17 Multiple choice questions
added to smaller tape recorders that automatically boosts an audio
signal if it is below a certain pre-specified level, or automatically
lowers it if the signal is too high.
- The path that is recorded on magnetic tape.
layers of spooled magnetic tape, if too thin, may have the magnetic
imprint of one layer transferred to the adjacent layer, called this.
standard that is used for circuitry in tape machines to increase and
subsequently decrease the amplitude of certain frequencies in order to
restore inherent frequency losses in tape recording.
heads that produce four separate tracks. In most machines with these,
tracks 1 and 3 are played while the tape runs forward, and when the
tape's direction is reversed, tracks 2 and 4 may be played. However, a
machine may be configured so that all four tracks are used in the same
- A magnet created by the induction of an electrical flow through iron.
tape head that receives a signal from an amplifier and produces
variations in its magnetic field, thus magnetizing a portion of the
oxide coating on the recording tape as it passes across its gap.
magnet across which the magnetic tape is pulled. Three functions are
performed by tape heads: 1) erasing previous magnetic imprints, 2)
recording, and 3) playing back.
- The recording and playing of sounds in real time. The flow of information is continuous
ultra high frequencies introduced to the tape recordings process to
improve the fidelity of problematic audible frequencies and amplitudes
usually masked by tape noise, an inherent condition of magnetic
noise created by the magnetized, randomized, iron oxide particles on
magnetic tape. Full tape erasure cannot be obtained because as the tape
passes the head at any given moment, some randomized magnetized
particles are in alignment with the playback head. The random voltage
fluctuation produced by these particles passing the tape head produce
noise. This noise limits how small a signal's amplitude may be recorded.
one groove on a record lies too close to an adjacent groove, the phono
stylus may receive a portion of the signal from the adjacent groove.
tape head that sends a signal to the amplifier by varying its magnetic
field in accordance with a recorded signal that is passed across its gap
- Increasing and subsequent decreasing of certain frequency and amplitude ranges.
tape head that precedes the record head to remove any signal previously
recorded on the magnetic tape. This is done by high frequency
alternating current that randomizes the magnetic patterns on the tape.
frequency and amplitude considerations necessitate that output signals
from records, tapes and microphones be processed to deliver a signal to
deliver a signal to the amplifier that will accurately reproduce the
original sound. This item performs this processing.
- The amount of amplitude difference between the level of noise on a tape, and the recorded signal. The greater, the better.