📖 Reference
Audio Gear Glossary
Every term you will encounter when buying or using microphones, audio interfaces, headphones, and studio gear — explained in plain English with product recommendations.
🎙️Microphones
Phantom PowerA 48-volt DC supply sent through an XLR cable to power condenser microphones without a separate power source.Read more →Condenser MicrophoneA microphone that uses a capacitor (condenser) to convert sound into electricity — more sensitive than dynamic mics but requires phantom power.Read more →Dynamic MicrophoneA microphone that uses electromagnetic induction to convert sound into electricity — robust, no phantom power needed, and ideal for loud sources or untreated rooms.Read more →Polar PatternThe three-dimensional shape describing where a microphone picks up sound and where it rejects it.Read more →Proximity EffectThe bass boost that occurs when a directional microphone is placed very close to a sound source — used creatively by broadcasters for a warmer voice sound.Read more →Self-Noise (Equivalent Noise Level)The inherent electrical noise a microphone generates on its own, measured in dB(A) — lower is better for quiet recordings.Read more →USB MicrophoneA microphone with a built-in analog-to-digital converter that connects directly to a computer via USB — no audio interface required.Read more →
🎛️Audio Interfaces
Audio InterfaceA device that converts analog audio (from microphones and instruments) into digital audio for your computer — and back again for playback through speakers or headphones.Read more →Preamplifier (Preamp)A circuit that amplifies a microphone's weak output signal to a line level usable by recording equipment — built into every audio interface.Read more →LatencyThe time delay between a sound being captured by a microphone and being heard through headphones or speakers — low latency is critical for comfortable monitoring while recording.Read more →Sample RateThe number of audio samples captured per second during digital recording — 44.1 kHz is the CD standard; 48 kHz is the video standard; 96 kHz is common for high-resolution audio.Read more →Bit DepthThe number of bits used to represent each audio sample — more bits means more dynamic range and a lower noise floor. 24-bit is the standard for recording.Read more →Direct MonitoringA feature in audio interfaces that routes the mic signal directly to the headphone output with zero latency — bypassing the computer so performers can hear themselves without delay.Read more →
🎧Headphones
Open-Back HeadphonesHeadphones with perforated or open ear cups that allow air and sound to pass freely — delivering a more natural, spacious soundstage but with significant sound leakage.Read more →Closed-Back HeadphonesHeadphones with sealed ear cups that isolate the listener from outside noise and prevent sound from leaking out — essential for recording and monitoring.Read more →ImpedanceThe electrical resistance of headphones to an audio signal, measured in ohms — low impedance (16–80Ω) is easy to drive from phones and interfaces; high impedance (250–600Ω) requires a dedicated amplifier.Read more →
🔊Room Acoustics
Room AcousticsThe way sound behaves in a physical space — including reflections, standing waves, and reverberation — which significantly affects how recordings and mixes sound.Read more →Reverberation (Reverb)The persistence of sound after the original source stops, caused by multiple reflections in an enclosed space — too much room reverb makes recordings sound distant and amateur.Read more →Acoustic TreatmentMaterials placed in a room to control reflections, reduce reverb, and manage bass buildup — making recordings cleaner and mixes that translate better to other speakers.Read more →Standing Wave (Room Mode)A pattern of fixed peaks and nulls in bass frequency response caused by sound reflecting between parallel walls — makes room acoustics uneven and mixing unreliable.Read more →
🔌Cables & Connectors
XLR (Balanced Audio Connector)A 3-pin professional audio connector used for microphones, audio interfaces, and studio gear — carries balanced audio to reject electrical interference over long cable runs.Read more →Balanced AudioAn audio transmission method using two signal conductors that carry the same signal in opposite polarity — interference picked up by the cable is cancelled at the destination, reducing noise.Read more →
🎵General Audio
GainThe amplification of an audio signal — increasing gain makes the signal louder; too much gain causes clipping and distortion.Read more →ClippingDistortion that occurs when an audio signal exceeds the maximum level a system can handle — sounds harsh and is usually unrecoverable.Read more →High-Pass Filter (Low-Cut Filter)A filter that removes frequencies below a set point while allowing higher frequencies to pass — used to eliminate rumble, handling noise, and proximity effect.Read more →Dynamic RangeThe difference between the quietest and loudest sounds in an audio signal or system — wider is generally better for preserving detail in recordings.Read more →MonitoringThe act of listening to audio during recording or mixing — through headphones or studio monitors — to assess quality, adjust levels, and make mix decisions.Read more →Frequency ResponseA graph showing how a microphone, headphone, or speaker responds to different frequencies — a flat response is ideal for accurate recording and monitoring.Read more →