Aaron Koolen
Well-known member
Barry_Green said:
****, 8 tracks? How are they going to fit all those XLR plugs on it then?
Aaron
8GB 20 minutes of 720p 24fps?
- Thread starter braw
- Start date
****, 8 tracks? How are they going to fit all those XLR plugs on it then?
Aaron
satellitebunny
Member
Barry_Green said:
If this info is correct, then I'll have to agree with you, that it will propably be recording 720/24p without the padded frames. That sounds great, as you'll get much more minutes on a P2 card that way.
Another question that remains unanswered is: What about external harddisk/firestore type recording? Will it still be without the padded frames, or will it be the full 100 Mbit/s? This we propably won't know until NAB, or not even then...
Barry Goyette
New member
I don't know if this clears this one up or not...
From Jan Crittenden Livingston (on dvinfo.net)
"While I cannot disscuss how this camera works, I can discuss the concept of the data remaining in the DVCPRO HD signal once the extra frames have been removed. DVCPRO HD has 100Mbps at 60 frames of information. The compression on each frame is equal and the same, d optimized for the compromise of intraframe compression. If we look at the fact that there is 60 frames per second and there is 100Mbps, we have a formula. If we only use 24 of those frames, then we are using a little over 1/3 of the data or about 40Mbps. When working with FCP over firewire, you can reduce the data load from 100Mbps to 40Mbps just by casting off the exta frames."
From Jan Crittenden Livingston (on dvinfo.net)
"While I cannot disscuss how this camera works, I can discuss the concept of the data remaining in the DVCPRO HD signal once the extra frames have been removed. DVCPRO HD has 100Mbps at 60 frames of information. The compression on each frame is equal and the same, d optimized for the compromise of intraframe compression. If we look at the fact that there is 60 frames per second and there is 100Mbps, we have a formula. If we only use 24 of those frames, then we are using a little over 1/3 of the data or about 40Mbps. When working with FCP over firewire, you can reduce the data load from 100Mbps to 40Mbps just by casting off the exta frames."
thisiswells
Retired
I think they will integrate a "final cut pro-like" frame remover as it saves data to P2, then
re-instert duplicate frames upon playback to NTSC, just like Barry said.
re-instert duplicate frames upon playback to NTSC, just like Barry said.
Barry_Green
Moderator
The format supports 8 tracks of uncompressed audio, yes. And DVCPRO50 supports four tracks of uncompressed audio.Aza said:****, 8 tracks? How are they going to fit all those XLR plugs on it then?
Now, whether we'll have four (or eight!) connectors remains to be seen. I'm *really* hoping for four... I think that would be the bomb. Even if it's something like an external box that connects through a multipin connector... man, that would be sweet!
Not counting on it though... the VariCam and the SDX have just two XLR ins (plus the microphone XLR in)...
Gary_McClurg
Well-known member
Barry, always the man with the answers.
I have no clue if this is possible, but could some one make an external box like your saying and run a mixer through firewire so you could have each channel with a different mic.
I have no clue if this is possible, but could some one make an external box like your saying and run a mixer through firewire so you could have each channel with a different mic.
Luis Caffesse
Admin
Gary_McClurg said:
Intriguing idea, but I would doubt it.
That would mean inputing something through the firewire while shooting, at which point the camera is usually streaming the signal out of the firewire port.
I don't think you can input information through the firewire port on any camera while in 'camera' mode...it seems to only take in data while in 'vtr' mode.
(then again, so far the HVX doesn't seem to be like most other cameras).
thisiswells
Retired
Those tracks are really there for post production and surround sound mastering.
With that said--yeah there is an interface for the big cameras, but they aren't eight tracks.
Referencing Wolf Seeburg's book, 24p: Sound and Video Assist" Page30. The Sony CineAlta
will take an additional two tracks (20bit at 46K, yes 46K) for a total of four inputs using the
HDCA-901 adapter with two XLR inputs. The information is less clear for VariCam, as Wolf
has not used VariCam as much (or chose to dedicate his book to Sony 90% and Panny 5%)
because it isn't really clear what Panasonic offers. It hints at the idea of inputs 3+4 using
AES, but as I have read it, it just isn't real clear.
Regardless, it seems like the full audio capabilities are recognised in fully capable VTR's with
AES inputs or possibly individual analog XLR inputs. There really isn't a field camera that
uses all eight tracks, even with the existing breakout boxes.
brian wells
With that said--yeah there is an interface for the big cameras, but they aren't eight tracks.
Referencing Wolf Seeburg's book, 24p: Sound and Video Assist" Page30. The Sony CineAlta
will take an additional two tracks (20bit at 46K, yes 46K) for a total of four inputs using the
HDCA-901 adapter with two XLR inputs. The information is less clear for VariCam, as Wolf
has not used VariCam as much (or chose to dedicate his book to Sony 90% and Panny 5%)
because it isn't really clear what Panasonic offers. It hints at the idea of inputs 3+4 using
AES, but as I have read it, it just isn't real clear.
Regardless, it seems like the full audio capabilities are recognised in fully capable VTR's with
AES inputs or possibly individual analog XLR inputs. There really isn't a field camera that
uses all eight tracks, even with the existing breakout boxes.
brian wells
thisiswells
Retired
It is fair to note Wolf Seeburg is the "dual system audio" advocate in Hollywood...
So his assessment of the audio capabilities on an HD camera may be skewed a tad.
So his assessment of the audio capabilities on an HD camera may be skewed a tad.