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  1. Member
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    I have tired this software.

    Cyberlink Powerdirector 7 Ultra
    video studio pro x2
    pinnacle studio ultimate version 12

    None of them will allow me to make a AVCHD file at 24mbps. What gives? I looked at MPEG-2 and they will let me use 25mbps. Is this software behind times with AVCHD reaching 24mbps?
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  2. Member edDV's Avatar
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    Originally Posted by Mike82
    I have tired this software.

    Cyberlink Powerdirector 7 Ultra
    video studio pro x2
    pinnacle studio ultimate version 12

    None of them will allow me to make a AVCHD file at 24mbps. What gives? I looked at MPEG-2 and they will let me use 25mbps. Is this software behind times with AVCHD reaching 24mbps?
    Which camcorder? I thought they all used 15 frame GOPs (NTSC) or 12 (PAL).
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  3. Originally Posted by edDV

    Which camcorder? I thought they all used 15 frame GOPs (NTSC) or 12 (PAL).
    where did he/she even mention a camcorder? might be a file as far as i can tell.

    anyway you could try an encoding gui like handbrake to make h264 mp4 files at any bitrate you want.
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    Canon HF20 records at 24Mbps, i have a file i edited and i can not find any software that will let me out put it at the original 24Mbps in AVCHD.

    They all limit the rate to around 17mbps or below.
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  5. avchd is h264 mp4. you may have to go pro. vegas pro allows avchd at bitrates of over 25mbps.
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  6. Member edDV's Avatar
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    I'll try to check it out but I've never heard of AVCHD and 24P in the same sentence. Probably means telecined 29.97i.
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  7. Premiere CS4 with the Adobe Media Encoder will allow you to encode at any bitrate, but this is intended for blu-ray and blu-ray media; you need slightly different specs if you are planning on authoring avchd content do a DVD5/9 .

    or you can export to a lossless format with your existing software (e.g. lagarith, huffyuv) then use the x264 encoder (with any of the front ends eg. MeGUI, ripbot264, handbrake etc....), and multiavchd or tsmuxer to author. You can choose any
    settings/bitrate, or a format compatible with BD5/9 i.e. avchd , or BD25 i.e. blu-ray. (all free)

    24Mbps isn't realistic for DVD5/9 media. ~35-45min for a DVD9 media, and it often doesn't work properly on SAP with the high buffer settings.

    If this is for PC playback only, you can use unrestricted settings (any h.264 settings), and get better compression without use of VBV buffer or capping
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  8. Member edDV's Avatar
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    To be useful, the camera's native format should be 24P but AVCHD is not intraframe 24p. All AVCHD has a GOP structure.

    Unless I missed something.
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  9. Originally Posted by edDV
    To be useful, the camera's native format should be 24P but AVCHD is not intraframe 24p. All AVCHD has a GOP structure.

    Unless I missed something.

    if you missed something??? where is there anything in this post about 24p avchd? 24mbps, yes. have you misplaced your glasses?
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  10. I'm a Super Moderator johns0's Avatar
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    Try multiavchd or tsmuxer as suggeted by poisondeathray,i use multiavchd all the time for dvdr-avchd.
    I think,therefore i am a hamster.
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  11. Member edDV's Avatar
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    Originally Posted by minidv2dvd
    Originally Posted by edDV
    To be useful, the camera's native format should be 24P but AVCHD is not intraframe 24p. All AVCHD has a GOP structure.

    Unless I missed something.

    if you missed something??? where is there anything in this post about 24p avchd? 24mbps, yes. have you misplaced your glasses?
    OK
    I was mixing up a couple of threads.

    Let's start over. Why do you want to output to AVCHD? Is it to play on a PS3 or Blu-Ray player?

    First understand this. The programs listed "support" AVCHD by converting it to MPeg2 or another internal format. This adds a first recode. If you later export back to AVCHD, you are converting again. Each recode reduces quality. Ideally you would export to as high a bit rate as possible.

    Premiere Pro CS4 or Vegas Pro 8 can deal with AVCHD on the timeline but even with a quad core the AVCHD realtime decode is frustratingly slow. Serious users would use a a digital intermediate format like Cineform Neo-Scene.
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    It will be for a blu-ray. I have to use software than can edit AVCH, i add effects etc and then want to save it at 24Mbps.

    You would think these popular 3 would be able to do it.

    Cyberlink Powerdirector 7 Ultra
    video studio pro x2
    pinnacle studio ultimate version 12

    I have used Premiere and vegas in the past but they are not as easy to use.
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  13. Member edDV's Avatar
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    Originally Posted by Mike82
    It will be for a blu-ray. I have to use software than can edit AVCH, i add effects etc and then want to save it at 24Mbps.

    You would think these popular 3 would be able to do it.

    Cyberlink Powerdirector 7 Ultra
    video studio pro x2
    pinnacle studio ultimate version 12

    I have used Premiere and vegas in the past but they are not as easy to use.
    Well we can only complain. AVCHD wasn't intended for editing. Consumers won't stand for digital intermediates because they take too much disk space. That only leaves repeated recode and quality loss as an option.
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    What would happen if i converted the ACVHD clip to MPEG-2 at 24Mbps? I assume it would take up more space but what about the quality?
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  15. Member edDV's Avatar
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    Originally Posted by Mike82
    What would happen if i converted the ACVHD clip to MPEG-2 at 24Mbps? I assume it would take up more space but what about the quality?
    I'd go to a high bit rate MPeg2 for both editing and Blu-Ray. Try 35 Mb/s and see if quality holds better.

    Or convert and edit at 35Mb/s MPeg2 before recoding back to AVCHD for Blu-Ray.
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  16. Member edDV's Avatar
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    Interesting to see how Apple handles AVCHD. Apple as usual has one way to do things and all must conform.

    For iMovie they force a conversion to 960x540p to control intermediate file size and improve editing performance. Then they let you up res again to 1440x1080i for AVCHD export.

    For Final Cut Express and Final Cut Pro they force you to use the Apple Intermediate Codec.
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    Can't i just take the AVCHD and convert it to 24Mbps MPEG-2 after its been edited?

    note i don't want AVCHD thats the way it comes out of the cameroder at 24Mbps
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  18. Member edDV's Avatar
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    Originally Posted by Mike82
    Can't i just take the AVCHD and convert it to 24Mbps MPEG-2 after its been edited?

    note i don't want AVCHD thats the way it comes out of the cameroder at 24Mbps
    Yes you can. Or any other supported HD format.
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  19. Mike82 - you're planning on making a MPEG2 based blu-ray ?

    Just a quick reminder that you'll need ~1.4-1.5 x the bitrate for it too look the same as using h.264 . eg. a blu-ray made with h.264 ~17-18Mbps would need ~24Mbps for it to look the same if you used MPEG2. This means your running time will be that much shorter.
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  20. Member edDV's Avatar
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    Originally Posted by Mike82
    What would happen if i converted the ACVHD clip to MPEG-2 at 24Mbps? I assume it would take up more space but what about the quality?
    24Mb/s takes the same space MPeg2 or MPeg4.

    As said above, I'd go with MPeg2 with more bit rate to reduce recode loss.

    You are either trying to make files small or you are trying to preserve quality.
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    No i don't care what format its in. Its coming out of the camera at 24Mbps AVCHD and no edting software will export it out AVCHD at 24Mbps so i was asking what if after i edited the video in AVCHD i exported it to MPEG-2 24Mbps would there be any quality loss.

    Then i would burn it to a blu-ray.
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  22. Member edDV's Avatar
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    Once AVCHD is imported and converted, the original 24 Mb/s has nothing to do with what you export recode to. Generally, the higher the export bit rate, the less the recode loss. MPeg2 is supported at least up to 35Mb/s by Blu-Ray players. I'm not sure how high AVCHD bit rate can go.
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