2. How does a condenser microphone work?

A condenser microphone is actually a pretty complex device. An ultra-thin gold sputtered foil is mounted in front of a solid metal disk, so close they – almost – touch. The metallized foil is the diaphragm, the solid metal disk is what is called the back electrode; together they form a capacitor. Condenser is another word for capacitor; sometimes condenser mics are called “capacitor microphones.” As you may remember from physics class, a capacitor is nothing but two metal surfaces facing each other. A capacitor can store a small amount of electrical energy. The amount of this “capacitance” is proportional not only to the size of the capacitor but also to the proximity of the two plates. The closer they are, the higher the capacitance. This leads us back to the condenser capsule: When sound hits the thin gold sputtered diaphragm, it moves to the rhythm of the soundwaves. The solid back electrode, however, does not move. What we have, therefore, is a relative movement between diaphragm and back electrode. Which means the capsule/capacitor changes its capacitance as a result of the soundwaves that hit the diaphragm. Acoustic energy is transformed into an electrical signal! The really cool thing about condenser microphones is that the diaphragm has very low mass. The ultra-thin metallized foil weighs much less and thus moves more quickly than the thicker diaphragm of a dynamic microphone with its heavy moving coil affixed to it.

A condenser mic can follow the rhythm of the soundwaves more accurately than dynamic mics. As a result, condensers sound more natural and transparent.

But the capsule signal is not yet ready for a microphone preamp. The capsule’s rhythmically changing capacitance must be translated into a rhythmically changing voltage, and this voltage signal must be amplified and transformed into a low impedance signal. This requires some (active) electronics, and hence a power supply is needed. Condenser mics usually are “phantom powered.” Phantom power is a voltage supplied by the preamp or mixer via the normal 3-pin XLR cables you would use for dynamic mics, too. Almost all preamps and mixers within the past 10 or so years have phantom power capability. Most mixers have only one button to engage phantom power on all microphone inputs; most external preamps have separate switches for each input. For sonic reasons, some condenser mics use tubes as amplifying devices. Tubes require very high voltages that normal phantom power cannot supply. These tube condenser microphones, therefore, must be powered by a dedicated power supply (which usually is included in the purchase).

By the way: The condenser microphone was invented by Georg Neumann, the founder of the microphone company of the same name. Interestingly enough, some of the earliest models from the 1930s were good enough to be used in recording studios today. Imagine how great today’s models must be!

Uw contactpersoon
Tel: +49-9546-9223-30
Fax: +49-9546-922328
Hot Deals Krijg gratis Hot Deals!

Meer dan 9.550.000 musici/muzikanten lezen deze al: de Thomann Hot Deals. Krijg nu uw gratis exemplaar met meer dan 400 actuele aanbiedingen!

in de ‹berblick

Native Instruments Traktor S4 MK3 Native Instruments Komplete Kontrol A49 Dreadbox Erebus V3 Nux B3 microphone wireless system Zoom H3-VR M-Audio M-Track 8x4M BluGuitar Amp1 Mercury Edition Morley Mini Michael Amott Wah Behringer MX882 V2 the t.racks DSP 206 Behringer NX3000 XVive U3 Microphone Wireless System
(2)
Voor u aanbevolen
Native Instruments Traktor S4 MK3

4-Channel DJ controller and audio interface HAPTIC DRIVE: motorised jog wheels with haptic feedback for a new way of mixing, RGB LED ring around each jogwheel for visual feedback, High-resolution colour displays, Deck FX & Mixer FX, Pro mixer...

naar het product
€ 888
(3)
Voor u aanbevolen
Native Instruments Komplete Kontrol A49

Compact controller-toetsenbord Nieuw ontwikkeld semi-gewogen toetsenbord met 49 toetsen, OLED-display, 8 aanraakgevoelige draaiknoppen, Pitch en Mod Wheels, 4D push-encoder, Smart Play, Machine-integratie, Controle over Logic ProX, Ableton Live, Garage Band, Cubase en Nuendo, Voeding via USB, 6,3 mm Foot...

naar het product
€ 189
Voor u aanbevolen
Dreadbox Erebus V3

Analogue Desktop Synthesizer Fully analogue, two-part paraphone synth, 3 Oscillators, 2 Oscillators with individual glide, 12 dB Resonance multimode filter (LP and HP), 2 envelopes (1xADSR and 1xADSR for AMP), Lo-Fi echo, White noise noise generator, LFO, Clock generator,...

naar het product
€ 499
(1)
Voor u aanbevolen
Nux B3 microphone wireless system

Wireless Transmission System 2.4 GHz plug-on system for dynamic microphones, Ready-to-use set of transmitter and receiver, 2.4 GHz band suitable for worldwide license-free operation, 32-Bit / 48 kHz high-resolution audio quality, 6 Channels, Range: Up to 30 m, Latency...

naar het product
€ 179
Voor u aanbevolen
Zoom H3-VR

Multi-Channel Mobile Recorder Allows easy creation of spatial audio recordings, Recording and processing of 360 ° audio material for VR, AR and mixed reality content, 4 Integrated microphones in Ambisonics arrangement, 3 Recording modes: Ambisonics, Stereo Binaural or Standard...

naar het product
€ 369
Voor u aanbevolen
M-Audio M-Track 8x4M

USB Audio Interface High-quality converters with 24-bit / 192 kHz resolution, Hi-Speed ​​USB-C connection, Direct monitoring, Central large volume control, +48V Phantom power for channels 1-4, 4x Microphone / line input (XLR / TRS combo socket), 2x Instrument input...

naar het product
€ 321
(1)
Voor u aanbevolen
BluGuitar Amp1 Mercury Edition

BluGuitar Amp1 Mercury Edition; hybrid amplifier head for electric guitar; versatile, fully analogue amplifier in a pedal format, adjustable boost, reverb, three integrated footswitches, speaker simulation for recording applications, new Nanotube valve power amplifier, PowerSoak Attenuator; 4 channel; power: 100...

naar het product
€ 699
Voor u aanbevolen
Morley Mini Michael Amott Wah

Effects Pedal Michael Amott (Arch Enemy) Signature Model, Mini wah wah, Limited edition - 500 copies worldwide, Electro-optical circuit, Suitable for guitar, bass or keyboards, Switchless design, Michael's High Gain Wah Tone and Sweep, Custom MQ2 inductor coil, Automatic...

naar het product
€ 319
Voor u aanbevolen
Behringer MX882 V2

Behringer MX882 V2, 8-channel splitter / mixer, 8 in / 2 out line mixer and 2 in / 8 out line splitter, each channel can operate independently in mixer or splitter mode, usable as 6 in / 6 out level...

naar het product
€ 80
Voor u aanbevolen
the t.racks DSP 206

Digital Speaker Management System 2x XLR Inputs, 6x XLR Outputs, 96 kHz Sampling rate, 32-bit DSP, 24-bit AD/DA converter, USB and RS232/485 interface, Ethernet-interface, Design: 19" / 1 RU

naar het product
€ 298
(2)
Voor u aanbevolen
Behringer NX3000

Eindversterker Lichtgewicht 2-kanaals class D versterker, Vermogen: 2x 900 watt bij 4 Ohm, 2x 1500 watt bij 2 Ohm, Ingangen: jack en XLR, Uitgangen: Speaker Twist, Ingebouwde crossover, Geïntegreerde limiter, Stroom, signaal en limit LED's, Type: 19" / 2...

naar het product
€ 179
(5)
Voor u aanbevolen
XVive U3 Microphone Wireless System

Digital Wireless Microphone Transceiver System Works without battery or mains power, For use with dynamic microphones, Integrated rechargeable lithium battery, Range up to 20 m / 70 ft (without obstacles), Frequency bandwidth: 20 Hz - 20 kHz, Latency: <5...

naar het product
€ 199
Feedback Fout gevonden of wilt u feedback geven op deze pagina?

We kijken er naar uit om van u te horen en proberen elk probleem zo snel mogelijk op te lossen.

Schrijf een kommentaar. Voer s.v.p. uw Email-adres in.