Test Tones
1) A recording of several single-frequency tones at the beginning of a tape reel at the magnetic reference level that will be used to record the program. 2) Artificially generated tones that are used to calibrate an audio system.
1) A recording of several single-frequency tones at the beginning of a tape reel at the magnetic reference level that will be used to record the program. 2) Artificially generated tones that are used to calibrate an audio system.
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