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Entries found for search: input

auto-input : One of the electronic operating modes of a multitrack recorder. When auto-input is selected, all channels will remain in sel-sync playback mode until the machine is placed in record mode. Any channels that are in "ready " status will then begin recording and will automatically pass their input signals direct to their outputs. When recording is stopped, these channels return to sel-sync playback mode. Also called stand-by mode.

B inputs : (1) An additional set of inputs to a mixer channel that allow either additional (but not simultaneous) tracks to be assigned a mixer; (2) More commonly these days, a different source of the same information that appears on the A inputs. This latter technique allows a sound editor to work offline on a sequence while the mixer is adjusting the overall EQ and level in automation, while playing back from another copy. The material is recorded to tape, after witching inputs, when the editor is finished.

equivalent input noise (EIN) : EIN is becomming a common method for specifying noise in audio equipment. This is a computed figure equal to the noise measued at some gain setting, minus the gain. For example, if a microphone preamplifier puts out -85dBV noise when set for 40dB of gain, the EIN is -125dBV. Note that, while -125dBV seems better than -85dBV, both figures represent the same amount of noise."

input : (1) The connector by which a signal enters an electronic device. (2) The incoming signal, itself. (3) An electronic operating mode in tape recorders, in which the input signals to various tracks are routed directly to their outputs.

input level : The signal voltage or power present at the input of a device. See headroom headroom.

input stage : That portion of a mixer which consists of the microphone preamplifier.

keying input : In a signal generating or signal processing device, an input for a control signal that determines the type and amount of processing applied to the audio signal, or of the sound produced, respectively.

step input : A method of loading events (such as notes) into a sequencer’s memory one event at a time. Common step values are sixteenth- and eighth-notes. After each entry, the SPP will advance one step then stop, awaiting new input, as opposed to recording while the clock is running, called real-time input. Also called event editing, step recording, step-mode, and step-time.

real-time input : MIDI input generated in real-time, such as during a performance or studio recording session. See real-time, real-time control.

transformerless input : On an audio device, an input which does not use a transformer for impedance-matching. Such inputs will make use of semiconductors such as transistors, and may be described as active inputs. Their main advantage is a saving in size, although some argue that they give better performance than transformers, the truth of the assertion probably depending most on the quality of the device, rather than its type.

differential input : Signal input response to amplitude differences between two out-of-phase signals. Used in a balanced wiring system where the two wires carry signals that are identical, but 180° out-of-phase. The phase difference means that as a signal increases in voltage along one line, its mirror image on the other line decreases. This is useful because signals, such as hum and noise which have accumulated along a cable acting as an antenna, that are in phase are cancelled. See common mode, differential amplifier.



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