b. Speed copying. Copies may be made at speeds other than the original. For example, the
original copy may be 7 1/2 ips. The tape to be duplicated can be made in half the time if both the decks
are set on 15 ips. The recording comes out the same.
c. The main disadvantage of speed copying is that it cannot be monitored. When performing
speed copying, the levels must be set at the higher speed to prevent over modulation.
7.
Modification of Playback Speed. The playback speed can be changed from the original if
desired.
a. For example, all that is available for playback is a recorder with speed for tapes a 7 1/2 ips.
The original tape is a 3 3/4 ips. The original has to be made into a 7 1/2 ips. To do this, play back the
original at twice its original speed. Which is 7 1/2 ips. The recorded copy would be set at 15 ips which
is twice the speed of 7 1/2 ips.
b. If the original is at 7 1/2 ips and a copy that will play back at 3 3/4 ips desired, start by
playing the original at 15 ips. If recording a copy at 7 1/2 ips, it will be a 3 3/4 ips copy.
Learning Event 5:
STORE AND HANDLE RECORDS AND TAPE
1.
Audio transcriptions (record). When handling a record, touch it only by the outermost edges or
by the center label. Avoid touching the grooves. Oil and grease on the fingers transfer to the record and
attracts dust. Above all, avoid dust! Over a period of time, dust becomes a record's worst enemy.
a. To remove dust, wash the record with lukewarm water. In some cases, use a very mild
detergent. After washing, wipe the record clean with a lint free cloth. Because the record may become
gummy and collect dust, avoid record preservative and lubricants.
b. Remember to store records on their edge in a vertical fashion. Storing them horizontally
causes them to warp over a period of time. Store records in dust-free, moderately dry areas with normal
room temperatures.
2.
Audio tape/video tape. Audiotape and videotape consist of the same materials; therefore, the
storage and handling procedures for audiotape also apply to videotape.
a. When handling tapes, keep these things in mind. First, excessive heat dries out tapes.
Second, any excessive contact with a strong magnetic field erases the tape. Third, avoid the rapid
rewind or fast forward of audiotape as this causes tape stretching and wearing while damaging the tape
heads. Fourth, try to keep fingers off the emulsion side of the audiotape.
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