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Low-level frequency response, measured by Audio magazine at -20 dB relative to Dolby level, extends from 9–23100 Hz (± 3 dB) for Type I and Type IV tapes, and up to 24500 Hz (± 3 dB) for Type II tape. [37] [h] At Dolby level, where frequency response is limited mostly by tape saturation, rather than the deck, the Revox measured 23–14100 ...
Video tape tracking. In a video tape recorder, tracking is a calibration adjustment which ensures that the spinning playback head is properly aligned with the helical scan signal written onto the tape. In the case of VHS, a linear control track at the tape's lower edge holds pulses that mark the beginning of every frame of video; these are used ...
Clapperboard. A clapperboard, also known as a dumb slate, clapboard, film clapper, film slate, movie slate, or production slate, is a device used in filmmaking, television production and video production to assist in synchronizing of picture and sound, and to designate and mark the various scenes and takes as they are filmed and audio-recorded.
Compact Cassette tape types and formulations. Standardized notches for automatic tape selection. Top to bottom: Type I (and Type III), Type II, Type IV. Audio compact cassettes use magnetic tape of three major types which differ in fundamental magnetic properties, the level of bias applied during recording, and the optimal time constant of ...
Takeaway. In other words, the idea is that listening to binaural beats can trigger or elicit certain brain states, such as focus or a reduction in pain when listened to at certain frequencies.
The formal definition of calibration by the International Bureau of Weights and Measures (BIPM) is the following: "Operation that, under specified conditions, in a first step, establishes a relation between the quantity values with measurement uncertainties provided by measurement standards and corresponding indications with associated measurement uncertainties (of the calibrated instrument or ...