdoors without much difficulty, they can be made more compact, and such models are cheaper to manufacture; at the same time, the sound transmission quality can be quite comparable with condenser ones. As a result, this technology is found in a wide variety of models — from miniature lapel and simple computer to studio (see "Purpose"). Also note that electret microphones also require external power, but not always phantom 48 V — for some varieties, a small amount of power is enough, which can be provided by a compact battery or powered by a 3.5 mm mini-Jack cable.

Directional pattern

The polar pattern of a unidirectional microphone (see above). There are models with DN switching.

By itself, such a diagram is a graph of sensitivity versus direction, built in the so-called polar coordinate system. For unidirectional models, there are three main options for the shape of the line on such a chart:

Cardioid. A chart shaped like an inverted heart symbol (hence the name). Microphones with these characteristics cover a fairly large area in front, which makes it difficult to filter out extraneous sound sources that are close to the main source. At the same time, they are completely insensitive to sound coming from the rear.

Supercardioid. These mics have a narrower front coverage than "classic" cardioid mics, making it easier to pick up directional sound. The downside of this is some (albeit rather low) sensitivity to sound coming directly from behind.

Hypercardioid. The hypercardioid pattern further narrows the microphone's sensitivity zone in the front (compared to the supercardioid pattern), but widens this zone in the back.

Rated resistance

Microphone AC impedance; this parameter is also called "impedance". This is one of the most important characteristics that determines compatibility with the amplifier or other device to which the microphone is connected: if the impedance is not optimal, there may be a loss in signal power. It has its own characteristics, depending on the purpose of a particular model (see above). So, for microphones used with computers, laptops, voice recorders and phones / tablets, the impedance may not be indicated at all — the characteristics of such models are selected in such a way as to ensure normal compatibility with the corresponding devices. But in professional audio equipment, special rules are used for selection; more details can be found in special sources.

Frequency range

The range of audio frequencies normally perceived and processed by a microphone.

The wider this range — the fuller the signal, the less likely that too high or low frequencies will be missed due to the imperfection of the microphone. However, in this case, it is worth considering some nuances. First of all: a wide frequency range in itself does not guarantee high sound quality — a lot also depends on the type of microphone (see above) and its frequency response, not to mention the quality of other components of the audio system. In addition, a large width is also not always really necessary. For example, for normal transmission of human speech, a range of 500 Hz — 2 kHz is considered sufficient, which is much narrower than the general range perceived by the human ear. This general range, in turn, averages from 16 Hz to 22 kHz, and also narrows with age. Do not forget about the features of the equipment to which the microphone is connected: it is hardly worth specifically looking for a model with an extensive range, if, for example, the amplifier to which it is planned to be connected severely “cuts off” the frequencies from above and/or below.

Sensitivity

Sensitivity describes the signal strength at the output of a microphone when it processes a sound of a certain volume. In this case, sensitivity means the ratio of the output voltage to the sound pressure on the membrane, expressed in decibels. The higher this number, the higher the sensitivity. Note that, as a rule, values in decibels are negative, so we can say this: the closer the number is to zero, the more sensitive the microphone. For example, a -38 dB model outperforms a -54 dB model in this parameter.

It should be borne in mind that high sensitivity in itself does not mean high sound quality - it only allows the device to “hear” a weaker sound. Conversely, low sensitivity is not an unequivocal sign of a bad microphone. The choice for this parameter depends on the specifics of the application: a sensitive device is useful for working with low sounds and in cases where it is necessary to capture the smallest nuances of what is happening, and a “weak” microphone will be convenient at high sound volume or, if necessary, filter out extraneous weak noises. There are models with sensitivity adjustment(and for models with a headphone output , headphone volume control may be provided).

Sound pressure

The maximum sound pressure perceived by the microphone, at which the harmonic oscillation coefficient does not exceed 0.5% — in other words, the highest sound volume at which no noticeable interference occurs.

The higher this indicator, the better the microphone is suitable for working with loud sound. Here it is worth considering that the decibel is a non-linear quantity; in other words, an increase in volume from 10 dB to 20 dB or from 20 to 40 dB does not mean a 2-fold increase in volume. Therefore, when assessing, it is most convenient to refer to comparative tables of noise levels. Here are some examples: a level of 100 dB roughly corresponds to a motorcycle engine or subway car noise; 110 dB — helicopter; 120 dB — the work of a demolition hammer; 130 dB, comparable to the sound of a jet aircraft taking off, is considered a pain threshold for a person. At the same time, many high-end microphones are able to work normally at a sound pressure of 140 – 150 dB — and this is a noise level that can cause physical damage to a person.

Power source

The type of power used by the microphone during operation.

- Phantom. 48 V power supply required for operation of condenser microphones, as well as some types of electret microphones(see “Type”). With the standard connection, electricity is supplied through the same cable that connects the microphone to the receiving device; Accordingly, for normal operation of such models, amplifiers, receivers or other equipment with a microphone input that has phantom power are required. However, the absence of such an input is also not an insurmountable obstacle - some microphones have adapters that allow you to receive phantom power from a 230 V network (for more details, see “Included”). Another alternative is the phantom/battery combo described below. In general, this method of power supply is convenient in that it allows you not to worry about the battery charge, but freedom of movement is limited by the length of the power cord.

Battery. Powered by rechargeable battery. Note that it is often poorly suited for analog capacitor models - the required 48 V is difficult to provide with a small portable battery. But in electret microphones, battery power is used quite often. Another area of application for batteries is models with wireless connections (see “Features/capabilities”), in which autonomous power is required at a minimu...m for the operation of the transmitter. In any case, the battery is convenient due to the absence of unnecessary wires. It, of course, needs to be recharged periodically, but the power consumption of microphones is usually low and the battery life even in the most modest models reaches several hours.

— Phantom/battery. Microphones of this type can operate either from phantom power or from their own built-in battery (for more details on both, see above). This makes them extremely versatile and can be used regardless of the presence of phantom power inputs or suitable adapters. However, it must be taken into account that the performance characteristics when using different power sources may vary slightly; this point is usually indicated in official data.

Batteries. Powered by replaceable elements of a standard size - most often AA (“pen-AA batteries”). The main advantage of such microphones is the quick replacement of batteries when discharged. Batteries are usually not included in the package and must be purchased separately. However, this provides an advantage - the ability to independently choose the type and brand of replacement batteries.

Note that when connected via USB, the microphone receives the power required for operation through the same connector; For such models, the type of power supply is not separately indicated.

Material

The material from which the microphone body is made.

— Plastic. The main advantages of plastic are low cost, light weight and complete insensitivity to corrosion. At the same time, it is considered less reliable than metal, due to its relatively low strength (high-strength varieties of plastics exist, but in the case of microphones, it is usually easier to use metal after all). Therefore, this material is popular mainly among models for which lightness and miniature are important — primarily lapel, head and those that are installed on a video camera(see "Destination"). It is also often found in computer and laptop devices, but plastic microphones for vocals usually belong to the entry-level price category.

— Metal. Metal is more expensive than plastic and has more weight. On the other hand, metal microphones are much stronger and more reliable, besides, a microphone in such a case gives the impression of "solidity" (not least due to massiveness). This option is popular with mid to high end vocal, studio and instrument microphones.
Rode NT1-A often compared