Bit rate standards for Compressing video for Captivate

I have been trying to decide whether rto use constant bit rate or a variable bit rate when compressing my video to embed in Captivate.
I have been told by Connect support that a constant bit rate is better for deploying video in Presenter but I am wondering if anyone has information as whether that is also true for Captivate. We are using captive as a means to offer a series of video question and answer sequence for a client of ours, and I  am interested in  getting the best quality with the smoothest performance in a progressive download flv format
For a simple talking head I am tempted to use a variable bit rate but, I cannot find anything in the seaces I have made that talk about the spec or any pros an cons to that quetsion for Captivate.
Doee anyone have any expereince with that?

I have always used constant bitrate for videos imported into Captivate and that has worked fine. However, I never tried using variable bit rate so I don't know if it will work better or worse.
My guess is that it would be better to go with constant bitrate though because Captivate do have some funny issues with FLV's sometimes and it's probably better not to "stress" captivate ;o)
/Michael
Visit my Captivate blog with tips & tricks, tutorials and Widgets.

Similar Messages

  • What are the best data and bit rate setting for uploading from final cut express to Youtube?

    Can anyone suggest the best data rate and bit rate presets for uploading footage from final cut express 4 to Youtube? What settings will provide the best resolution, quality, and match the current youtube requirements?
    Thank you in advance for your help,
    Susan Kayne

    It depends on whether you are using aspect ratios of 4:3 or 16:9.
    Below is some simple guidance that will provide good quality with reasonably small file sizes.
    The first part is for 4:3 video:-
    1. File>Export Using QT Conversion.
    2. The "Format" window should say, "QT Movie".
    3. In "Use" select "LAN/Intranet" from the dropdown menu.
    4. Click "Save" and when it has finished encoding, upload it to YouTube.
    If you are making 16:9 video (Standard or High Definition) do steps 1 to 3 above.
    Then when you have selected "LAN/Intranet" press the "Options" button and in the new
    window that opens press the  "Size"  button and change the  "640x480" to  "853x480"
    To do this you will have to click on the  640x480 and a dropdown menu appears.
    Select "Custom" from  the bottom of the menu and in the window that opens
    you will see 2 boxes.
    Put  853  in the first box and  480  in the second.
    Click OK.
    Then Save it.

  • How to set bit rate of audio and video

    I want to set the bit rate of audio and video (48,96.128 kbps) at the time of live streaming . i m not using the flash media live encoder because i have to make it as web applicaton. can any one tell me how to set bit rate.

    When you're using Flash Player to capture and encode video, your only control is Camera.setQuality():
    http://help.adobe.com/en_US/AS3LCR/Flash_10.0/flash/media/Camera.html#setQuality()
    Jody

  • Bit Rate settings for compressing to iPhone

    Hello-
    I have Compressor 3.05 and I'd like to use a bit-rate setting that is not available in the Apple-provided iPhone presets. I'm looking for something around 150. Is there a way to create a custom preset for iPhone compatible video? I can't seem to figure this out.
    Thanks,
    Mark

    Yes there is!
    *Step 1:* Create a preset will all the other settings how you want them. In my case I started with File Format: H.264 for Apple Devices, Device: iPhone (Local/Wifi) Drag the data rate down as low as it will go (700Kbps). Save it as a new custom setting.
    *Step 2:* Those are stored in User>Library>Application Support>Compressor open the preset you just created (it will have the same name) in a text editor, I used TextWrangler. Find the second <data-rate> (the first one is for audio) the number in there should be 87500. Lower that number to the desired amount.
    *Step 3:* Save the file. Go back into Compressor and then apply it to your source video.
    That should do it!

  • Constant Bit Rate CBR for HD

    Why is there no option for HD MPEG-2 streams with a constant bit rate (CBR)? This is standard across broadcast formats, so why no option? And why no answers to this question? It's been asked for some time here.

    Why is there no option for HD MPEG-2 streams with a constant bit rate (CBR)? This is standard across broadcast formats, so why no option? And why no answers to this question? It's been asked for some time here.

  • Max Bit Rate of Audio and Video supported on iPod?

    Hey
    I've been having issues putting certain videos on my ipod... I've made sure the video bit rate is under the max.
    However, I'm not sure... does the max bit rate of the audio played during videos have to be under 160 for the acc audio?
    I have it at 192... which has worked with other videos, but not some.
    If this is true, let me know. Thanks
    n

    Yes, but it's vague. Is it:
    Mpeg4
    2.5mbps Video Max
    160kbps Audio Max
    They're doing weird things with semi colons, I don't know which format it belongs to.

  • How to determine the bit rate with button over video subtitles?

    I have a project where I've got several questions that come up on the screen. The DVD is subtitled in 14 languages, so depending on the language chosen, it will show the question in the proper language along with navigation buttons to go to the next question or track.
    The problem is this: I added several new questions that each have a black only video that runs about 1min with 14 subtitle tracks made from photoshop psds. When I try to build, it fails saying "bit rate too high." When I removed all but 5 of the subtitle tracks, then it would build. I came up with a workaround, but then hit the limit of 99 tracks, menus or stories on a DVD.
    I went back and tried combining all 3 questions in to one slide, but now with more information on the psd, it will only allow 3 subtitle tracks before it reaches the max bit rate.
    How does it determine the bit rate? What can I do to lower the rate? I tried compressing the video at the lowest bitrate, but it didn't' help. I tried changing the psds to much smaller jpg files, but it didn't change anything. If anyone has any suggestions, please let me know!
    Thanks.

    CS,
    Almost all DVD SP Tracks should first be completely constructed in a Sequence in FCP, the markers placed there, and then everything encoded into a single Mpeg 2 clip with matching length audio (even if just low bit rate AC3 silent audio, as the case may be, because all Mpeg 2 clips in the Title domain should be accompanied by an audio stream), and then imported into DVD SP.
    Lay your subtitles under that and see what happens.
    Take care,
    Trai
    TFDVD Research Labs

  • MuVo N200: recording fidelity and bit-rate for podcasts

    Hi,
    My plan is to use my MuVo N200 for recording podcasts--I'm wondering what the fidelity and bit rate is for the line-in recording capability.
    Is it 64k bps? Something else?
    Any one else using the line in?
    Thanks,
    Larry

    See here.

  • Adjust bit rate on movie replay

    When I go to YouTube to view videos on my PB G4, I can adjust the streaming bit rate from 480 to 360 to 240. I need to play at 240 on my unit in order to keep the video clip streaming without halting, probably due to my limited RAM capacity of 1.25 mb.
    When I view videos on other sites, I cannot find a bit rate adjustment in the video box, and most of the time, the video playback is halting and stuttering. Is it possible to adjust the bit rate on my computer screen another way?
    Thank you

    This is very interesting isn't it !
    I have had a similar problem in porting audio between STP & Pyramix, a PC based DAW - often files that I have exported from STP will be recognised as 32 bit files in Pyramix, resulting in gross distortion, and a totally unusable file. This is most frustrating.
    I really have no idea what is happening, but believe it must be to do with the way STP handles audio. Another observation is that if you look at a .STAP file in windows explorer, you will see some interesting things - mainly that it is not a "file" more of a directory, containing for example:
    a) the audio file
    b) an effect file (if you've got some effect on it, or have spliced it etc)
    c) a Metadata file
    d) and a render file
    Perhaps this has something to do with STP wanting to change the wordlength of the audio that it is handling ???
    Anyone ???

  • Export Settings - Minimum Bit Rate Question (MPEG2-DVD)

    Hi,
    Curious...just came over recently from FCP and I don't remember Compressor giving me an option to adjust the MINIMUM bit rate when exporting HD projects for DVD. I figured I'd just leave it where the preset has it (at 2.8mbps minimum)...BUT...then I hovered over it and saw an interesting popup/explanation of what it does which kind of confuses me. It says:
    Higher values set a higher minimum quality, but reduce quality of more difficult scenes.
    The first part makes sense so I figured I'd raise it...but then the second part makes me think I should keep it low. Sort of confuses me. Any thoughts??? FYI: My projects are Weddings with a fair amount of action, etc.
    Normally, these are my settings depending unless I can't fit the project onto the disc in which case I adjust:
    DVD
    CBR at 7.5mbps
    ...or...
    VBR 2pass
    Target Bit Rate: About 6.8 or 7mbps
    Max Bit Rate: Usually 8mbps
    BLURAY
    VBR 2pass
    Target Bit Rate: 25mbps
    Max Bit Rate: 30mbps
    Unless someone tells me that I should raise these settings higher for better quality output (if the project size allows of course) these are what I've been using to get maximum quality out of my videos without jepordizing playback due to bit rate max for each media (which I think I read was 10mb and 40 or 50mbps respectively. I was just thrown by the minimum bit rate description above.
    Thank you in advance for your help!

    The whole notion of a minimum bitrate is crazy unless you have specific broadcast requirements that require you to pad out video to keep the connection alive.
    If the encoder can express the image with zero loss in less than the minimum bitrate why would you pad it with zeros to get the bitrate high enough to meet the min?
    The idea of a nominal/average bitrate is easy to understand.
    The Maximum bitrate is often misunderstood though.
    On some encoders the max rate sets the wiggle room (max - average) that can be used if there is a burst of required information.
    On other encoders it sets the maximum rate at which the video buffer is allowed to fill as per the specifications. eg Blu-ray is capped at 40Mbps. The Video encode itself MAY EXCEED THAT 40Mbps for a split second but will only LOAD into the video buffer at up to 40Mbps.
    For example, if you set constant bitrate at 20Mbps and no Maximum rate when the video first starts loading from the blu-ray disc to the video buffer it loads faster than the blu-ray maximum of 40Mbps. Thus you MUST have a maximum rate defined (for blu-ray compliance) even though it's a constant bitrate. Some encoders do this for you but some leave it up to the user to get right (and thus should provide a max slider and constant slider to set both).
    Jeff- absolutely agree. It's very rare that you need to use all 40Mbps available to you. 20 and 30 can look great (depending on the detail in the sceen and how much motion there is).
    VBR 2-pass does have value if you're trying to get down to lower rates like 10Mbps to fit a long title on a disc. If you don't action shots with sceen cuts will leave artifacts as they are bit starved.
    I'm actually a big fan of Constant _Quality_ (CQ) vs CBR or VBR. You then know what quality you're going to get on every frame and from experience will know how big it will come out to be. CQ is also considerably faster to render because you have no rate control computations to do. x264pro has a CQ option for this very reason.
    hope that helps.

  • Audio bit rate (kbps) and file size balance

    I'm new to Flash, and I'm trying to decide how to set the bit
    rate (kbps) for my audio files.
    I'm creating PowperPoint-like presentations with voice audio.
    You can see what I'm doing at
    http://preparatorychemistry.com/Bishop_Audio_Book.htm
    I first decided on 16 kbps, but I'm not happy with how it
    sounds, especially through headphones connected to the computer. My
    presentations, of course, sound better with higher bit rates, but
    file sizes roughly double for each doubling of the bit rate. At 16
    kbps, my files range from 1-3 MB, so for 32 kbps (which I'm leaning
    toward now), they are 2-6 MB. My questions are
    What's the concensus on the best bit rate for Internet sound
    files, especially voice?
    How important is it to minimize files size? The files are
    already large enough so that dial-up folks will probably not listen
    to them, and even the larger files seem to download fast enough
    with my cable connection.
    Thanks for the help.
    Mark

    Chemistry guy wrote:
    > I'm new to Flash, and I'm trying to decide how to set
    the bit rate (kbps) for
    > my audio files.
    >
    > I'm creating PowperPoint-like presentations with voice
    audio. You can see what
    > I'm doing at
    >
    >
    http://preparatorychemistry.com/Bishop_Audio_Book.htm
    >
    > I first decided on 16 kbps, but I'm not happy with how
    it sounds, especially
    > through headphones connected to the computer. My
    presentations, of course,
    > sound better with higher bit rates, but file sizes
    roughly double for each
    > doubling of the bit rate. At 16 kbps, my files range
    from 1-3 MB, so for 32
    > kbps (which I'm leaning toward now), they are 2-6 MB. My
    questions are
    >
    > What's the concensus on the best bit rate for Internet
    sound files, especially
    > voice?
    The best is the import high quality sound in wav format. Than
    in library you can
    play around with m3p compression changing the rates and all.
    Checking the quality
    versus the file size and find one that suit your needs. There
    is no BEST format to
    import. Every single fill have individual setting. It's all
    depends on the sound.
    Like, in case of voice. Very different to other sounds.
    Save it as ADPCM (adaptive pulse code modulation) or Mp3
    9kbps as your second choice.
    Also take note that STREAM always lower down the quality , it
    suppose to load fast so flash reduce
    it enormously , usually sound like pure crap, go to library
    (CTRL L to open) right click your sound
    and go to properties, adjust the compression and type of
    audio format to find best size and quality...
    > How important is it to minimize files size? The files
    are already large enough
    > so that dial-up folks will probably not listen to them,
    and even the larger
    > files seem to download fast enough with my cable
    connection.
    You would be surprised. I was doing voice overs two or 3
    weeks ago for a client.
    Needed 5 sounds , up to two minutes each, for different
    slides. Ranging from 2.5 MB
    to 2.9 MB per file.
    After compressing all of them, I had 5 sounds in very good
    quality of total size 1.4 MB
    Best Regards
    Urami
    <urami>
    If you want to mail me - DO NOT LAUGH AT MY ADDRESS
    </urami>

  • H.264 bit rate, quality

    Is it possible to adjust the max bit rate / quality for a custom screen size
    (e.g. 480 x 270) using the Adobe Media Encoder? The default sizes seem set
    the bit rate, but I want to use a custom size and select a bit rate. Not
    quite sure how to dial in the file size and video quality.
    Best,
    Christopher

    > Broad? Use Flash or Quicktime. I prefer Windows Media but we have to take
    > care of our poor unfortunate Mac brethren who can't play anything Steve
    > Jobs disapproves of.
    On my system (Windows XP Pro SP2, Premiere CS3) any attempt to use flash
    (either On6 or Sorenson) immediately crashes Premiere.
    Quicktime colors are washed out and lacks contrast.
    Using video from a Canon XL H1 and Aspect HD, Windows Media looks great.
    Excellent colors, contrast, and detail.
    Any suggestions on how to get Flash to work and how to improve the colors in
    Quicktime?
    Best,
    Christopher

  • Maximum Bit Rate help

    I have been trying to find the best bit rate settings to display from a USB drive on an Xbox 360 or PS3.  I found the recommended settings but the maximum bit rate that I set it at, is always exceeded during playback.
    For example if I am using the h.264 codec with the bit rate settings of VBR and the maximum bit rate set for 10 Mbps, my bit rate will always spike way higher then 10 Mbps during scenes with more movement.  A scene where I'm pointing my camera out of a moving car with houses going by displayed a bit rate of 38.8.  In case anyone is wondering I use the bit rate counter on my PS3 to find the bit rate at any give time.
    Now When the bit rate spiked at 38.8 for that scene, it dipslayed fine on my PS3, but when played back on my Xbox it stutters a little at that moment. 
    If I use a CBR of 10 Mbps the bit rate still goes quite a bit over 10 Mbps but didn't approach 40 Mbps like it does when using a variable bit rate.  When using a CBR it played back flawlessly on both devices but there was a little drop in quality.
    Is there something I am doing wrong or is this just how it works?  I assumed the target bit rate is what you are shooting for and the maximum bit rate would never be exceeded.  Is that not the case?

    I took that it could be inaccurate in to consideration but when I play a blu-ray back the bit rate usually fluctuates between 25-35 Mbps so I assumed the readings were pretty accurate. 
    I'll try the VLC player as you suggested when I get home.  Does it show you the bit rate during playback, the average bit rate, or what?
    Also if I set my maximum bit rate to 10 Mbps should it never exceed that?

  • No E-Mail Updates or High Bit-Rate Audio Using WiFi

    When I use WiFi and click on the mail icon, my 3GS will not update my e-mail messages. The network activity icon just keeps going and going. Additionally, I cannot get audio streams over 128k on apps such as Wunderradio. Everything works fine on 3G networks and I have enabled the high bit rate option for the apps that have such an option.
    The two problems happen on all Wifi networks, so the problem isn't my home network
    Anyone else have this problem or know how to fix it?

    Yes. I am able to surf the internet and do everything else except for the two problems I outlined in my original post. The icon switches from 3G to the WiFi "fan". Using the Speedtest.net application I have checked my WiFi connection and it is usually at 4,400 kbps download and 1,000 kbps upload.
    In case someone asks: I am using an att.net e-mail account, but have also tried my comcast.net account with the same results.
    Message was edited by: Chip_Nashville

  • TS5181 iTunes radio - Bit Rate and recording

    There is an ongoing comparision to Pandora however, I suggest that Pandora offers a better value by far:
    1. iTunes Radio does not state bit-rate
    2. Pandora One is 192kb for $40/yr, with no adds; free Pandora is 64kb and has adds
    3. PandoraJam permits recording to Mac, $15 one-time cost, 192kb unlimited downoads
    4. iTunes Match, at $25/yr, permits saving current and paid misic to iCloud plus no adds, but STILL charges $1.29/song.
    NOTE: I am pro Apple and nearly all my IT devices are Apple however; this is a difficult business case.
    Can anyone tell me why iTunes Radio would be a better deal?

    I'm curious as well what the bit rate is for iTunes Radio and am suprised Apple hasn't published it. 
    Forbes.com is doing a followup story soon which will compare iTunes Radio, Spotify and Pandora that you may want to check out. 
    http://www.forbes.com/sites/amadoudiallo/2013/09/18/apple-releases-itunes-radio- a-pandora-alternative/
    Amadou Diallo, Contributor 1 day ago
    Apple has a history of withholding geek-oriented specs on consumer-oriented products. By their silence I think we can assume that it’s not higher than what Pandora’s max setting offers. And it certainly wouldn’t make sense for the rate to be greater than the 256 kbps of iTunes purchases.
    There’s also the possibility that Apple is offering adaptive rates depending on whether a user is connected over WiFi or cellular.
    I’m working on a story comparing aspects of iTunes Radio, Pandora and Spotify (stay tuned) and I’ll report on whether there’s an audible difference between them.
    Also found a post on Macrumors by someone who did their own "test" yesterday who is suggesting that it is 256 kbps similar to what you get for iTunes purchases. 
    http://forums.macrumors.com/showthread.php?t=1639713
    Money and "value" aside, I've been listening to iTunes Radio for a day now on my Denon AVR and B &W surround sound system via airplay streaming to my AppleTV and it sounds as good as Pandora One -- and I think the playlist alogorithim is superior to Pandora as I'm hearing a bunch more variety and music I like on a station I created similar to one I have on Pandora.

Maybe you are looking for