We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
through the recording head no longer produces a proportionate increase in the magnetisation of the tape. As a result, the recording is distorted and no manipulation of the controls during playback will produce a satisfactory result.
To give warning of saturation, many recorders possess a recording level indicator. This may be a "magic eye" or a neon lamp which flashes when the recording impulses threaten to saturate the magnetic coating. When recording, adjust the volume so that the indicator flashes occasionally on the louder passages. Then the recording is amply loud enough to avoid playback hum, but below the distortion level .
Even the recording level indicator may be misleading if you use a brand of tape for which the recorder was not designed. Some tapes saturate more readily than others. Some give a higher playback signal and some are more difficult to erase than competitive makes.
Test Recordings
If your machine has no recording level indicator, you must determine the appropriate level by experiment. When you are recording speech this is quite simple. Just speak into the microphone at the distance and volume you intend using. Then, while recording your voice, you can describe what you are doing with the controls.
It is useful to provide the knobs with numbered scales. Alternatively mark an arrow-head on each and describe their positions in terms of a clock dial. When an arrow-head is pointing straight up, it is "at 12 o'clock". When it is pointing to the right, it is "at 3 o'clock", while "6 o'clock" means it is pointing straight down.
Your test recording will sound something like this: — "This is the start. I am speaking in a normal voice about a foot from the microphone. The volume is full up, which means the arrow-head is at 6 o'clock. I am now going to turn it down to 5 o'clock. . . . The volume is now 5 o'clock. I am just going to say a few words on this setting and then
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