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--- wiki:sound:basic_sound [2020/09/22 12:22]
Craig Flint Formatting
+++ wiki:sound:basic_sound [2022/10/09 14:56] (current)
AliceC-E ↷ Page moved from wiki:basic_sound to wiki:sound:basic_sound
@@ Line 30: / Line 30: @@
 ===== Microphone types =====
-There are three main types of microphones, called ''dynamic, condenser'' and ''ribbon''. You'll mostly deal with dynamic and condenser mics in the Annex.
+There are three main types of microphones, called ''dynamic'', ''condenser'' and ''ribbon''. You'll mostly deal with dynamic and condenser mics in the Annex.
 ==== Dynamic ====
@@ Line 38: / Line 38: @@
 ==== Condenser ====
-Condenser mics use a charged set of plates that act like an electrical capacitor (which is why they are sometimes also known as ''capacitor microphones''). The sound pressure waves cause the front plate to get closer to and further from the back plate, changing the capacitance and thus the voltage. The plates need to have different starting voltages though, so the microphone is supplied with power down the microphone cable by the mixing desk. This is called ''phantom power'' as it sends a constant 48V down the same mic cable that is sending back the signal to the mixer. The mixer can remove this constant voltage from the fluctuating signal it receives from the microphone, extracting only the audio. As the constant voltage makes no difference to the sound (other than actually allowing it to make sound at all!) it gets its name of ''phantom power''. With a better sensitivity and high frequency response, these mics are most often used on quieter, more delicate sources such as the flute or violin.
+Condenser mics use a charged set of plates that act like an electrical capacitor (which is why they are sometimes also known as ''capacitor microphones''). The sound pressure waves cause the front plate to get closer to and further from the back plate, changing the capacitance and thus the voltage. The plates need to have different starting voltages though, so the microphone is supplied with power down the microphone cable by the mixing desk. This is called ''phantom power'' as it sends a constant 48V down the same mic cable that is sending back the signal to the mixer. {NOTE: remember to enable phantom power on the mixer if the mic needs it. There's normally a button (normally marked ''+48v'') for each channel (or a bank of channels) to turn this on. When you aren't getting any sound from the microphone, this is the first thing to check!} The mixer can remove this constant voltage from the fluctuating signal it receives from the microphone, extracting only the audio. As the constant voltage makes no difference to the sound (other than actually allowing it to make sound at all!) it gets its name of ''phantom power''. With a better sensitivity and high frequency response, these mics are most often used on quieter, more delicate sources such as the flute or violin.
 ==== Ribbon ====

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