Bitrate video Quality

Hello, I'm broadcasting live video using FMS , what bitrate should I use to broadcast in low or medium or high video quality, I'm using this AS3 code:
camera.setMode(250, 180, 15, false);
camera.setQuality(350, 50);
camera.setKeyFrameInterval(30);
microphone.rate = 11;
microphone.setSilenceLevel(0);
Thanks

There is a tutorial on the proper settings for AC3 encoding at; http://www.kenstone.net/fcphomepage/a_packwarmouth.html
The tutorial is on A.Pack, which has been since folded into Compressor, but the settings are the same. If its done right, the ac3 file will sound identical to the PCM file.
BTW when you provided audio samples for the client to listen to did you tell them, "This is the compressed ac3 file, and this is the PCM file." Or did you correctly tell them, "Listen to these two files, sample A and sample B, and tell me which sounds better, or do they sound the same." And obviously you cannot have them look at the files because one will be significantly smaller than the other.

Similar Messages

Video Bitrate too high, even reducing video quality

I'm having difficulties on building a DVD9 that I need to send to the factory.
Even though I reduced the video quality from 6.6 to 6.4, the problem still happens.
Does anybody have any idea of how to make this thing build, without converting the 2.0 audio to .ac3?
Is the problem, anyhow related to the Max Bitrate, on VBR?
If yes, using a 6.5Mbps CBR will my problem be solved? The quality of the video will be harmed? How bad?
Here are the specifications:
Space occupied: 7.3 GB
Main video:
Duration: 85'
Encode: mpeg2 One pass VBR
Average Bitrate: 6.4Mbps
Max Bitrate: 7.5Mbps
Audio: 2.0 PCM
5.1 Dolby .ac3
Making of:
Duration: 15'
Encode: mpeg2 One pass VBR
Average Bitrate: 6.3Mbps
Max Bitrate: 7.4Mbps
Audio: 2.0 PCM
Menus
3 motion Menus with .ac3 audio
3 static Menus with .ac3 audio

There is a tutorial on the proper settings for AC3 encoding at; http://www.kenstone.net/fcphomepage/a_packwarmouth.html
The tutorial is on A.Pack, which has been since folded into Compressor, but the settings are the same. If its done right, the ac3 file will sound identical to the PCM file.
BTW when you provided audio samples for the client to listen to did you tell them, "This is the compressed ac3 file, and this is the PCM file." Or did you correctly tell them, "Listen to these two files, sample A and sample B, and tell me which sounds better, or do they sound the same." And obviously you cannot have them look at the files because one will be significantly smaller than the other.

Publish+Share signifcantly reduces video quality in Premiere Elements 13

As the title states, whenever I publish and share a video in Premiere Elements 13, the video quality is drastically reduced to an almost unwatchable level compared to the original video This is even the case before any effects are added to the video. If I add the media to the timeline and then directly publish+share before any changes are done, the video quality is still ruined. When I click play full screen in elements, the quality and resolution is exactly where I want it, but once again, when I share the video, it's essentially destroyed.
When I play the newly created video there is giant black space above, below and to the sides of the video (where there is none in the original) and movement in the movie causes the video to grain with black lines.
I have been playing around with settings and researching online for a long time now but I can't seem to find the solution. What I have been doing is going publish+share, ---> Computer, ---> AVI. Then in advanced settings the video codec is selected to DV NTSC, and the basic video settings which are locked in (which I can't change) are set to quality 100, width 720, height 480. The Aspect is D1/DV NTSC (0.9091). I have selected render at maximum depth. I have also tried saving it as MPEG and other video types but the result is the same.
Any help would be greatly appreciated. I understand that I am new and have lots to learn, but it seams so strange to me that the simple process of putting a video in Elements would essentially destroy it. Thanks again.

HSTompson
It was not until Mary Lou Frost posted in your thread today that I realized that I did not see and reply to your questions in post 4 of your thread (dated December 15, 2014). Sorry about that.
If you want to match up the properties of the export file with the properties of the Timeline source media, often you need to direct your attention to
a. Publish+Share/Computer/......and trying to match up the video (especially) and audio compressions of the import with those of the export choice.
b. A frequent cause of a difference between import file size and export file size is the bitrate used by these files. The higher the bitrate, the greater the quality, but
the larger is the file size. So, trying to match import file and export file bitrates is also on the agenda. See the preset's Advanced Button/Video Tab and the settings
there for bitrate. The units for bitrate will be either kbps kilobits per second (also seen as Kbps) or Mbps megabits per second. We can go into that further if necessary.
Premiere Elements allows for the setting of one project preset which should match the properties of the source files. If you have "mixed source files", setting up the
project can become a challenge. The rule of thumb that I typically use involves setting priorities...
1. If videos and stills, I will set for the properties of the video and then size (or let the project size) the still to the frame size of the video
2. If just stills, I try for 1920 x 1080 stills and import them using a DLSR 1080p project preset...that seems to give sharper end product results when doing burn to disc.
Please review and consider and let me know if I have targeted your questions. Any questions please do not hesitate to ask. I try to respond daily to questions, so, if you do not see a timely, response, please send me an Adobe Forum private message asking me "What happened to you?".
Best wishes.
ATR

Very poor video quality after transcoding in Adobe Encore CS5.1

MERRY CHRISTMAS AND A HAPPY NEW YEAR!
I have very poor video quality after transcoding the video file (MPEG) in Adobe Encore CS5.1. Below you see my used settings in my filmproject.
The problem exists after transcoding in Adobe Encore CS5.1. I checked all steps and found out that there is no problem until transcoding. My exported file in MPEG has very good video and audio quality.
Facts:
1. Camcorder: Panasonic AG-AC160AEJ
Operating System : Windows 7, 64 Bit, Ultimate edition
Source files: MTS files
Recording settings (clip settings):
Type: MPEG Movie
Image Size: 1920 x 1080
Frame Rate: 25,00
Source Audio Format: 48000 Hz - compressed - Stereo
Project Audio Format: 48000 Hz - 32 bit floating point - Stereo
Pixel Aspect Ratio: 1,0
2. Sequence settings in Premiere Pro
Sequence was created from Clip directly with settings above.
3. Exporting settings in Adobe Premiere Pro:
Match sequence settings was activated. Now other changes were set.
4. Exported File:
Video
Image Size: 1920 x 1080
Data Transfer Rate: 25920 kBit / s
Frame rate: 25
Audio:
Bit rate: 384 kBit / s
Channels: 2 (stereo)
Frequence: 48 kHz
5. Transcoding settings in Adobe Encore:
I used different transcoding settings such as automatic DVD Transcoding, CBR and VBR.I also set “use maximum render quality”. But all results were always the same: very poor quality.
Why does the encore transcoding cause such bad video quality?
How can I solve this problem?
Please help me soon.
Best regards.

Hi Ann,
1) I did not only „Automatic (based on source)“ options in my tests, but also many other customized options.
The results are very poor. I have done a new test with the following settings. The result is also poor:
Download link: http://www.klavierlehrer-bayern.de/download/test_mpeg2dvd_1.m2v
Export Settings:
Format: MPEG2-DVD
Preset: Custom
Codec: MainConcept MPEG Video, Quality: 5
Frame Rate: 25 fps
Field Order: Upper
Pixel Aspect Ratio: Automatic (based on source)
Render at Maximum Rate: [active]
Bitrate Encoding: VBR, 2 pass
Minimum Bitrate (Mbps): 5
Target Bitrate (Mbps): 9
Maximum Bitrate (Mbps): 9
GOP Settings
M Frames: 4
N Frames: 12
Use Maximum Render Quality: [active]
Multiplexer: None
2) Why shouldn’t I use the “Match Sequence Settings” in exporting? Because of the big output file size?
I used it and the results are very good as I expected:
Download link: http://www.klavierlehrer-bayern.de/download/test_MatchSequenceSettings.mpeg
Export Settings
Match Sequence Settings [selected]
1920 x 1080, 25 fps, Upper, Quality 50
User Maximum Render Quality: [active]
3) I tried also Dynamic Link in PremierePro (to Encore).
The results are also poor.
4) I will test also LagarithLoslessCodec and frameserving +DGMPGDec. But the video is vertical long drawn-ot.
I think I did not use it correctly.
Regards

Apple tv video quality vs hd tv and high def dvd's

ok...i know it supports 1080i, but does the video quality of video in itunes really look good compared against say a blu-ray disc, or hdtv signals? i'm sure it will get better (with a hardware or software upgrade?) if its not close to high def quality but want to know what i'm in store for if i buy appletv now...thanks. PS: i currently have directv HD and a ps3 for blu-ray, and my tv's are all HD...

Based on my own testing, the distinctions between an HD-DVD movie (which are true 1080) and an Apple TV video converted as its own maximum settings (which is 720) is actually quite noticeable if you have a 1080 TV set, but at the same I don't consider it a show-stopper. I watch a lot of HD broadcast content that's only 720p, and it's still very good.
An HD-DVD or Blu-Ray DVD will normally be in 1920 x 1080 resolution (1080p or 1080i, generally depending on your equipment). The Apple TV's maximum resolution is 1280 x 720 (basically 720p). Therefore, even an original HD-DVD or Blu-Ray DVD converted to Apple TV will need to be scaled down to 720p for display on the Apple TV.
Further, Elgato EyeTV actually scales these down somewhat lower, so HDTV recorded content could be even worse-off, depending on the original source. The standard Apple TV export settings use a 960 x 540 frame in order to keep the bit-rate and frame rate within tolerances (since a 720p signal is approximately 60fps, and the bitrates will generally exceed 5-6 mbps, which pushes the limits of the Apple TV).
Even more interestingly, Elgato's new turbo.264 dongle will only encode in "Apple TV" format at a maximum resolution of 800 x 600 (and if you do the math you will realize that this will be considerably less for a 16:9 aspect ratio video).
The result is that videos converted from an EyeTV Hybrid are technically much worse off on the Apple TV than viewing the original source material. Whether this is significant enough to be noticeable will depend on your output medium, but on my 62" DLP, the difference is quite apparent (although still far superior to an SDTV signal).
You can get 1280 x 720 content to play back at 60fps at 5mbps bit-rates on the Apple TV by using ffmpeg-based encoders and manually selecting higher settings, although it's been hit-and-miss in my own testing, and of course it creates gargantuan files. Elgato and others have obviously tried to stay with the more conservative settings to ensure that they can guarantee the broadcast possible range of support.
In fact, although most of the standard encoder settings max out at 2.5-3.0 mbps, I've successfully pushed up to 6 mbps through the Apple TV, although such content has to be synced rather than streamed, since even an 802.11n network has a hard time keeping up (it worked, but there were some drop-outs and glitches in the process). Of course, 6mbps content is going to fill up the Apple TV hard drive pretty quickly as well (you'd only be able to fit around 11 hours on the internal 40GB hard drive).
The other thing to keep in mind with DVD movies is that they come from film, which is a 24fps source (based on the physical nature of film). As a result, the distinctions between a 720p and 1080i signal are less prevalant when dealing with film content, since you won't get the full 60fps HDTV capabilities anyway. Interlacing can still create some nasty side-effects, but it's far less of an issue when you're dealing with less than half of the normal frames.
In my own experiences, I have an Apple TV that is connected to a 1080p upscaling DLP TV (native 1080i input, internalized de-interlacing), and a second Apple TV that is connected to a 720p LCD TV. With the first Apple TV, I can notice the difference between 720p and 1080i output settings only when viewing photos, since the remainder of the standard content doesn't exceed 720p anyway. Further, because my TV de-interlaces a 1080i signal to 1080p, I don't get the flicker that is normally associated with a 1080i signal.
On the second Apple TV, I leave the setting to 720p, since that's the native resolution of the second TV, and I get noticeable interlacing-based flickering on the 1080i, particularly with photo slideshows (mostly in the transitions).

My clips have a yellow line on the timeline sequence. Does this affect my video quality output if I don't render?

I use Adobe CS 6 to edit and I use Sony NX 3 to record. Every time I import my clips. It has a yellow line on the timeline sequence, even when I make new clip from the sequence.. My question is, does this affect my video quality output if i did not render the yellow line out? Please someone help me

Please see this link for more info about red and yellow bars - http://blogs.adobe.com/premierepro/2011/02/red-yellow-and-green-render-bars.html
If you shoot 1080p, you will likely have better results going to DVD than if you start with 1080i. It's hard enough downscaling with decent quality, then if you add in interlacing issues...
When exporting from Premiere to create a DVD, choose "MPEG-2 DVD" as the format, and then choose a preset such as "NTSC Widescreen Progressive".
There is a checkbox at bottom of export window for "Max Render Quality" - use that for best downscaling results.
Use 2-Pass VBR encoding. Use a bitrate calculator to determine best bitrate for length of movie, or quick option is 560/minutes = bitrate. But don't exceed 8.0 on shorter movies. I typically round down a little for safety margin, such as 560/120 = 4.6, encode at 4.5 and no worries.
The export will result in TWO files, .m2v video and .wav audio, import both into Encore for authoring. Encore will convert the .wav to Dolby AC3, reducing file size. Video should NOT get transcoded. And as others said, don't expect HD quality when viewing a DVD...definitely not HD video any longer. But do be sure to use an upscaling player, this makes all the difference. If you run a yellow composite cable from DVD to TV, it will look horrible. Use HDMI with upscaling DVD/Blu-ray player for improved result.
Good luck
Jeff Pulera
Safe Harbor Computers

Airplay Video quality and buffering

I'm new to apple TV and am trying to watch my home movies (holidays etc) over airpay. However, I've found that if I try to watch in Full HD there's a considerable amount of buffering (2-3 mins) before the movie will start to play, and if I skip if buffers again. Basically is seems any file over 1.2GB struggles. I can convert the video using a lower bitrate etc which reduces the file size, but then obviously you lose quality.
Is there a way of playing Full HD video of large file sizes without buffering, or a way of compressing the video files without losing picture quality? I've tried MP4 and .MOV but the file sizes are very large.
TIA

Thanks for the help, but this did not solve my problem. I have found a workaround though which is satisfactory.
What I've found that ideally the bitrate needs to be around 15, 20 and above it struggles regardless of file size. I tried converting with wondershare with a lower bitrate (eg original bitrate 23, converted 15) but the quality was noticeably worse. I tried passthrough using quicktime pro 7, but as you'd expect the bitrate didn't alter.
What I found by trial and error was to open the original .mov file using quicktime player 10 (10.2), go to file > Export and in the format dropdown select 1080p. The exported movie has a lower bitrate with no/VERY VERY little loss in video quality. These then play over airplay with no lag/buffering

Video quality with flv component

Hi,
I'm trying to improve the reproduction of a video incorporated into a website. The original .mov was 60 MB at 1280 x 720px. Using the Adobe media encoder I converted to FLV ( to add cue points for several small mc animations) and reduced dimensions to obtain filesize of 12MB. Video was brought into the SWF with the flv component. File loads quickly enough online- not too much in the way of delays waiting for video to start etc, however the reproduction is a little jumpy in several places and a little out of sync. I'm wondering if this is completely a result of the conversion process or whether the flv component might also be struggling with this filesize. I believe there is a FLVPlayback 2.5 component I released after my flash version CS4. Could anyone advise if I would gain improvements in the reproduction if I used this instead ?
Also - throughout the video I appear to have gained what looks like borders around the video, but only on the left and right sides, not all the way around (see screenshot). I'm not entirely sure whether this is a result of the conversion process with the adobe media encoder or whether this is something which has resulted within the flash file. And also on the last frame, the background colour of the video is completely strange. I had set to match the webpage, however as you can see in the screenshot attached, there's a strange graduation in colour that simply does not make sense to me - I would very much like to resolve as it looks very unprofesional.
Grateful for any assistance with any of the above issues
Thanks so much in advance !

On your first point of quality and file size, they are really un-related. Only when you concider the video bitrate and display dimensions can you judge whether a particular file size will result in a good quality or poor quality video. The FLV Playback component really does not affect the quality one way or another.. it only displays what it's told to display. If you have other issues like
"however the reproduction is a little jumpy in several places and a little out of sync"
it's more likely that something was introduced during the conversion process.
But first, a little review of video bitrate:
Video bit rate
One of the principle of goal setting is to "Begin with the end in mind". In this case it'll be very hard to give good recommendations because the end is not defined. So I'll just make a few assumptions and you can correct me as needed.
First, I'll assume that since you are converting to Flash, you want to deliver this video over the Internet. If that's true, then we'll have to make some assumptions on the Internet connection download speeds of your potential viewers. Let's just say that most have at least a 1.5Mb connection or faster.
OK, that would mean that a video bitrate of half that should usually provide a video download that is not interupped by buffering (most of the time anyway). So assuming a video bitrate of 750kbps, what would the optimum display dimensions be?
Before we decide, here's a little info about bitrate. For highest quality playback, the video bitrate is tied directly to the display dimensions. That is, the larger the display, the more incoming data is required to properly display the video. Think of bitrate in terms of a can of paint. If you have 1 quart of paint, you might be able to do a very nice job on a 32 X 24 foot area. But if you try to stretch that same amount of paint out over a 64 X 48 foot area, the coverage will not be nearly as good and you get poor results.
In the same way, a video displayed at 640 X 480 pixels will require 4 times the bitrate as a video displayed at 320 X 240 pixels to produce the same quality. So for example a video with a bitrate of 100kbps, displayed at 160 X 120 will produce the same quality results as a video with a bitrate of 1600kbps if displayed at 640 X 480.
So to boil it all down, video bitrates of 750kbps, even up to 1000kbps can usually get delivered of the Internet on most high speed connections. Higher bit rates may work for really fast connections but will cause problems for viewers with slower connections. Video display size has a direct bearing on the final quality. In the 750 to 1000kbps range, display size should be kept around 450 or 500 width max (and whatever height the aspect ratio calls for). Yes it can be displayed larger, but the quality will suffer.
Sound like your audio settings are fine, especially for Internet delivery.
As for framerate, maintain the original raw video framerate for best results. So if the video was shot at 24fps, leave it.
As for video converters, do you have the Flash 8 Video Converter? It works just fine for video to be delivered over the Internet. Remember, you are taking a Cadillac version of video (h.264 HD) and stuffing it into a Chevy body to get it to work over the Internet.
As for slight borders in the display, it's most likely that somewhere in the conversion process or setting the dimensions of the FLVPlayback that the display/video dimensions got mismatched... even by a few pixels. So video is 480 x 360 while FLVPlayback is 480 x 356 or something like that. There is also the possibility that the FLVPlayback is trying to maintain the correct aspect ratio but the dimension is just a little off. So if the display is a little too short for the width, you could get black bars on either side. If the display is a little too narrow for the height, you will get black bars top and bottom.
So play with the display dimensions and see if you can correct it. If you can't, it may be in the video itself... test in another, FLV video player.
Best of luck on your project!
Adninjastrator

Video quality as low/high/HD

How to provide a video quality as Low, Medium, High and HD in flash actionscript. Thanks in advance..

Usually when discussing video quality, the "quality" is more or less a measurement of the amount of data that needs to continually flow into the video player to provide an uninterrupted display of the video. This is the video "bitrate".
So to provide 3 different "quality" videos, you need to provide 3 different video files, each rendered at a different bitrate (or displayed at different dimensions... see discussion below).
For example
Low: 400kbps
Medium: 1000kbps
High: 2500kbps
There is really nothing Actionscript can do to produce any of those. Controlling the bitrate is done in the video editing or transcoding software. Then you could create controls or buttons in actionscript to select between the separate video files.
More about video bitrate from this old post:
Video bit rate
One of the principle of goal setting is to "Begin with the end in mind". In this case it'll be very hard to give good recommendations because the end is not defined. So I'll just make a few assumptions and you can correct me as needed.
First, I'll assume that since you are converting to Flash, you want to deliver this video over the Internet. If that's true, then we'll have to make some assumptions on the Internet connection download speeds of your potential viewers. Let's just say that most have at least a 1.5Mb connection or faster.
OK, that would mean that a video bitrate of half that should usually provide a video download that is not interupped by buffering (most of the time anyway). So assuming a video bitrate of 750kbps, what would the optimum display dimensions be?
Before we decide, here's a little info about bitrate. For highest quality playback, the video bitrate is tied directly to the display dimensions. That is, the larger the display, the more incoming data is required to properly display the video. Think of bitrate in terms of a can of paint. If you have 1 quart of paint, you might be able to do a very nice job on a 32 X 24 foot area. But if you try to stretch that same amount of paint out over a 64 X 48 foot area, the coverage will not be nearly as good and you get poor results.
In the same way, a video displayed at 640 X 480 pixels will require 4 times the bitrate as a video displayed at 320 X 240 pixels to produce the same quality. So for example a video with a bitrate of 100kbps, displayed at 160 X 120 will produce the same quality results as a video with a bitrate of 1600kbps if displayed at 640 X 480.
So to boil it all down, video bitrates of 750kbps, even up to 1000kbps can usually get delivered of the Internet on most high speed connections. Higher bit rates may work for really fast connections but will cause problems for viewers with slower connections. Video display size has a direct bearing on the final quality. In the 750 to 1000kbps range, display size should be kept around 450 or 500 width max (and whatever height the aspect ratio calls for). Yes it can be displayed larger, but the quality will suffer.
Sound like your audio settings are fine, especially for Internet delivery.
As for framerate, maintain the original raw video framerate for best results. So if the video was shot at 24fps, leave it.
As for video converters, do you have the Flash 8 Video Converter? It works just fine for video to be delivered over the Internet. Remember, you are taking a Cadillac version of video (h.264 HD) and stuffing it into a Chevy body to get it to work over the Internet.
Best wishes,
Adninjastrator

Slideshow - Video Quality

I wish there will be some improvement in the video quality for "Export Video" from the Slideshow module of LR4. One of the main reasons I upgraded to LR3 was the Export Video feature. When I noticed the 'too-much' loss of image quality, I was disappointed but still have hope for future enhancement in the new version of LR. At least, it will be nice to offer an option to have higher bitrate or video quality in the LR4. So far, I did not see any changes in the Slideshow module at all. Hopefully, I just missed seeing it.

Sean, were you thinking of the EXPORT PDF feature when you mentioned about user preset? I was talking about the EXPORT VIDEO feature. If LR4 can offer similar setting (that can be changed by users) for both EXPORT PDF and EXPORT VIDEO, I think it will be a big step forward.
Another area in the slideshow module that needs some enhancement is the limitation of selecting ONLY ONE music file under SOUNDTRACK. Currently the only workaround I am aware of is to use an audio editor to link multiple sound files and create a much longer sound file in order to accumulate a relatively long slideshow.

Poor Video Quality on DVD Created by Encore

I am using Premiere Pro CS6 to edit video shot in 1280 x 720. I've linked the sequences from Premiere to Encore and created the DVD in Encore. I did not run the sequences through Media Encoder first but, rather, let Encore handle the transcoding and compression.
The video when viewed in Premier looks great. The video when previewed in Encore looks great. But the quality of the video when burned to a DVD is lousy. I believe that the video on the DVD is only standard definition, but still the text is blurry and the images are fussy and jagged, more than I expected. Is there something else I should be doing in Premiere or Encore to ensure a higher quality DVD?
Thanks,
Dan

Well, I thought I followed the advice I was given pretty closely but I am still having a problem. I volunteered to shoot video for a Special Olympics and was hoping to have already delivered the final video, so any help you might yet be able to offer would be appreciated.
For testing purposes I exported just 3 Sequences from Premiere into Media Encoder (total video length was less than 50 minutes) , transcoded them, and them brought them into an Encore project, but the resulting DVD is still of very poor quality. The video is noticeably blurry and a bit jumpy, and the text is also blurry.
I am viewing the DVD on a 42 inch LED TV. If I view the Media Encoded .m2v files directly from the computer (i.e., not using the DVD) on a large LED monitor they look pretty sharp. This leads me to suspect the somehow I am not using Encore correctly.
I will ultimately split the video in two, using 2 DVDs for different segments, so that the total across the 2 DVD is the original 100 minutes.
Here are my specs:
Original Assets
The original video was shot in 1280 x 720p.
My sequence timelines in Premiere were also 1280 x 720p
All lower thirds text was created in Photoshop at 1280 x 720
Media Encoder
All the video was exported directly from Premiere
Format: MPEG-2 DVD
Codec MainConcept MPEG Video
Quality (as automatically set by the slider) defaulted at 4.0
TV Standard: NTSC
Frame width/height: 720 x 480
Field Order: None (Progressive)
Pixel Aspect Ratio: Widescreen 16:9
Render at Maximum Depth: NOT CHECKED (I forgot)
Bitrate: VBR 2 Pass
Minimum: 4
Target: 6
Maximum: 8
GOP M Frames: 3 (default, I assume since I did not change it)
GOP N Frames: 12 (again, default, I assume)
Encore (all default settings as far as I know)
Only 2.1GB of a 4.7GB DVD was used
I burned directly to a DVD disk
Project Settings:
Authoring Mode: DVD
Television standard: NTSC
Codec: MPEG-2
Dimensions: 720x480
Frame Rate: 29.97
Fields: Lower First
Maximum Bitrate: 8.0 Mbps
Any additional help you can offer would be greatly appreciated.
Thanks,
Dan

Video quality downgrade after uploading to Youtube

Hey everyone, I've just started making movies and been playing around with video options for a few days and gotten past a few major milestones, however I just want to see how I can increase the video quality as the exported file doesn't look nearly as good once it's uploaded to youtube.
Quick notes about how I do it atm: First, I use FRAPS to capture video with Adobe Premiere 4.0 exporting my files as full 1900x1200 @ 29.97 FPS using the Windows Media Video 9 codec.
Encoding process: Two
Bitrate mode: Variable Unconstrained
Pixel Aspect ratio: Square
Decoder Complexity: Auto
Keyframe Interval [seconds]: 5
Average Bitrate[kbps]: 10,000
Exported video looks fine, however when I upload to youtube the quality really downgrades...viewable and correct resolution but still crummy for such a great looking vid. Hoping someone can help me out here! Thanks in advance.
Source video: http://www.youtube.com/watch?v=avzzkywqRcE

First, I would do a Search on this forum for "FRAPS." There are several articles with comments on the best workflow and also settings for Import and for Export.
Next, YouTube is trobulesome. First, they re-encode everything and their specs seem to change weekly. It's tough to find out what they want on any given day. I'd go to their site and get the very latest instructions and attempt to duplicate those perfectly, knowing that they might be different tomorrow.
Good luck with this one, and good luck with the FRAPS footage.
Hunt

Poor one-sided ichat video quality

The video picture that I see when ichatting with my mom is awful (around 50%). It only happens when I ichat with her, and she sees me fine. Our audio is also fine. My connection doctor indicated that: her video quality was 50%,her bitrate was 300 & mine was 600. Her connection doctor indicated that her bitrate was 700 & mine was 600. (I think both frame rates in both of our panels ranged between 11-17.) We both have MacBook Airs. Any thoughts as to what's happening and how to remedy it would be greatly appreciated. She bought the MacBook Air just so that we could ichat.
Thanks.

Hi
On your mum's mac go to ichats prefs click on video and change bandwidth limit to 500, if still happens try 200.
Restart iChat.
Tony

Video quality on macbook with retina

I am curious what current owners think of the video quality on the MacBook Pro with Retina. How does it look compared with video quality on a non-Retina laptop? Curious about:
1. Netflix quality
2. YouTube and other websites
3. iTunes downloads and other downloaded media.
I've heard some say that they need a higher bitrate to experience the same quality of video, subjectively. You'd be unlikely to find 1800p video from these sources (for maxing out the Retina resolution). I'd be concerned if blowing up lower-quality video (like 720p DVD quality) looks bad, because that's what you're most likely to view in 2012. Curious what your experience has been.

Maybe I should make my question clearer: I have read many reports of non-Retina apps looking worse on the rMBP screen, due to the pixel doubling+interpolation that the Retina does for these apps. My question is specifically whether this same issue could make video look worse on the rMBP than on a normal MBP laptop.
For example, does 720p video look blurrier on a rMBP screen than 720p video on a non-rMBP screen?
The issue is well known for apps, for example in Chrome until recently as shown here: http://www.engadget.com/2012/07/31/google-chrome-21-stable-release-adds-retina-m acbook-pro-support/.
My impression is this could also happen with video, and the problem is that "Retina-ready" video is not really available since it would have to be an extreme resolution.

Comparing video quality of AVCHD BluRay discs using Final Cut Pro Share vs Compressor

Up front, I will admit to being a newbie when it comes to using Final Cut Studio 3 and would appreciate some feedback from the Apple forum experts.
I have spent a lot of time trying to determine how to achieve an optimum group of Compressor 3.5.2 settings so that the playback video quality of an AVCHD BluRay disc is equal to or better than one created by using the simpler auto settings of FCPro Share, version 7.0.2.
When using Compressor’s auto/default maximum settings, I experienced the same error message reported in:
Error MessageDuring Creation of Blu-ray Disc in FCP and Compressor 3.5
https://discussions.apple.com/message/12073794#12073794
I have since made some Compressor AVCHD Discs with smaller bit rate settings and compared video quality with a single FCP Share AVCHD disc. Both seem to be equal in providing a very good video when viewed on my new Panasonic DMP BDT 310 BluRay player. However, the Compressor AVCHD discs show some motion artifacts not present with the FCPro Share version, especially when scrolling text or when objects are moving through the field of view, and visible artifacts are seen from a stationary chain link fence and other lattice work in the background of the video sample.
My sample video used for the comparisons between Compressor and FCP Share discs is a 21 minute duration home movie, originally captured from a mini DV, Canon HV30 1080i camcorder using ProRes HQ encoding(1440x1080), and dragged into FC Pro 7.0.2 timeline where 10 chapter markers have been inserted.
To create an AVCHD disc using FCPro Share, Markers are used to set the IN and OUT points, Select IN to OUT from the timeline, pull down File Menu Share, Select Create BluRay from options in pop out Share pane, and designate output device along with picture files for Background, Logo, and Title options. When these are completed, click on Export. My 21-minute video required almost two hours for encoding including about 10 minutes for burning. This accomplished on an iMac 3.06 GHz Intel Core 2 Duo.
To prepare this same 21-minute video for use with Compressor, I again Select IN to Out from the FCPro timeline, but this time use File Export as a QuickTime Self Contained movie including Chapter markers. Then Open Compressor, choose Create BluRay from Template pane, right click on the down arrow in the Batch window and load the QT self contained movie file. From there I went to the Inspector window and tried various combinations of bit rate settings along with Frame Encoder options such as Better or Best motion parameter controls.
I have tried the following combinations of Bit rate settings along with varying Frame Encoder controls and burned an AVCHD disc for each example:
Example A
Compressor set to 6 Mbps Average and 8Mbps Maximum, Frame Encoder settings OFF. Approximately 4 hours to encode although the time remaining estimator indicated a larger value of ~7 hours; not an accurate estimator at all.
Example B
Compressor set to 6 Mbps Average and 8Mbps Maximum, Frame Encoder settings ON, using “Better (Linear Filter) and Better (Motionadaptive)” settings. Approximately 4 hours to encode, not the 13 hours that were estimated.
Conclusion: Comparing A & B Compressor versions, Disc B showed some improvements in reducing motion artifacts over Disc A.
Example C
Compressor set to 13 Mbps Average and 15 Mbps Maximum, Frame Encoder settings ON, using “Better (Linear Filter) and Better (Motion adaptive)” settings. Multipass checked. DeInterlace was checked. Unknown hours to encode; about 8 hours done overnight..
Conclusion: Disc C showed some minor improvements reducing motion artifacts over Disc B
Example D
Compressor Auto settings,i.e., 15 Mbps Average and 17 Mbps Maximum, Frame Encoder settings ON, using “Better (Linear Filter) and Better (Motion adaptive)” settings. Multipass checked. Approximately 12 hours to encode, done overnight. Inserted disc next morning after the overnight encoding was completed, and a few minutes later an error message pane appeared that the maximum bit rate had been exceeded. This message was consistent with the Apple posted thread referenced above. Unfortunately the long overnight encoding was wasted.
It seemed to me that the best Compressor settings for suppressing the motion artifacts were displayed by the disc burned in Example C, i.e., 13/15 Ave/Max Mbps with“Better” Motion settings in the Frame Encoder.
However, when this disc was compared to the AVCHD Disc burned using the FCPro Share, the latter still seemed much better. I do not know what the auto bit rate values are as set in FC Pro, but for me, the quality is quite good AND the motion artifacts are significantly reduced, especially evident with the scrolling text.
Sorry about this long post, but I thought the detail would be necessary for the experts, and maybe helpful to others trying to get started in this BluRay arena. Did I misuse Compressor? I think the sample video exported as a self contained QT movie was the right thing to do? Not sure where I went wrong.
Thanks in advance for Feedback and Recommendations. For now, I’m going to stay with the simpler process using Final Cut Pro Share function.
BoBo

Thank You, Brad, for responding; glad to hear I'm not the only one having similar Compressor issues.
You may have hit on something. Perhaps Compressor's use of H.264 encoding was the reason for my motion artifacts? And perhaps Final Cut Pro Share retains the 1440x1080 quality as it burns the AVCHD BluRay disc?
I had Toast 10 for less than 30 days a couple of years ago, and was lucky to get a refund.
What version of Toast do you have? Wondering if new Toast 11 has improved previous bugs, especially upgrading its Chapter text, pictures, music. I would go back to Toast if it came close to mirroring DVD Studio Pro, or even iDVD capabilities.
Thanks,
BoBo

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