Hi,
My Sony cameras configuration is XAVC S 4K 60 Mbits/s during recording. But Vegas Pro 14 has only XAVC S 100Mbits/s codec for re-encoding. So, I have tried Vegas Pro 16 but there is no more 60Mbits/s codec. It takes a long time to re-encode and file size is larger. Is there a way to get XAVC S 60Mbits/s codec ?
Thank you
PC Configuration : ASUS VivoBook Pro 17 and Windows 10 64bits
My Sony cameras configuration is XAVC S 4K 60 Mbits/s during recording.
I think that's the lowest possible quality for 4k. XAVC 4k records normally with 150/100Mbits/s. XAVC is a recording format, not an endformat (as far as I now). I would render either to AVC or HEVC instead of XAVC.
I am also curious about what the final destination (or purpose) of these files is.
Sony camera (RX10M3 and A7M3) have 2 recording speed (60Mbits/s and 100Mbits/s) depending on memory card. As I am doing a short film, I want to synchronize each video sequence I made with a sound recorder in a first time. And then editing new video sequences for the final film.
Que? :)
60/100 is the data rate; nothing to do with "speed." I don't understand why you would have to do anything to them other than drag them on to the timeline and edit them. You certainly wouldn't want to re-render the 100 Mbit footage to 60 just to "dumb it down." Now, if they were different frame rates (e.g. 29.97 vs 23.976) then you have a bit of a problem to solve.
same here. XAVCS is an aquisition format. but not good for editing and delivery.
Sony camera (RX10M3 and A7M3) have 2 recording speed (60Mbits/s and 100Mbits/s) depending on memory card. As I am doing a short film, I want to synchronize each video sequence I made with a sound recorder in a first time. And then editing new video sequences for the final film.
For my clarity, from your camera source media you are syncing your audio, then rendering an intermediate with XAVC S at the same bite rate as the camera source, and using this intermediate as your source for your project. Is that correct? If so you are acquiring at 60 Mb/s and want to render intermediates at 60 Mb/s.
to AVsupport : can you explain me why XAVCS is not good for editing ?
to Eagle Six : Yes,I want to synchronize each video file with external audio file and rendering each in XAVCS with the same bit rate. Then using new files as source for my project. Final delivery will certainly be in another format.
Yes,I want to synchronize each video file with external audio file and rendering each in XAVCS with the same bit rate. Then using new files as source for my project. Final delivery will certainly be in another format.
Should make no difference for synchronizing, better rendering with a higher bitrate than a lower bitrate as the source Media. XAVC rendertemplates have all a constant bitrate, 100 mbps for 4k.
to AVsupport : can you explain me why XAVCS is not good for editing ?
intra frame compression. codec uses 'longer' timespans to reduce data. VP performs better with frame-by-frame data readily available.
1) You can sync the replacement audio to the clips on the timeline and then lock them together. Then no need for the extra render.
2) If you still want to use an intermediate for some reason, then XAVC-S is a bad choice (hard to edit, and lossy format). Better to use visually lossless intra frame/wavelet codec like cineform, MagicYUV, or XAVC-intra.
to Eagle Six : Yes,I want to synchronize each video file with external audio file and rendering each in XAVCS with the same bit rate. Then using new files as source for my project. Final delivery will certainly be in another format.
@Philbec Thank You. With that in mind, I would follow @Kinvermark suggestion below....
1) You can sync the replacement audio to the clips on the timeline and then lock them together. Then no need for the extra render.
2) If you still want to use an intermediate for some reason, then XAVC-S is a bad choice (hard to edit, and lossy format). Better to use visually lossless intra frame/wavelet codec like cineform, MagicYUV, or XAVC-intra.
"PC Configuration : ASUS VivoBook Pro 17 and Windows 10 64bits"
I routinely edit 100 Mbps XAVC from the Sony RX10IV without using an intermediate on my desktop. You may not be so lucky with a laptop. Also, converting to an intermediate will/should raise the bit rate as each p-frame is reconstructed to an I-frame. This could make I/O the limiting factor for a laptop drive unless you use an SSD.
Perhaps a good all-round solution for working with a laptop would be to use proxies. Read the Vegas Help section on Proxies.
Perhaps a good all-round solution for working with a laptop would be to use proxies. Read the Vegas Help section on Proxies.
Agreed. Much faster/easier on the system to make small "lightweight" proxies rather than large lossless intermediates - assuming the OP doesn't need an intermediate for some reason we are unaware of.
Final delivery will certainly be in another format.
Using an interframe compressed codec like XAVC-S as a "lossless intermediate" is certain to introduce generational loss that may not be seen the first time, but is cumulative, like making a photocopy of a photocopy.
There are several wonderful intraframe compressors that will not reveal any loss after five generations, including XAVC-I, and are vastly superior for this purpose.
That all said, there is no reason not to use a lightweight proxy, the most obvious route to the outcome you describe.
It may be helpful to note that Vegas will not stream copy XAVC, even at the exact bitrate it was recorded. It will always encode, thus lose some quality. If you are interested in playing with fast stream copy, which for all intents is 1:1, a muxer called VideoRedo may be to your liking.
At least VP does smart render XAVC-I.
I don't think I knew about that.
I knew about xdcam, etc.
Problems on my end with XAVCS usually start once you add grade & FX. Recommending Happy Otter Scrips for proxy replacement, to x264 with nVidia support.Gives fast transcoding, low filesize, and quality preview if your system can handle 1080 on a 4K screen ;-). More choices than the 'internal' option
@Marco. could you pls elaborate on the 'smart render' ?
"...could you pls elaborate on the 'smart render' ?"
Look for the phase "No Recompression Required" in this epic.
And it works!
Great tip, @Marco.
It turns out I had forgotten this post:
https://www.vegascreativesoftware.info/us/forum/rendering-choices--115476/#ca715743
Oh, I had great fun hiding my own Easter Eggs this year!
"...could you pls elaborate on the 'smart render' ?"
Look for the phase "No Recompression Required" in this epic.
I also smart renders pre-rendered sections🙂
Hi,
Thank you for all of you for explanation. As for XAVC-I, I thought that XAVC-S didn't need recompression. I was wrong.
Have a good day
When doing these tests I had to disable “no recompress rendering” in Vegas, otherwise I wouldn’t get any generational change using Xavc-I, see the note at the very bottom of the left table.
proxy vs intermediate? guess the jury's still out? personally, currently I haven't found a XAVC-S based 4K intermediate workflow I was really happy with..
Unless one needs the durability and portability an intermediate offers, the file size and time spent rendering makes the proxy a clear winner.