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Consumer Electronics by S. P. Bali

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VHS HIGH FIDELITY AUDIO

Beta was the first to market a hi-fi VCR. JVC had considerable trouble developing a competing hi-fi audio standard for their VHS decks. The standard VHS recording format does not allow enough space between the luminance sideband and the chrominance carriers even if the luminance carrier could be moved up a few notches. In fact, VHS decks cannot tolerate a change in frequencies. The limitation means that VHS-VCRs cannot use the video heads to record hi-fi audio, as Beta VCRs do. A second set of heads, as shown in Fig. 33.28, are added to the video-head drum. The heads operate in the same manner as video heads. One head in the set records a field's audio information, the next head records another, and so forth. The gap of ...

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