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Old 01-30-2002, 08:42 AM
joy4u joy4u is offline
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Default All video format at 48 included D1?

Is the D1 audio standard at 48 kHz?

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Old 01-30-2002, 10:17 AM
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Park Seward Park Seward is offline
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Default Re: All video format at 48 included D1?

Yes. D1 is 48k.

It is always dangerous to say "all" but all "professional" formats are at 48k and NONE are at 44.1.

It has to do with the horzontal frequency of video. The audio clock is locked to the video timebase.

Some DVCAM units record at 32k in order to get four channels on tape. If they record at 48k, the format supports two channels.

DVD audio is 48k as well as digital audio on DirecTV.

BTW, the new Sony IMX digital format supports eight channels of audio.
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