BNO Speakers Early Reflections

The first echoes in a room, caused by the sound from the sound source reflecting off one surface before reaching the listener.

Coincident Microphones (Coincident Pair)
Two microphones whose heads are placed as lose as possible to each other so that the path length from any sound source to either microphone is for all practical purposes, the same.

BNO Acoustics BP-40 Delay (Digital, Analogue)
1) Effect used to create echo…echo…echo…echo…echo…
2) In more advanced systems used in very large venues, delay can be used to time the arrival of the signal to the speakers in the back of the room so that people in the back hear the sound coming from those speakers at the same time that the sound coming from the speakers in the front of the room arrives.

Gain Reduction
The working of a limiter or compressor reducing gain during high-level passages.

BNO Acoustics 6k-52 Amplifier
Sound equipment that converts the low voltage, low current signal from a tape deck, mixer etc. into a higher current signal suitable for driving speakers. See Power Amplifier, Crossover.

Ground Loop
A double grounding of a line or electronic device at two different "ground" points of differing voltage.

House Sync
A synchronization signal such as SMPTE time code that is used by all recorders in the control room.

Dynamic Mic
Robust type of microphone which picks up the sound on a diaphragm connected to a coil of wire which moves within a magnet. An alternating current is induced into the wire which provides the electrical output. Most dynamic mics have low output impedance of 200 Ohms. See Condenser Mic.