With the HVX, is it possible to record at a higher bitrate when coming out of the HD Analog Component

[Gary Adcock]

[Michael Pierre] “With the HVX-200 Is it possible to record at a higher bitrate when coming out of the HD Analog Component? Higher than 100 mbps. Or less compressed (4.4.4) ?”

Yes, with something like a Kona LH/e you can record it at whatever compression (up to 10bit uncompressed) as it is an analog HD signal

However I do not know of any 4:4:4 solutions that can record an analog signal, nor is the signal out of the camera 4:4:4, as the camera can only output the signal as 4:2:2

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[Pierre]

So is the HD analog component on the HVX used just for MONITORING and not for RECORDING.

[Steve Freebairn]

So, has the component output signal been compressed with DVCProHD or is it uncompressed 4:2:2 output?

[Norman Lafranchi]

Component HD output is an analog signal. DVCPro HD is a digital signal. So it’s not compressed in any digital sense.

[Jan Crittenden livingston]

The component analog output on the HVX can be converted to an HD-SDI with an AJA HD10A and this will give you a 4:2:2 signal at HD level to work with. And then you can capture at a full uncompressed signal. It is not able to be 4:4:4 as the color just is not here.

Hope this helps,

Jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems

[Pierre]

Jan,

Thanks for your reply.
You wrote, “The component analog output on the HVX can be converted to an HD-SDI with an AJA HD10A and this will give you a 4:2:2 signal at HD level to work with”.

When aquiring footage this way would the bandwidth increase?

[Uli Plank]

Well, if I understand Jan Crittenden right, the HVX 200 is delivering an analog signal to the component outputs that is coming from pre-compression stages in the camera electronics.

Even if the DVCPro codec is a very good one, it is compressing quite a bit. 100 mbps is not much for HD, and it’s only 100 mbps at 60 fps. You can expect better quality when recording without compression in the studio (not from tape, of course). BTW, this is not more bandwidth in the anlog sense. But it won’t come cheap: Apart from the card you’ll need a pretty fast RAID to keep up with the data rate.

Best regards,

Uli

[Don Wilson]

True about the data rate. Found a good solution. Sonnet Technologies has a SATA raid that does port multiplying, meaning…….finally……..one Sata cable for 5 drives. Box is $500, 5-500gig drives at $400-450 each and for around $2500 a 4.5TB HD capable raid. Need their new SATA controller card of course but will handle 4 arrays, now we’re starting to get affordable big storage for HD.

Don Wilson
AmericanaMediaInc.com